05/16/1994 - Advisory Parks & Recreation Commission
AGENDA
ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION
EAGAN, MINNESOTA
Monday May 16, 1994
7:00 PM
Eagan Municipal Center
A. 7:00 P.M. Regular Meeting
B. Call to Order and Pledge of Allegiance
C. Approval of Agenda
D. Approval of Minutes of Regular Meeting of April 18, 1994
E. Visitors to be Heard
F. Consent Agenda
(1) Amundson Corner Addition - Gilbert Anderson (Pages 5-7)
G. Development Proposals
(1) Theodore Wachter Addition - Eagan Municipal Center (Pages 9-16)
(2) Crestwood Addition - Freightmasters (Pages 17-22)
(3) Vantage Point - Remo Caponi (Pages 23-27)
(4) Whispering Woods 10th/Cedar Heights (Pages 29-33 and
Pages 35-40)
H. Old Business
(1) Tree Preservation Guideline Changes (Pages 41-42)
1. New Business
(1) Dakota County Park Planning of Lebanon Hills (Pages 43-46)
(2) Sidewalk Extension - Slater Road (Pages 47-48)
J. Parks Development Update
K. Water Quality
L. Other Business and Reports
(1) Department Happenings (Pages 49-51)
(2) Erosion Control Letter (Pages 53-54)
(3) Mission Statement
(4) Minnesota Valley Deer Management Task Force Update
M. Round Table
N. Adjournment
***NOTE: 6:00 PM NATURAL RESOURCES SUBCOMMITTEE MEETING
(Presentation of Trust for Public Land)
6:30 PM RECREATION SUBCOMMITTEE MEETING
The City of Eagan is committed to the policy that all persons have equal access to its programs, services, activities, facilities and
employment without regard to race, color, creed, religion, national origin, sex, disability, age, marital status , sexual orientation, or status
with regard to public assistance. Auxiliary aids for disabled persons wishing to participate are available upon request at least 96 hours
in advance of the events. If a notice of less than 96 hours is received, the City will make every attempt to provide the aids.
city of eagan MEMO
DATE: MAY 12, 1994
TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS & RECREATION
SUBJECT: COMMISSION MEETING MONDAY, MAY 16
Prior to the start of the regular Advisory Parks, Recreation & Natural Resources
Commission meeting on May 16th, there will be a oresentation by Trust for Public Land
beginning at 6:00 PM. The Trust for Public Land is working toward the acquisition of the
Remo Caponi property for inclusion into the Caponi Art Park. Commission Chair, Lee
Markell, thought it would be educational and advantageous for the natural resources sub-
committee and other members of the Advisory Commission wishing to hear this
presentation and learn of their work.
Scheduled to begin at 6:30 PM is the recreation sub-committee which will meet In the
Department offices. The sub-committee will spend a few minutes reviewing the 1995
Program/Budget and have a brief update from Walker Lee Ashley, our new Youth
Development Coordinator, on the planning of activities for the Wescott Commons
neighborhood.
The regular Commission meeting will begin at 7:00 PM. Following the approval of the
agenda and minutes of the April 18, 1994 Commission meeting, the first item is the
Consent Agenda. Unless the Advisory Commission members have specific questions
about this particular item, it would be appropriate for the Commission to make a motion
for approval.
Develooment Proposals
There are four Development Proposals, three of which are new to the Commission's
agenda. The first item is the Theodore Wachter Addition which is the Municipal Center
expansion program. A staff report has been prepared for the platting of the City Hall
property. City staff has felt it would be advantageous for the City to plat the property
upon which the Municipal Center now sits. Consequently, the preliminary plat application
Is to be reviewed by the Advisory Parks, Recreation & Natural Resources Commission
and the Advisory Planning Commission.
The second item is Crestwood Addition/Freight Masters. This is primarily a trucking
terminal located in the Silver Bell 2nd Addition.
Item three is the Vantage Point-Remo Caponi property development. This residential
subdivision is located west of the Lexington Diffley Athletic Site and will have access
across City property.
The fourth item is a combination of Whispering Woods 10th and Cedar Heights residential
developments. The Advisory Commission reviewed these two development proposals at
the April 18th Commission meeting and. continued Cedar Heights Addition to the May
meeting so the Natural Resources sub-committee could meet to review water quality and
tree preservation issues: The pub-committee met on April 27th to review a sketch plan
of the revised layout. After review and discussion by the sub-committee, they are
supporting a full recommendation of the Advisory Commission to the City Council. A
separate memorandum has been prepared for these items for review.
Old Business
The Natural Resources sub-committee also met to review several changes in the Tree
Preservation. Guidelines. A separate memorandum has been prepared by John
VonDeLinde and has been Included for your review.
New Business
The first item under New Business Is Dakota County Park Planning at Lebanon Hills
Regional Park. Steve Sullivan of the Dakota County Parks Department and Bob Doffing,
member of the Dakota County Parks & Recreation Advisory Committee, will be present
at the Commission meeting to review the proposed development plans for projects that
the county park hopes to have. underway this year. Staff felt that it would be important
for the County staff to make this presentation to the Advisory Commission. Though
formal approval is not necessary for them to proceed, the County is open to suggestions
and comments from the City of Eagan and the Parks, Recreation & Natural Resources
Commission on the plans. Enclosed on pages 4-4 through 4 is the written
program statements for the park.
The Advisory Commission should also make note of the fact that the Dakota County
Parks Department has recently published a draft policy plan for the County Parks System.
The Director of Parks and Recreation received a copy of the draft plan at a meeting on
May 10th, for review. The County is asking for comments back by May 17th. The
comment that staff will be making to the County Parks Administrators Is that they conduct
a series of public meetings within communities and with local parks and recreation
advisory bodies in an effort to ensure that there is an integration of parks and recreation
services between local communities and the County.
The second. item Is pertaining to the extension of a sidewalk/trail on Slater Road. The
issue Is whether there should- be a sidewalk/trail and what the limits are.
Parks Development
C.J. Lilly, Landscape Architect/Parks Planner, will update the Advisory Commission on
the parks development and activities that are occurring at Lexington Diffley and other park
locations.
Water Quality
Rich Brasch, Water Resource Coordinator, has indicated that he has only a few brief
Items to review with the Commission regarding water quality.
Other Business & Reports
Currently, there are only four items under Other Business & Reports. Department
Happenings are first. The erosion control letter has now gone out to the development
community concerning the City's intention for enforcement of erosion control within new
residential subdivisions (the letter is attached). The Mission Statement and Minnesota
Valley Deer Management Task Force Update are also on the agenda.
Following adjournment, the Advisory Commission should anticipate a 15 to 25 minute
meeting to review subdivisions that have been submitted and are tentatively scheduled
to be appearing on, the June Advisory Commission Meeting's agenda. The Commission
had previously expressed a desire to be involved earlier in the process of seeing what
the upcoming development items are to be. Since the 15th is the deadline for
submissions for the following month, those submissions will be available for quick review
by the sub-committee for comment.
.Members are asked to read the Plan Sections on the Park Systems Plan prior to the
evening meeting. The Commission will need. to take 30 to 40 minutes to provide
feedback on these sections so they can be comunicated to the consultant.
