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G12ADING AND SEDIMENT - EROSION
CONTROL PLAN
FOX HOLLOW P.U.D.
OAK PARK HEIGHTS, MINNESOTA
June 9, 2004
Our File No. 5046
STEVENS
ENGINEERS
1656 LIVINGSTONE ROAD
HUDSON, WISCONSIN 54016
www.stevensengineers.com
(715) 386 -5819 (800) 822 -7670 (651) 436 -2075
FAX: (715) 386 -5879
I hereby certify that this specification was prepared by me REVISIONS
or under my direct supervision and that I am a duly Registered 7-20-04 Updated Figures 1 & 2.
Pr essional Engineer under the laws of the State of Minnesota.
JUNE 9, 2004 40921
Scott A. Ward, P.E. Date Reg. No.
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TABLE OF CONTENTS
Page No.
Table of Contents 1
Report 2
Site Plan - Figure 1 5
Erosion Control Plan - Figure 2 6
Erosion Control Details - Figure 3 7
Grading and Sediment- Erosion Control Plan— Fox Hollow PUD, Oak Park Heights, MN 1
INTRODUCTION
Presented in this report is the grading and sediment- erosion control plan for the proposed Fox Hollow PUD
(formally referred as the East Oaks PUD Second Addition) . Condominium and Office Building
Development in the City of Oak Park Heights, Washington County, Minnesota. This report is presented to
the City of Oak Park Heights and the Middle-St. Croix Watershed Management Organization (WMO) for
review, comment and approval. The proposed site is located in the eastern part of the City approximately 0.5
miles east of the Intersection of Highway 36 and Osgood Ave on 60th Street North. The total area of the
property is 2.4 acres.
This plan, in conjunction with the Stormwater Management Plan , satisfies the requirements for a Stormwater
Pollution Prevention Plan (SWPPP) required by the Minnesota Pollution Control Agency (MPCA) for the
General Stormwater Permit for Construction Activity (MN R100001). These documents shall be kept on file
by the City as required under the General Stormwater Permit.
This plan shall be discussed in detail at the preconstruction meeting for this project prior to the start of
construction activities.
GENERAL INFORMATION
1. Figure 1 in this plan shows both the existing and proposed contours. The majority of the scattered tree
will be cleared from the site. Final drainage will be toward the southeast corner of the project site where
the existing storm water pond will be enlarged. The pond will be dug as soon as possible to contain
runoff during construction.
2. A final construction schedule will be discussed with the selected contractor at the preconst ruction
meeting. The Owner of the property has expressed interest in starting construction this summer. The
estimated construction time for the site improvements (not including the buildings is 2 months).
3. The site work contractor will be responsible for all erosion control systems. A contractor will be
approved according as discussed in item 2. The name of the person overseeing this project is the owner
of the property.
Jeff Hause
J.G. Hause Construction
1937 Greeley St. 5
Stillwater, MN 55082
Phone 651.439.0189
4. Temporary erosion control measures include approximately 800 linear feet of silt fence, approximately
1600 square yards of erosion mat, and a rock construction entrance as shown in Figure 2 .
5. Permanent erosion control measures include sod, seed and approximately 20 cubic yards of riprap for the
storm sewer outlets to the pond.
6. A Stormwater Permit for Construction Activity (MN R100001) will be applied for by the Owner once
the project has been awarded to a contractor. A copy of the permit will be kept on record with the
Owner.
7, The 100 -year flood elevation for the proposed storm water pond is 945.4. The finished first floor of all
three (3) buildings is well above this elevation meeting the 2 -foot minimum separation requirement.
Grading and Sediment- Erosion Control Plan— Fox Hollow PUD, Oak Park Heights, MN 2
9. There is no earthwork cut and fill activities taking place in a floodplain or wetland area.
CONSTRUCTION ACTIVITY REQUIREMENTS
1.. Temporary erosion control measures shall be installed prior to the start of construction activities. In
areas where trees are being cleared, the silt fence can be installed immediately after this activity is
complete.
2. Water from dewatering activities for the piping installation and other construction activities shall be
confined in a temporary holding pond. The contractor may wish to construct the permanent pond at the
start of the project to use a temporary pond. The contractor shall then clean out the pond and grade to
specified elevations prior to completing the project.
3. All pavements shall be cleaned on a daily basis.
INSPECTIONS AND MAINTENANCE
1. The Owner will be in charge of routinely inspecting the erosion control systems during construction.
Inspection will be made once every seven (7) days during active construction and within 24 hours after a
rainfall event greater than 0.5 inches in 24 hours.
2. All inspections and maintenance conducted will be recorded and include the following information.
These documents will be retained in the project files.
a. Date and time of inspections;
b. Name of person(s) conducting inspections;
c. Findings of inspections, including recommendations for corrective actions;
d. Corrective actions taken (including dates, times, and party completing maintenance activities);
e. Date and amount of all rainfall events greater than 1/2 inch in 24 hours; and
f. Documentation of changes made to the Stormwater Management Plan or Grading and Sediment -
Erosion Control Plan.