As always, If members of the Advisory Commission are not able to attend the
Commission meeting, they are asked to call Cherryl at 681-4660.
KV/lk
3
city of eagan MEMO
DATE: MAY 12, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: CONSENT AGENDA
1. AMUNDSON CORNER ADDITION - GILBERT ANDERSON
BACKGROUND
This request is for a Preliminary Plat consisting of 1.25 acres and two single
family lots located in the SE 1/4 of section 29 on Lenore Lane and Cliff Road.
PARKS?RAILS DEDICATION
This plat should be subject to a cash parks and trails dedication for the newly
created lot.
WATER QUAUTYPNETLANDS
Water Quality
Because of the small size of the additional development proposed (one
additional single family unit), on-site ponding for water quality Is neither
necessary or practical.
We tnds
There are no wetlands on this site.
TREE PRESERVATION
The preliminary plat indicates that significant oak trees do exist on site and
an Individual lot Tree Preservation Plan should be submitted at the time of
building permit application.
cS-
FOR COMMISSION REVIEW AND ACTION
The Commission should review and consider the following recommendations:
1. This plat would be subject to a cash parks dedication for the newly
created lot.
2. This plat would be subject to a cash trails dedication for the newly
created lot.
3. This plat would be subject to a cash water quality dedication.
4. There are no wetlands subject to regulation under the Wetlands
Conservation Act on this parcel.
5.. An individual lot Tree Preservation Plan will be required at the time of
building permit application.
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MEMO
city of eagan
DATE: MAY 10, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: THEODORE WACHTER ADDITION (Municipal Center Expansion)
BACKGROUND
The City of Eagan is expanding its Municipal Center operation to include the first
phase construction expansion of the police building. The property that the City
acquired in the late 1970's was never platted. Although there is not a strict
requirement. for municipalities to plat property, City staff and Council thought it
would be appropriate for. the City to plat the property at this time. Consequently,
a preliminary plat application, has been prepared for review by the Advisory
Commission and Planning Commission.
Unlike other developments, this particular plat will pay no.fees associated with the
development process. The City will meet other requirements associated with
development activities including utility and water connections, water quality,
wetlands and tree preservation requirements.
New roadway construction was planned to service this facility. Orientation of the
police building will be to the south, with a new parking lot servicing this orientation.
Public parking will be serviced by a new ring road intended to be more of a civic
center parkway. The City is currently. Working with the. library for relocation of the
library entrance allowing for singular access off Wescott Road. The library would
then gain access from this new entrance. Given proper monumentation and
signage,,it is hoped that the public would be better served by this new perimeter
parkway, not only for City Hall functions but also library functions.
Construction of the new police facility and remodeling of the City Hall will be a
phase project over the next two years. During this phase approach, relocation of
trees will result. The City's forestry 'department will be relocating trees currently
on the site to safe locations such as the library or parks within the City.
PARKS AND TRAILS DEDICATIONS
As mentioned previously, there will be no parks or trails dedication associated with
this plat.
7•
WATER QUAUTY/WETLANDS
Water Quality
This development, located in drainage basin J eventually discharges to Fish Lake.
the northern ,I1.8 acres of the site currently drains to Pond JP-15 which is
classified as an indirect contact recreation-basin that discharges to Fish Lake. The
southern 22.7 acres discharges to Pond JP-6, an 8 acre wetland with an average
depth. of about 3 feet classified as an indirect contact recreation water body in the
City's water quality management plan.
Development of the site that lies within the direct drainage of Fish Lake will
increase by about 1.8 acres the impervious area that discharges to this drainage.
Because of the topography and constraints imposed by the existing development
features on the site, staff concludes that on-site ponding is not feasible.
Of the 22.7 acres that currently drain too the south, about 11.7 acres are currently
undeveloped and 11 acres are developed as part of the present Municipal Center
complex. Since the current development on the site occurred prior to the adoption
of the Pity's water quality ordinance, on-site ponding to treat stormwater was not
considered at the time. On-site ponding is feasible and has been incorporated into
the site plan considering the present development proposal as well as likely future
development which will be similar in intensity to commercialrndustrial. The pond
system is currently designed to treat runoff from both the existing "grandfathered"
portion of the City-owned portion of the Pond JP-6 watershed and all new
development that is likely to occur on the site In the future. The pond will generate
sufficient water quality treatment "credit" for both the north and sough sub-
drainages of the site.
Wetlands
A wetland inventory completed by City water resources staff identifies four small
wetlands ranging in. area from 60 square feet.to 4,000 square feet where located
within the development area. None of the wetlands are identified on the National
Wetlands inventory but are associated with ditches and overland drainage swales.
Staff has documented through detailed soil surveys, 1970 and 1990 aerial photos
and grading records that. these wetlands were formed by site grading that altered
drainage patterns and inadvertently created the wetland. Since the actions were
taken by public entities; the wetlands are exempt from regulation under the
Wetlands Conservation Act and can be filled or drained without providing
replacement.
A fringe wetland located adjacent to Pond JP-6 was also found and delineated.
No filling or draining of the wetland is being proposed as part of the development.
TREE PRESERVATION
The tree inventory for this site indicates that a total of 132 trees and 28,400 square
feet of significant woodlands. The woodlands are comprised mostly of chines elm,
box elder and silver maple with the exception of 2,500 square foot pine plantation
woodland. Staff is recommending that 122 trees on site be either preserved during
construction or transplanted to a safe location on site. Ten trees are
recommended to be removed because they are either too large to be transplanted
or they are damaged or diseased.
/d .
FOR COMMISSION REVIEW AND ACTION:
The Commission should review and consider the following recommendations:
1. The developer provide on-site ponding to meet water quality treatment
requirements for this development. Ponding should be designed to treat
runoff from existing and proposed developed areas- in the south drainage
of the site, and will thereby provide sufficient treatment credit so that water
quality mitigation for the north drainage of the site is unnecessary.
2. Wetland basins 1, 2, 3 and 4 as identified in staffs February 10, 1994
wetland delineation and inventory report should be exempted from
regulation under the Wetlands Conservation Act as allowed under the
permanent program rules.
3. No filling or draining of the delineated fringe wetland adjacent to Pond JP-6
be permitted.
4. 122 trees. on site be either preserved during construction or transplanted
to a "safe" location on site. Ten trees are recommended to be removed
because they are either too large to be transplanted or they are damaged
or diseased.
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city of eagan MEMO
DATE: MAY 1, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: CRESTWOOD ADDITION - CRESTWOOD ENTERPRISES
BACKGROUND
A preliminary plat application has been submitted consisting of one lot on 12.719
previously zoned L-1 (Light Industrial) acres and a Conditional Use Permit to allow
a truck and freight terminal located In the NW 1/4 of Section 17.
This site, was previously reviewed as part of the Silver Bell 1st Addition
approximately ten months ago. The site has previously been graded and is
essentially devoid of any natural resource amenities.
PARKS AND TRAILS DEDICATIONS
This area sits within Park Service District 18 and is removed from the general
residential area located to the west. Pedestrian and trail access for the motor
freight carrier is deemed a low priority.. Staff would.be recommending that this
development be subject to a cash parks dedication and a cash trails dedication
requirement.
WATER QUALITY/WETLANDS
Water Quality
This development is located at the lower end of Drainage Basin A. Runoff from
the site will discharge to a small. pond within the Silver Bell development site which
in turn discharges to a drainage that meanders through wetland on its way to a
back water of the Minnesota River within Fort Snelling State Park. There are no
downstream water bodies classified for recreational purposes according to the
Eagan Water Quality. Management Plan, but a portion of the Nicols fen apparently
lies between the ponding area on Silver Bell and the Minnesota River. To prevent
erosion on the down-drainage channel and protect the quality of water in the river
valley wetland complex, an expansion of the pond to satisfy water quality treatment
requirements is recommended by staff.
Wetlands
The developer's wetland consultant conducted a field review of the site In April
1994. The only wetland found lies along the northwest perimeter of the site. The
developer's consultant has submitted documentation showing that the wetland may
be exempt from regulation under the Wetlands Conservation Act. Soil borings
within the wetland site indicate that about four feet of hydric soil was placed as fill
on upland soils within the site. In addition, aerial photos from 1979 and anecdotal
evidence indicate that the flit was excavated from portions of the area now
occupied by Highway 77, and that the site was being graded at the time the photo
was taken. Based on this, information, staff believes that the wetland was
unintentionally created as a result of a publicly approved project and is therefore
covered under Exemption 10 of the Wetlands Conservation Act.
TREE PRESERVATION
A Tree Preservation Plan has been submitted for this development. The majority
of this site has been previously cleared and graded, however there are a total of
16 significant trees currently on site (cottonwoods and boxeiders). Initial site
development will result In the removal of five significant trees (31.3% of the total)
and the allowable removal for this type of development is 30%.
FOR COMMISSION REVIEW AND ACTION:
The Commission should review and consider the following recommendations:
1. This development would subject to a cash parks dedication.
2. This development would be subject to a cash trails dedication.
3. This development would be required to provide ponding to meet water
quality treatment requirements for the site.
4. The wetland Identified on the site would be exempt from regulation under
the Wetlands Conservation Act.
5. The developer would be responsible for planting 2 Category B trees as
mitigation for the loss of significant trees in addition to the normal
landscaping requirements for this site. The Tree Preservation Plan
indicates that ten Category 8 trees will be planted as replacement trees.
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MEMO
- city of eagan
DATE: MAY 10, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: VANTAGE POINT - REMO CAPONI
BACKGROUND
This Is a proposal for the rezoning of approximately 5.92 acres from
A(Agricultural) to R-1 (Single Family) and a Preliminary Plat for 11 lots located in
the NE 1/4 of Section 27 on the south side of Diffley and west of the Lexington
Diffley Athletic site.
This parcel is surrounded by City parkland to the east and north and by the
proposed Tony Caponi Art Park to the west. An existing home on the property
is serviced through a 16 foot wide road access which begins at the Intersection
of Diffley and Lexington Way. When the City acquired the Lexington Diffley
Athletic site, this road access easement was already In place and runs with the
property. However, :the access easement is written In such a manner which
would indicate that the land owner (the City) has the option of relocating this
access road at its discretion. Because of the construction of the Lexington Diffley
Athletic Fields, this access road would be relocated as a gravel access to the
existing home site. Development of the property for single family homes,
however, will require a public road to service this property. It will be Incumbent
upon the developer to petition for a public street to service this development.
This particular parcel is located in Park Service Section 27 which Is serviced by
Carlson Lake, Oak Chase and Clearwater Parks as well as Goat Hill Park and the
new Lexington Diffley Athletic site. This residential development will have limited
access to a neighborhood park facility. although future development within the
Lexington Diffley Athletic complex will provide some recreational amenities that
would be available for this subdivision.
Access to trails begins at Lexington Way and Diffley Road.
PARKS AND TRAILS DEDICATIONS
Staff would recommend that this subdivision be responsible for a cash parks and
a cash trails dedication.
WATER QUALITY/WETLANDS
Water Quality
This development will discharge stormwater to a storm sewer line in Diffley Road
which in turn discharges to Pond JP-8.1 located in Patrick Eagan Park. Pond JP-
8.1 was constructed at the City's expense to catch and treat runoff from Diffley
Road and adjacent properties between the Rooney property and the intersection
of Lexington Avenue and Diffley Road. Pond JP-8.1 discharges to Pond JP-8
which is also located in the park and classified as a scenic recreation water body.
Because Pond JP-8.1 is adequately sized to protect the water quality of Pond JP-
8 and to avoid impacting the considerable woodland resources on the Vantage
Point site, staff recommends that the developer pay a water quality cash
dedication in lieu of on-site ponding.
Wetlands
There are no wetlands subject to regulation under the Wetlands Conservation Act
on the parcel.
TREE PRESERVATION
A Tree Preservation Plan has been received for this development showing a total
of 104 significant trees on the site. This tree mass is concentrated on the north
half of the development (lots I through 6) with a makeup of about 50% oaks
ranging in diameter from 8" to 40". The remainder of tree mass includes black
cherry, birch, cottonwood and box elder. The initial site development will result
in the loss of 6 significant trees (5.8% of the total), including one 811 apple tree
and five white oak trees (40", 34", 23", 38", and 27"). All of these trees will be
removed for road construction. The allowable removal for this initial site
development is 25% of the total number of significant trees. The tree removal
proposed for this site does fall within the allowable range per the Tree
Preservation Guidelines.
FOR COMMISSION REVIEW AND ACTION:
The Commission should review and consider the following recommendations:
1. The developer be responsible for initiating a petition for a public stree
across City property and for the road plan to be reviewed by the Advisory
Parks, Recreation and Natural Resources Commission to ensure design
compatability with the Eagan park.
2. The developer vacate the 16 foot access easement at the time of final plat.
3. This development be subject to a cash parks dedication.
4. This development be subject to a cash trails dedication.
5. This development be subject to a cash water quality dedication.
6. -There are no wetlands subject to regulation under the Wetlands
Conservation Act on this parcel.
7. Recommend approval of the Tree Preservation Plan as it exists for initial
site development
8. Acknowledge that the presence of significant trees on Lots I through 6,
and Lots 8 and 9 within the development will require future, builders of
those lots to prepare individual lot Tree Preservation Plans at the time of
building permit application
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city of eagan MEMO
DATE: MAY 10, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: WHISPERING WOODS 10TH
BACKGROUND
A preliminary plat application has beer.-submitted for the Whispering Woods 10th
Addition, which requests rezoning.of 6.25 acres from agricultural to R-1 and a
preliminary plat of 14 lots and I outlot. This subdivision Is located south of the
existing Whispering Woods additions in the southwest quarter of Section 31 and
Immediately west of the proposed Cedar Heights Addition and the extension of
Slater Road.
This development, along with Cedar Heights Addition was previously reviewed by
the Advisory Commission at their April 18 meeting. At that meeting it was the
Commission's -recommendation that -water quality and wetlands issues be
separated from the rest of the recommendations so that the Natural Resources
Sub=committee could review these Issues in conjunction with their review of the
Cedar Heights Addition.
PARKS AND TRAILS DEDICATIONS
In.. their review of the parks and trails issues, the Advisory Commission
recommended that this proposal be subject to a cash parks dedication as well as
a cash trails dedication.