3. Once areas are permanently stabilized, inspections may be reduced to once per month.
4. The Owner will inform the contractor of all problem areas or required repairs to the erosion control
systems. It is then the contractor's responsibility to fix the problem areas. The following specific
maintenance requirements will apply.
a. All silt fence must be repaired, replaced or supplemented wi thin 24 hours when the sediment reaches
1/3 the height of the fence.
b. Remove sediment from permanent ponds or basins within 72 hours when sediment reaches 1/2 the
storage volume.
Grading and Sediment - Erosion Control Plan— Fox Hollow PUD, Oak Park Heights, MN 3
POLLUTION PREVENTION MANAGEMENT MEASURES
1. Store and dispose of all solid waste such as collected sediment, asphalt and concrete millings, floating
debris, paper, plastic, fabric, construction and demolition debris, etc. and hazardous materials such as oil,
gasoline, paint, etc. in accordance with MPCA regulations.
END
c. Remove all deltas or sediment deposited in surface waters or oth er drainage systems and restablize
the areas within seven (7) days of discovery. The contractor is responsible for obtaining all
additional permits required for this activity at no additional expense to the Owner.
d. Sediment tracked onto pavement shall be removed within 24 hours of discovery.
e. The contractor is responsible for the installation, maintenance and removal (where applicable) of all
erosion control systems for the duration of the project and its warranty period.
Grading and Sediment- Erosion Control Plan — Fox Hollow PUD, Oak Park Heights, MN 4
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lests LIVINGSTONE ROAD
HUDSON, WISCONSIN 54018
MIT. STEVE NS ENGIN ERS.0014
051)438-2075 (715)388 -5819
FAX: (715)385 -587 R
SHEET DESCRIPTION
SITE LAYOUT AND
UTILITY PLAN
FOX HOLLOW P.U.O.
OAK PARK HEIGHTS, MINNESOTA
g
REG. a
_____
`6",
---------
6
SCOTT A. WARD
1 HEREBY CERTIFY THAT THIS PLAN WAS PREPARED
BY ME OR UNDER MY DIRECT SUPERVISION AND THAT
1 AM A DULY REGISTERED PROFESSIONAL ENG:NEER
UNDER DIE LAWS OF THE STATE OF MINNESOTA.
40921 OA rE
/EPA
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DATE
FILE NAME
CHECKED BY
DRAWN BY TJS
PR 0..EC T NO. 5046
T
SAW
6/9/04
•
PROJECT ENGINEER SAW
4
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REVISIONS
7/20/04 DETAILS
■
6" MINIMUM DEPTH
1" - 2" WASHED ROCK
18" MINIMUM CUT OFF BERM
TO MINIMIZE RUNOFF FROM SITE
ROCK CONSTRUCTION ENTRANCE
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TAMPED
BACKFILL
WOOD POSTS TO MIN.
4' LONG WITH 2' MINIMUM
DEEP IN GROUND.
FILTER FABRIC
FLOW DIRECTION
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TRENCH WITH EXCAVATED SOIL.
NOTES:
1. MIN. 2 "x2" POST TO BE
SPACED AT A MAX, OF 8'.
2. FILTER FABRIC TO BE
MIRAFI 100 OR EQUAL.
3. POSTS DAMAGED ON
DRIVING SHALL BE
REPLACED,
DETAIL FOR INSTALLATION
OF EROSION FENCE
4. FOR REINFORCED EROSION FENCE
THE POST SHALL BE A MIN. 4 "X4 ", 4 '95 ,
OR STEEL FENCE POSTS DRIVEN TO A
DEPTH OF 2'. POSTS SHALL BE SPACED A
MAX. OF 8', WIRE MESH TO BE STAPLED
W/1" MIN. STAPLES OR WIRE TIES TO POSTS.
ATTACH THE FABRIC TO THE POSTS WITH WIRE
STAPLES OR WOODEN LATH AND NAILS.
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BACKFILL AND COMPACT
EXCAVATE A TRENCH A MINIMUM OF 4" WIDE
AND 6" DEEP TO BURY AND ANCHOR THE GEOTEXTILE
FABRIC AND COMPACT TRENCH WITH EXCAVATED SOIL.
SILT FENCE DETAIL
NOTES
WHERE REINFORCED SILT FENCE IS SPECIFIED,
MINIMUM 14 GAGE WIRE REQUIRED FOLD
FABRIC 3" OVER THE WIRE AND STAPLE OR
PLACE WIRE RINGS ON 12" C.C.
FIGURE 3D
3'
TF
6" MINIMUM DEPTH
1" -- 2" WASHED ROC
18" MINIMU
TO MINIMIZ
EOCK C01