WATER QUALITY/WETLANDS
Water. Quality
This development is located in far southwest Eagan just west of the proposed
Cedar Heights, development. It is located near the watershed divide between Pond
AP-34, a high priority Class II water body in Eagan, and a designated stormwater
pond Inthe City of Suns ville. Staff Is recommending that the developer excavate
and expand a wetland on the.10th Addition site to treat stormwater for as much
of the site as possible.-The small wetland southeast of the intersection of Storland
and Slater Roads (designated Wetland A in the Cedar Heights wetland report)
should be used to treat runoff from impervious surfaces within the Whispering
Woods 10 Addition that lie too far north to be. routed to the treatment pond within
that development. Excavation of this pond by the developer will be necessary
because It is very shallow and has been impacted by erosion from the road
construction project to the west.
c f.
Wetlands
Teh developer's wetland consultant has located and delineated one wetland on the
site, a .14 acre shallow marsh straddling the back of Lots 3 and 4. Filling or
draining of this wetland. will be avoided, but it will be expanded and used for
stormwater treatment prior to discharge off the site.
TREE PRESERVATION
The Advisory Commission reviewed the tree preservation issues on April 18 and
acknowledged that this. development compiled with the City's tree preservation
policy. ' They also acknowledged that the presence of significan trees on all los
within the development will require future builders to prepare individual lot tree
preservation plans at the time of the building permit application.
FOR COMMISSION REVIEW AND ACTION:
The Commission should reiterate their April 18 recommendations as follows:
1. The development is subject to a cash parks dedication.
2. This development is subject to a cash trails dedicaiton.
3. It is acknowledged that the Whispering Woods 10th Addition development
complies with the City's tree preservation policy.
4. The presence of significant trees on all lots within the development will
require future builders to prepare individual lot tree preservation plans at the
time of the building permit application.
In addition, the Commission should consider the following recommendation relative
to water quality and wetland issues:
1. The developer is to provide on-site detention, ponds to meet water quality
treatment requirement or stormwater discharged to the drainage of Pond
AP-34.
2. A cash dedicaiton be required for all drainage from the site which is not
adequately treated with on-site ponding.
3. No filling or draining of the wetland identified in the March 10, 1994 report
for the site prepared by Pioneer Engineering be allowed.
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city of eager MEMO
DATE: MAY 10, 1994
TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS AND RECREATION
SUBJECT: CEDAR HEIGHTS ADDITION
BACKGROUND
This proposal Is a request for rezoning 17.7.acres from agricultural to R-1 and a
preliminary. plat consisting of 39 single family lots. This subdivision is located
south -of Storland Road, west- of Trunk Highway 77 and I-35E. The proposed
rezoning is consistent with the City's Comprehensive Guide Plan designation of D-
1, Single Family Residential.
This development, along with Whispering Woods 10th Addition was previously
reviewed by the Advisory Commission at their April 18 meeting. At that meeting
It was the Commission's recommendation that this item be deferred to the May 16
Advisory Parks, Recreation end.Natural Resources Commission so that the Natural
Resources Sub-committee could review water quality, wetlands and tree
preservation issues In conjunction with their review of the Whispering Woods 10th
Addition.
PARKS AND TRAILS DEDICATIONS
This subdivision is located approximately 1/4 to 1/2 mile from Slater Acres
neighborhood Park within Park Service District 31 W .
Slater Acre Road, located on the westerly edge of this subdivision, will
interconnect with the City of Burnsville at Burnsville Parkway. Since Burnsville
Parkway is a community collector street, the City of Eagan Is looking for a 70 foot
road right _ of way for Slater Road. Currently Burnsville Parkway has a trailway
located along the north side and staff is recommending that the trail/sidewalk be
extended from the Burnsville Parkway along the westerly edge of Slater Road.
Staff is also recommending that this development be subject to a cash parks
dedication and a cash trails dedication.
WATER QUAUTY/WETLANDS
Water Quality
The majority of this site drains to the north and will generate stormwater that will
discharge to Pond AP-34, a Class II indirect contact recreation water body that is
one of the two highest priority water bodies in drainage basin A. Without on-site
pending, to treat stormwater draining from this site to Pond AP-34, the City's non-
degradation standard for recreational class water bodies would be violated. A
small portion of the site drains to the south into Burnsville.
The Commission's Natural Resources Sub-committee reviewed this development
with. staff, at a meeting on April 25. Staff presented the results of discussions with
the developer regarding the feasibility of site plan changes to address water
quality, wetland, and woodland resource impact issues. Regarding water quality,
the Sub-committee recommended that all runoff generated by the site after
development within the Pond AP-34 watershed. be routed to an on-site pond
system for treatment and that the design of the pond meet NURP standards and
be acceptable to staff. The developer submitted a revised site plan to the City on
April 13, 1994, and the pond incorporated into that site plan appears to meet the
required design standards. The developer will not be required to divert to this on-
site treatment basin runoff from existing single family residential developments
adjacent to Cedar Heights, as previously considered.
Wetlands
The developer's wetland consultant has completed a survey of the site identifying
where three wetland basins were located and delineated. The developer has
applied to exempt two of the basins from regulation under the WCA. The
application has supplied evidence that both wetlands were created as the result
of the blockage of drainages by the construction of Storland and Slater Roads.
Staff finds the exemption documentation adequate and reasonable, and
recommends that the exemptions be granted. However, wetland basin A near the
intersection of Slater and Storiand Roads is located In an area that may not be
graded. and contains several significant trees in adjacent upland areas. Staff
recommends that the developer preserve this area to the maximum extent
possible. In addition, the developer of Cedar Heights Is agreeable to a City
proposal to require the discharge of stormwater from Whispering Woods 10th
Addition to this wetland prior to discharge to Pond AP-34, if the City determines
this action is desirable. _ In addition, some excavation of the pond by the
Whispering Woods 10th Addition developer will also be necessary.
The developer Is proposing to fill the third wetland, a .09 acre seasonally flooded
basin/shrub swamp located where a proposed road is planned for the
development. Staff has made an on-site sequencing determination as allowed
under the. WCA for wetland impacts under .1 acres, and finds that the proposed
filling will be acceptable if adequate replacement is provided. The developer
proposes to provide a replacement wetland as Part of the detention basin to be
completed for the development. The revised design of the on-site detention basin
meets the strict hydraulic criteria necessary to use a detention basin for wetland
replacement. Therefore, staff recommends approval of the proposed wetland
replacement plan for Cedar Heights submitted by Westwood Professional Services,
Inc. dated April 5, 1994 and. revised in an April 14, 1994 memo from the same
party.
TREE PRESERVATION
A revised Tree Preservation Plan has been submitted for this development. The
plan Indicates that a total of 48 significant trees and 10,650 square feet of
significant woodlands currently exist on site. Tree species are dominated by oaks
(8 to 28 in diameter) with a small percentage of other various cherrys, willow,
cottonwood and spruce trees. Initial site development will result in the loss of 18
significant trees (37.5% of the total) and the loss. of 7,900 square feet of significant
woodlands (74.2% of the total). Allowable removal of'this type of development is
25%. If this development proceeds as planned,.mitigation for tree loss would be
.achieved by planting 35 Category B trees (2-1/2" diameter) or 70 Category C trees
(1-1/2" diameter).
In addition,. the developer is. proposing to remove 8 significant trees from Lot 1,
Block 1 during initial site development. If this additional tree removal is Included
along with the previous 18 significant trees to be removed, the percentage of trees
removed increases to .54.2%, far exceeding the allowable removal. Staff is
recommending that these 8 trees (7 oaks ranging from 8" to 24" diameter and one
13" cherry) be preserved and only removed if necessary during Individual lot
development.
FOR COMMISSION REVIEW AND ACTION:
The Commission should review and consider the following recommendations:
1. The development is subject to a cash parks dedication.
2. This development is subject to a cash trails dedication.
3. The developer construct an on-site pond to meet water quality treatment
standards to protect Pond AP-34.
4. Exemptions from regulation under the Wetlands Conservation Act be
granted for wetland basins A. and B as identified In the Cedar Heights
Wetland Replacement Plan. However, the developer should preserve basin
A ' and shall allow its use as a detention basin for stormwater from
Whispering Woods 10th Addition.
5. The proposed wetland replacement plan for Cedar Heights compiled by
Westwood Professional Services, Inc. dated april 5, 1994 and as revised by
an April- 14, 1994 memo should be approved.
6. The developer of Cedar Heights be responsible for planting 35'Category B
trees or 70 Category C trees as mitigation for the loss of significant trees
and woodlands.
7. The developer preserve the 8 significant trees on Lot 1, Block 1 when the
Individual lot is built upon.
8. Acknowledge the presence of significant trees of woodlands on Lots 1, 2,
3, 4, 14, 15 and 30 of Block 2 within the development which will require
future builders of those lots to prepare individual lot Tree Preservation Plans
at the time of building permit application.
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MEMO TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES
COMMISSION
FROM: JOHN K VONDELINDE, SUPERINTENDENT OF PARKS
DATE: APRIL 28, 1994
SUBJECT: TREE PRESERVATION GUIDELINES - APPROVAL OF CHANGES
On Monday, April 25th, the Natural Resources Committee met to discuss proposed changes
to the Tree Preservation Guidelines. These changes were originally presented to the full
Commission at their regular meeting on March 14th. The Commission asked that this item
be deferred to the Natural Resources Committee for further review.
After reviewing this issue with staff the Natural Resources Committee is recommending that
the proposed changes be approved as presented. In addition, the committee recommended
a few other minor changes including the addition of a table of contents at the beginning of
the document.
On the issue of establishing "a credit system" for tree preservation on single family lots, the
committee agreed that it would not be in keeping with the objectives and intent of the
guidelines. This system was originally proposed by Lundgren Brothers Construction for
consideration on the Rooney Addition. Under such a system a developer or builder could
"bank" tree credits on lots where less than the maximum number of allowable trees were
removed, and in turn, use these credits against lots where more of the allowable trees were
removed. A probable result of this approach would be. that a developer or builder could
remove more trees from the development than would normally be allowed under the current
system where tree removal is examined on a lot by lot basis following site development. For
this reason, and complications of administering a program of credits across all developments,
the Commission determined that the current approach of evaluating tree preservation on
an individual lot basis is the only way of ensuring compliance with the standards objective
for tree preservation.
In a related matter the committee discussed a current "loophole" in the city ordinance and
policies regarding tree removal prior to preliminary plat. Currently, there is no provision
in the city ordinance restricting. a developer or property owner from removing trees on their
property prior to the submittal of a preliminary plat application. As a result, a scenario
could develop whereby a developer removes trees from a pending development, in the areas
of anticipated disturbance, in order to avoid mitigation requirements under the tree
preservation guidelines. To prevent this, staff discussed with the committee the option of
developing an ordinance that would require the issuance of a city permit before or removal
of a prescribed threshold of trees could occur. This would not be dissimilar to the city's
issuance of grading permits for land alteration or permits to plant trees within public right
of way areas.
41.
For Commission Action
The Commission is asked to take action on the following two items:
1. To approve or deny the adoption of the proposed changes to the tree preservation
idelines, and
2. recommend that staff research the development of a new ordinance requiring a
permit for the removal of significant stands of trees prior to the land
d velo ment phase.
onDeLinde
uperintendent of Parks
JKV/nab
A-t
PARK IMPROV PROJECT 94-3
LEBANON AII.IS REGIONAL PARK
DAKOTA COUNTY PARKS DEPARTIvMq'T
1. Sieaerai Project cri,,..
The project scope include design and development of five (5) recreation and natural
resource areas within the park. These development areas are located on the enclosed
map with this document. The five (5) development areas are as follows:
• Jensen Lake Picnic Area
This area is located north of Jensen Lake and currently is developed as a picnic
grounds, trail node and Canoe access. The project scope includes planning of the
area with primary development of a picnic shelter and detached restroom building.
Project scope. for construction of other site improvements and support facilities will
be determined during the planning process based on available funding and
establishment of developmental priorities.
• Holland Lake Picnic Area
This unimproved area is located south of Holland Lake. The project scope
includes planning the area as a picnic grounds and trailhead. The primary
development tasks include the construction of an access road, parking lot, ttails,
resiroom building, picnic shelter, picnic grounds and utilities. Project scope for
construction of other site improvements and support facilities will be determined
during the planning process based on available funding and establishment of
development priorities.
• Camp Sacajawea Youth Group Camp
Camp Sacajawea, located off McAndrews Road, currently supports a youth lodge
and campground. The project scope includes planning to locate vault toilets and an
outdoor classroom building. The primary development tasks include won
of an outdoor classroom building, vault toilets and widening the access road to the
lodge.
• Tent Camp Area Expansion
The existing campground located on Johnny Cake Ridge Road needs an expanded
tent camping area. The scope of the planning and development will include
locating and constructing tent camping sites and support fadlida within the
existing campground.
• Tamarack Bog Restoration
This site is one of Minnesota's southern-most tamarack bogL The development
scope is to restore the site providing a high quality andd sustainable
tamarack bog.
The preliminary improvement program for these five (5) development areas is further
described within Attachment g t . The planning process will design areas with a
-comprehensive facility program. The facilities to be constructed will be determined
during the planning process. based on the available funding and establishment of
developmentaj priorities. The preliminary improvement program, as described within
Attachment S t , also highlights primary facilities" that Dakota County assumes, at
minimum, will be constructed as part of this project.
43,
2. Pmiect Budget
The total project budget, is $839,239.00. This budget includes all project expenses
from design to having these. areas ready for public use. The consultant, when
preparing costs estimates, will need to include all costs, such as, but not limited to:
consultant fee, testing services, surveying, permits, construction costs, furnishings,
signage, etc. Budget arse can not be redistributed between development areas. The
project budget per development area is as follows:
- Jensen Lake Picnic Area
10. $659,982.00
- Holland Lake Picnic Area
- Camp Sacajawea Youth Camp Area $121,340.00
- Tent Camp Area Expansion $ 30,365.00
- Tamarack Bog Restoration S27,552.00
3. Scope of Work
• The Scope of Services includes six (6) components as follows:
- Refinement of the Preliminary Facility Program
Analysis of each Project Area
Development of Concept Alternatives for each Project Area
Refinement of a Preferred Plan for each Project Area
- Development of Construction Documents
- Construction Administration and Supervision (architecture only)
44.
ATTACHMENT 11
PRELIMINARY DEVELOPMENT PROGRAM
PARK IMPROVEMENT PROJECT 94-3
LEBANON HILIS REGIONAL PARK
DAKOTA COUNTY PARKS DEPARTMENT
Note: * indicates high development priority
¦ Jensen Lake Picnic Area
* Restroom Building (450 sq. ft.)
* Picnic Pavilion (100 capacity)
- Satellite Picnic Shelters and Sites
- Access Road
* Parking Lot and/or Existing Parking Lot Expansion
* Picnic Grounds
* Utilities
* Trails to Proposed Facilities and Integrated into Existing Trail System
* Security Lighting
* Grading
* Turf Establishment
* Miscellaneous Site Furnishings, Equipment, Signage
- Sand Volleyball. Courts
- Horseshoe Courts
- Bocce Courts
- Open Play Area
- Playground
- Canoe Launch/Access
- Dock/Deck
- Landscaping
¦ Holland Lake Picnic Area
* Restroom Building (450 sq. ft.)
• * Picnic Shelter (50 capacity)
- Satellite Picnic Shelter Sites
- Trailhead/Picnic Shelter (300 capacity) ~
- Access Road
* Parking Lot with Future Expansion
* Picnic Grounds
* Utilities
* Trails to Proposed Facilities and Integrated into Existing Trail System
Access Trail to Holland Lake
* Security Light
* Grading
* Turf Establishment
* Miscellaneous Furnishings, Equipment, Signage
Sand Volleyball Courts
Bocce Courts
Open Play Area
Playground
Dock/Deck
Landscaping
¦ Camp Sacajawea Youth Group Camp
* Widen the existing bituminous access road by approximately 4' - 6'
* Two (2) Vault Toilets (60 sq. ft. each)
* Outdoor classroom building (450 sq. ft.)
* Trails to proposed facilities and integration to existing trail system
* Miscellaneous Site Furnishings, Equipment and Signage
¦ Tent Camp Area Expansion
* Grading
Parking Lot
* Trails to proposed and existing facilities
* Turf Establishment
Satellite Picnic Area
Miscellaneous Site Furnishings, Equipment and Signage
Tamarack Bog Restoration
* Grading
* Storm Sewer
* Plant Material
* Access Trail
- Interpretive Area -
¦ General
- The program shall be revised and refined during the design process. Facilities may be
deleted and added to the preliminary program. The actual construction program will
be determined during the planning process based on funding and the establishment of
development-ptiotities.
- The bathroom building for the Holland and Jensen Picnic Areas may be the same
building.
The 50 capacity picnic shelter for the Holland Picnic Area needs to be architecturally
adaptable as a smaller and larger structure. The architect shall provide schematic
plans and cost estimates for a picnic shelter with capacities of 35, 50 and 75.
All facilities shall meet or exceed the "Americans with Disability" standards.
- The Dakota County Maintenance/Construction Division will construct facilities
indicated within the preliminary development program. The division's actual
construction program will. be determined during the planning process.
The vault toilets for Camp Sacajawea will be constructed by Dakota County.
- The Consultant shall make every effort to utilize existing facilities within the
developed areas when determined beneficial to the project.
46.
city of eagan MEMO
DATE: MAY 12, 1994
TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCES
COMMISSION
FROM: KEN VRAA, DIRECTOR OF PARKS & RECREATION
SUBJECT: SIDEWALKITRAIL SLATER ROAD
BACKGROUND
With the addition of residential development In Park Service Section 31W, the
extension of Slater Road to Burnsville Parkway will be completed. When the
Commission reviewed Whispering Woods 10th Addition and Cedar Heights
Addition, it was noted that a sidewalk/trail would be extended along the west side
of Slater Road to interconnect with the trallway in existence along Burnsville
Parkway.
ISSUE
The issue before the Advisory Commission is to make a recommendation and a
determination as to how far the trailway should be extended along Slater Road.
DISCUSSION
Extension of a sidewalk/trail along the west side of Slater Road beginning In
Burnsville and extending north to Storland Road is one logical terminus and seems
appropriate. At this intersection walkers could cross to the park. A case could
also be made for extending the 'trallway further to the north and the residential
subdivisions beyond the park so that they, too, would have access to the park. A
continuous extension would also provide pedestrian access from south of the park
to Cliff Road.
There may be physical features and constraints associated with this trallway.
There are already homes which -front on Slater Road that may object to the
sidewalk. Members of the Commission may wish to tour this section of roadway
to observe first hand potential constraints.
The cost for the sidewalk would be borne by the trails dedication fund, If the City
was to proceed with this project. The length of the trail from Burnsville to Storland
Road is approximately 1/2 mile. The extension of Slater Road is approximately 1/4
47.
mile and through this section, construction of the trail would be considerably
cheaper. Staff believes that this quarter mile section could be built for
approximately $10 per lineal foot. A much higher, dollar figure would need to be
calculated if it is the desire to have a trailway constructed the entire length. A
feasibility report for the project would help determine these costs.
FOR COMMISSION REVIEW AND ACTION
The Commission is asked for an affirmation that there will be a trail along the west
side of Slater Road. Assuming this, the Commission then should make a
determination as to the timing of this project and the priorities for it. At a minimum,
staff would recommend that the trailway along Slater Road be extended at least
through that portion of Slater Road Intended for construction. The other portions
of the trailway could be done at a later time depending on other priorities. It
should be noted that the current trait dedication fund is in a deficit position of
approximately $200,000 as a result of the construction activities associated with
County Road 30.
KV/lk
L4iSLATERRD.SW
4$ .
PARKS & RECREATION
DEPARTMENT HAPPENINGS
1. 54 Recreation staff have been concentrating on summer activities and up front preparations required
to be completed at this time. The Discover Us! brochure became available on May 4.
2. 5« Most field assignments are complete for EAA programs. Final information is yet to come from
travel baseball, soccer and softball. Every available space is being used.
3. The Dakota Hills Middle School Jazz Band will play for the Seniors group on Friday, May 27, at
Oak Woods.
4. si« Registration for sand volleyball and co-recreational team tennis will take place this month. Play
will begin in mid-June.
S. i« Rob Graham, Eagan High School girls track coach, has graciously agreed to assist the Department
in running a Hershey track meet in June. All of the SORR communities will be involved. The
event will be run at either the high school or middle school track.
6. g« Staff have met with administrative staff from Blackhawk Middle School. Play space for co-
curricular activities for the fall are most important in the short term. The school will utilize
Ohmann for soccer and Downing Park for football.
7. S« The weather was damp, cold....quite raw for the April 30/May.1 adult league softball tournament.
Concession sales grossed only $776. Experience tells us that in warmer weather sales approach
a gross of $2,000.
8. 54 On May 5, staff taped a show at Meredith Cable on summer recreation activities in Eagan.
9. Northwestern Tennis Association wishes to submit the Northview Tennis Complex for a national
facility award. Staff are putting together photos and information concerning the origin,
management and operation of the facility. Various user groups' views will be included.
10. Final plans for the May 21 Family Bike Fest are being made. Bicyclists from Apple Valley,
Burnsville, Lakeville, Farmington, Rosemount and Savage will join Eagan folks at Thomas Lake
Park. A presentation on bike safety will be given by Valley Bike & Ski, lunch will be served and
scenic ride routes will be offered to those attending.
11. 5« After focusing on the Wescott Commons area and meeting with management and owners, our
Youth Development Coordinator has been able to begin addressing some of the problems in the
that area. One of the problems was that some of the owners wanted to have the basketball court
removed. After. meeting with some of them, he was able to convince them of the importance of
the ' court and its value to Wescott. We came to the understanding that if the courts are to stay,
some alterations were going to be needed. Approval. was given to have the court fenced in and
the parking lot stripped along with the court. With these alterations, they are willing to let the
court stay. A summer basketball tournament was developed to begin June 15, 1994 to be called
"Wescott 4-On-4".
12. An additional problem at Wescott Commons is lack of a facility on the premises for programming.
After meeting with Bill Bennett, one of the owners of the property, he assured us that the renting
of a unit should not be a problem. We hope to begin programming from the unit in early July.
U. There will be a meeting at Dakota Hills Middle School with James Bean, Doug Matteson, Walker
Lee Ashley and a group of teens from the Wescott Commons area on May 11, 1994. This meeting
was to identify some of the teens in the area and build a rapport, to make them aware of the
future for Wescott and the City of Eagan's intentions to help them.
14. A young female developmental program has been developed and is ready for implementation once
the apartment is rented for programming.
4'?.
Department Happenings
Page -2-
15. Walker Lee has met with several of the community leaders for introductory purposes and to make
them aware of the City's intentions for youth development.
16. Water was turned on in park. shelter buildings and pavilions and all necessary plumbing repairs
were completed thanks to park maintenance workers Scott Eppen and Gary Skogstad.
17. s Seasonal park maintenance worker Jean Martin spent several of her first days back this spring
aerifyng' all of Eagan parks' non-irrigated.athletic turf. This procedure helps relieve compaction
and allows oxygen and water to penetrate the ground for a healthier turf.
18. a Soccer fields and foul lines have been laid out and striped thanks mainly to returning seasonal
maintenance worker George Sellnor.
19. Paul Graham of our parks maintenance staff completed spring overseeding, mainly at winter
skating sites. This will help to rejuvenate these sites that are subjected to severe frost damage
during the winter months. The pleasure rink at Clearwater Park was also seeded in hopes of using
it as an auxiliary football field this fall.
20. Infields have been graded, aglime supplemented as needed, base anchors and pitching rubbers
reset and all athletic fields are ready for use thanks to the efforts of Dan Curtin, Don Buecksler
and Steve Taylor.
21. Spring fertilization of parks and government buildings has been completed by park maintenance
workers Alex Lammers and Paul Graham.
22. M Routine maintenance programs for the warm season months has begun in earnest. These tasks
include mowing of all parks, boulevards and public building sites, infield dragging, refuse collection
and field striping. The majority of these tasks are performed by seasonal maintenance workers.
23. Is Training and orientation of seasonal maintenance workers, ballfield attendants, park attendants
and forestry technicians is being done on an ongoing basis. This coordinated effort is being
conducted by Park Supervisors Jim McGuffee and Rich Pelletier and Supervisor of Forestry Gregg
Hove, with assistance by Park Superintendent John VonDeLinde and park maintenance worker
Steve Taylor.
24. aw The Sentence to Service Program completed the remaining landscaping and tree planting in
$lackhawk Park in, early May. The crew also installed a raised the. planter around the new
Blackhawk Park sign. in addition, STS unwrapped 3,000+ trees in two parks, did cleanup work
in several areas and prepared 'new landscape bed near the Trapp Farm Pavilion for spring
planting by the Dakota Hills Middle School Sunshine Youth Club.
25. Gregg Hove, Supervisor of Forestry, is to be commended for an outstanding job in organizing and
following through with all three of the major Arbor Month activities -the Tree Sale, Arbor Day,
and School Programs. Every program was delivered flawlessly with the skills of a true veteran.
Nearly 5,000 residents were involved in some aspect of this year's programs. Thank you, Gregg,
for a tremendous effort!
26. I. A special thanks goes to the employee volunteers from U.S. West who assisted with bagging trees
at this year's City Tree Sale.
u0.
Department Happenings
Page -3-
27. Several community volunteers and organizations have stepped forward to do park landscaping and
flower bed projects this spring. They are:
Country Home Carol Duzois
Evergreen Linda Ashton
Trapp Farm Sunshine Youth Club - DHMS
Mueller Farm Pack 453 Boy Scouts
O'Leary Jackie Grinde
Northview Lutheran Brotherhood Employee Club
28. The 1994 Arbor Day Ceremony was April 30 at South Oaks Park
• 60 oak trees were planted as part of the Arbor Day Ceremony.
• 30 Sumac shrubs were planted.
• Project theme was to recreate an Oak Savannah Land type.
• 1995 Poster Contest winner was announced. Brianna Ziegler from Thomas Lake Elementary.
• Attendance: There were 125 people who helped plant trees and then enjoyed the ceremony and
following picnic lunch.
29. Public Tree Sale (as part of the. 1994 Arbor Month Celebration) was held on May 6th and 7th.
965 trees were sold to residents. The sale was a very positive event as comments were received
from participants.
30. On April 21s4 the City of Eagan was again awarded National recognition as a Tree City USA for
the sixth straight year.
31. S. Park entrance signs are being landscaped through the assistance of resident volunteers (labor and
maintenance) at the following locations:
• O'Leary Park; south entrance
• Mueller Farm Park
• Evergreen Park
32. With the assistance of Sentence To Serve crews, an "America's Tree Ways Program" has been
completed. This program involved planting 1,000 seedings on an open hillside in Blackhawk Park
(adjacent to 35E). Seedings are provided at no cost from major forest industries and are to be
planted by "volunteer" organizations.
• May 16, 1994 Commission Meeting
• May 18, 1994 Council Meeting
3Rvp:lwppents.J29 S/
city of aagan
THOMAS EGAN
Mayor
April 29, 1994 PATRICiA AWADA
SHAWN HUNTER
SANDRA A. MASIN
THEODORE WACHTER
Council Members
RE: EROSION CONTROL GUIDELINES THOMAS HEDGES
City Administrator
E. J. VAN OVERBEKE
TO: BUILDERS & DEVELOPERS City Clerk
Due to the increase in the number of complaints regarding soil in the streets and storm
sewers, effective Immediately the City of Eagan will be implementing the following
procedures:
1. Dirt and debris must be kept off the streets and out of the storm sewers.
Developers will be responsible for maintaining clean streets within their projects
as required in the development contracts.. Section 6G states: "The Developer
shall clear any soil, earth or debris, from the streets and wetlands within or
adjacent to this addition resulting from the grading or building on the land within
the addition by the Developer or its agents." Developers must sweep the streets
in their subdivision at least once a week; however, this schedule may increase in
frequency, depending on weather conditions. We suggest sweeping at the end
of each week, the result of which would be a clean development for the weekend
model home open houses. The Protective Inspections Division will be monitoring
the sweeping operations.
2. If a cleanup is required, i.e. large amounts of soil on the street, the developer will
be responsible to correct the problem within 24 hours. If the cleanup is not
performed, the City or its agent will then clean the street and charge the cost to
the developer. This charge will be calculated to Include administrative costs and
will, therefore, be significantly higher than if the developer were to.clean up the
streets privately. Bill Bruestle, Building Inspector for the Protective Inspections
Division will attempt to contact the developer or its designated agent before the
City's cleanup Is performed. Bill may be reached at 661.4675. Occasionally
emergency situations dictate the City to act immediately In an effort to prevent an
accident. In such o 'case, the developer might not be contacted due to the
urgency of the problem.
S3.
MUNICIPAL CENTER THE LONE OAK TREE MAINTENANCE FACILITY
3830 PILOT KNOB ROAD THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY 3501 COACHMAN POINT
EAGAN, MINNESOTA 55122.1897 EAGAN, MINNESOTA 55122
PHONE: (612) 681-4600 PHONE: (612) 681.4300
FAX: (612) 681-4612 Equal Opportunity/Affirmative Action Employer FAX: (612) 681.4360
TDD: (612) 454-8535 - IDD: (612) 45448535
3. When a dirty street has obviously been created from a particular lot, the builder will
be responsible for cleaning up the debris within 24 hours. If the problem is not
resolved, future inspections will be hafted until the street is cleaned. The
Protective Inspections Division may be reached at 681-4675 to answer
questions regarding builders.
4. The Engineering Division will identify any area requiring erosion control measures
on the Certificate of Survey.. It will be the responsibility of the builders to install and
maintain these measures. If you have concerns about grading or erosion control
within the development, or work within the right-of-way, contact the Engineering
Division at 681-4646.
Please inform all-subcontractors and delivery crews of this new policy. It is our Intent that
by notifying all concerned parties, the City will not have to take any action in this regard.
Sincerely,
Peggy. A Reichert Ken Vraa
Director of Community Development Director of Parks & Recreation
'4Z om obert
Director of Public Works
PAR/TC/KV/js
city of ecigcin
THOMAS EGAN
Mayor
PATRICIA AWADA
SHAWN HUNTER
May 11, 1994 SANDRA A. MASIN
THEODORE WACHTER
Council Members
MR. CHARLIE. MELCHER THOMAS HEDGES
ULTEIG ENGINEERS, INC. City Administrator
5201 EAST RIVER ROAD
SUITE 308 E.J. VAN OVERBEKE
City Clerk
MINNEAPOLIS, MN 55421
Re: Water-related environmental issues for proposed Crestwood
Addition preliminary plat.
Dear Mr. Melcher:
As we discussed during our phone conversation today, there are
several water-related environmental issues that need' to be
addressed during the preliminary plat review and approval-process
for the Crestwood Addition.
As you know, a portion of the Nicols fen lies between the proposed
development and the Minnesota River. This calcareous fen is a
unique type of wetland habitat given special protection under state
law. I discussed with Jeanette Leat, hydrogeologist with the
Minnesota Department of Natural Resources, any precautions related
to the Crestwood Addition that should be taken to protect the fen.
She strongly supported the construction of the stormwater ponding
area in such a way as to maximize infiltration of ponded water into
the shallow aquifer underlying this area. The current two-cell
ponding requirement for Crestwood will more than double the area
covered by ponded water, which will help meet this objective. To
further increase infiltration, the developer should avoid
compaction of the pond bottom or introduction of any fine grained
material that could plug pores in the relatively sandy soils that
underlie the pond. The pond design must also allow access by a
large track-mounted backhoe to the middle of the pond so that the
bottom can be scarified periodically. We discussed several options
to meet this requirement and I will anticipate the submission of
pond design plans that meet this goal. Jeanette has also .been given
a copy of the plans for review and may have other comments as well,
In addition, runoff generated by the proposed development will
discharge to the headwaters of Kennealy Creek, a designated trout
stream. Bruce Gilbertson, Area Fisheries Supervisor with .the
Department of Natural Resources, also favors ponding to treat
runoff from the industrial area and agrees that maximizing the
infiltration of ponded water is essential to reduce thermal impacts
to the stream.
MUNICIPAL CENTER THE LONE OAK TREE MAINTENANCE FACILITY
3830 PILOT KNOB ROAD THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY E COACHMAN POINT
EAGAN. MINNESOTA 55122.1897 EAG AN, MINNESOTA 55122
PHONE: (612) 681-4600 PHONE: (612) 681-4300
FAX: (612) 681-4612 Equal Opportunity/Affirmative Action Employer FAX: (612) 681-4360
TOD: (612) 454.8535 TOO: (612) 454-8535
As far as the water quality pond requirements are concerned, the
Crestwood Addition will need to provide an additional 2 acre-feet
of wet pond volume in the existing pond system within the Silver
Bell parcel. As you have shown on the May 2 site plan, the pond
modification will need to include two cells. The average depth of
the second (lower) cell should be at least 5 feet. The pond design
must also meet the City of Eagan's Standards For Detention Basin
Design (attached).
Please contact me at 681-4300 if you have any questions. I will
look forward to receiving the next set of plans that meets the
above criteria.
Si rely,
Rich Brasch
Water Resources Coordinator
cc. Ken Vraa
John Wingard
Shannon Tyree
Kristi Marnin
• ' STANDARDS FOR DETENTION BASIN DESIGN
WATER QUALITY MANAGEMENT PROGRAM
CITY OF EAGAN
The following standards apply to all detention basin designs, as stated in the City of Eagan
Water Quality Management Plan:
(1) Permanent pool volume should be greater than or equal to the volume of runoff
from a 2.5-inch rainstorm under full projected watershed development. This value
has been derived from design criteria developed under NURP, with a 25% increase
in volume to allow for roughly 25 years or sediment accumulation. In the summer,
St. Paul climate, this sizing rule provides a mean hydraulic residence time of about
15 days.
(2) To promote settling and provide space for sediment accumulation, the mean depth
of the permanent pool (volume/surface area) should be greater than or equal to 4
feet. This constraint may be infeasible for small ponds approx. 2 acre-feet in
volume), where- mean depths of 3--1 feet may be used.
(3) To promote plug flow behavior. the ratio of length to maximum width should be
greater than or equal to 3. This constraint may be infeasible for some site plans or
for small ponds. In such situations. baffles maybe installed to isolate the inflow area
from the remainder of the pond. A desirable alternative (for all pond sizes) is to
construct two separate ponds in series with a total volume equal to that specified
above (1). A staged design would consist of a smaller inflow pond for removal of
coarse particulates followed by a larger. deeper outflow pond. Any length/width
ratio can be used in staged desims.
(4) For safety purposes and to provide suitabie habitat for rooted aquatic plants, an
aquatic bench at least 10 feet in width and and with a slope not steeper than 10 feet
horizontal to 1 foot vertical should extend into the pond from the shoreline at normal
water level.
(5) To provide stability, the side slopes should not be steeper than 3 feet horizontal to
1 foot vertical. Shallower slopes may be appropriate, depending upon soil
engineering properties. Shallower slopes are more feasible for larger ponds.
(6) To prevent development of thermal stratification, loss of oxygen, and nutrient
recycling from bottom sediments, the maximum depth of the permanent pool should
be less than or equal to 10 feet.
Other design features include provision of a shoreline buffer zone and access for
maintenance.
10b:derenwn.026