HomeMy WebLinkAbout2003-03-28 BRAA Ltr to OPH Re Grading Plans & Specs ReviewMarch 28, 2003
Bonestroo, Rosene, Anderlik and Associates. Inc. is ar " ' Action /Equal Opportunity Employer
and Employee Owned
Principals: Otto G. Bonestroo, RE, • Marvin L. Sorvala, P.E. Glenn R. Cook, P.E. x Robert G. Schunicht, P.E.
Jerry A. Bourdon. P.E. x Mark A. Hanson, RE.
Senior Consultants: Robert W. Rosene, P.E. - Joseph C. Anderlik, PE; e Richard E. Turner, RE. ■ Susan M. Eberlin, C.P.A.
Associate Principals: Keith A. Gordon, P.E. - R -obert R. Pfefferle, RE, x Richard W. Foster, RE. x David D. Loskota, PE,
Michael T. Rautmann, PE, x Ted X. Field, RE. ■ Kenneth P Anderson, P.E. = Mark R. Rolf s, RE. ■ David A. Bonestroo, M.B.A.
Sidney P Williamson, P.E., L.S. • Agnes M. Ring, M.B.A. Q Allan Rick Schmidt, P.E. - Thornas W. Peterson, P.E. ■
James R. Maland, RE. * Miles B. Jensen, PE. , L. Phillip Gravel III, RE. • Daniel J. Edgerton, PE. ■ Ismael Martinez, P.E, -
Thomas A. Syfko, RE. x Sheldon J. Johnson x Dale A. Grove, PE. x Thomas A. Roushar, RE. , Robert J. Devery, PE.
Offices: St. Paul, St. Cloud. Rochester and Willmar, MN ■ Mif► o,�fl. -
-�. ► I�X _
Website: www.bonestroo.com
AIR 9n03
Ms. Judy Holst
Actin g y Cit Administrator
City of Oak Park Heights
14168 Oak Park Blvd., P.' O. Box 2007
Oak Park Heights, MN 55082-2007
n S q uar r . -
Grading Plans & Specifications Review
BRA File No. 55-03 -000
Dear Judy:
We have reviewed the grading and erosion control plans ' and specifications for the proposed
Mclean Square development (Boutwell's Landing — .Phase :�) as submitted by Folz, Freeman,
Erickson Inc. and have the following "comments and./or recommendations for your consideration:
E xistinR Conditions & Demo flan:
1, The City Arborist should commentton the Existing Conditions & Demo. Flan (Sheet C l .0).
Erosion Control Plan:
As part of enhancing our erosion & sediment control and inspection services, our company has a
team in our water & Natural Resources Group that are Certified Erosion &. Sediment Control
Specialists. They review proposed development's erosion and sediment control plans. The
following comments are a combination of our review processes:
- � 1��1 7�� � 1�T71 L+. r7 r1�F:��r'7C1.'- It411 II
7ff� { I;++I -ct - re%r- t^LTY: "rr 1r�ON^ + ;e ;re•
...r r 14..E 3.V�1 �./J.AAt:;� 4�11�...L .L �.L LJ ►/ �.i+k.L a.s. �+..a 4.IV1Ji to AA"3 -'CL LL �. L. i.�I.I .k V-1.L L! 1Y t.i.LJ F #.-.p �� 4L LJ �.�+i -1j �
Add at the south and east sides of Pond 3. .
Add at the southeast corner of Unit 41 (connect t wo ends shown).
Should completely surround Pond 4, with the exception of the south end.
Add/connect on the east side of Units 7 and 8.
3. Specify the MnDOT category for the erosion control (wood fiber) blanket to be used. A
minimum of Category 3 blanket is recommended.
4. Specify the staple pattern for installed blanket in slopes C -aid channels.
5. Specify the geotextile fabric type (suggest MnDOT 3 Class 1V) under riprap -lined
channels, rock construction entrances, and any rock usc as energy dissipation.
6. Specify the maintenance requirements for rock consti entrances.
7. Specify the treatment of stockpiles both on sito (Units 31 -- 35) and off site (North side of
58 th Street North) for sediment control on the Erosion Control Plan.
2335 West Highway 36 a 5t. Paull, MN 55113 a 651 - 636--4600 a Fax: 651 - 636 -1311
8. Specify how stockpiles are to be temporarily covered or seeded if left undisturbed for more
than 7 days at any given time during the construction project.
ill e required for hauling excess material to be 9. City approval w b q g stockpiled across 58 Street p
North. We also recommend a security deposit be retained for possible damage to the existing
street and curb & gutter on 58 Street North as part of this process.
10. Include a note on the Erosion Control Plan indicating that 15' buffers plus 20' setback limits
are to be maintained for all existing wetlands.
Grading Plan:
11. Slop e grading and silt fence installation will be occurring on the township parcel to the east.
We recommend verification of the owner's consent /approval.
12. The actual emergency over flow (EOF) route for Pond 3 will be out of the catch basins in
Nolan Parkway at station 14+99.58. As such; an EOF drainage swale needs to be better
defined to the southeast etween Units 40 and and shown on the grading , plan.
13. The 100 -year HWE of Pond 7 is 939.9 and is approximately only 10 feet from the backdoors
of the proposed townhomes along Nolan Avenue North (McKean West). As such, the
proposed EOF at elevation 941.0 to the south needs to be clearly defined, and the street curb
& gutter and boulevard kept below this elevation. ,
Storm Sewer Plan:
14. Include a note (on Sheet C4.0 and/or C5.0) indicating that exact locations and elevations of
the two 16" steel casings for salutary sewer and water main under the Conspan arch bridge
shall be verified with the City Engineer prior to their placing. 0,40N
Brid e and Retainin Walls:
15. The retaining wall on the south side of Nolan Parkway North adjacent to the pathway is up to
20 feet in height. Some type of protective handrail will be required on top of this wall (as
well as the three other wing walls for the bridge /culvert). These should be shown the
Conspan bridge details (Sheet C5.0).
16. The design and construction of the proposed bridge and retaining walls adjacent to storm
water ponds or internal trails are the responsibility of the developer's engineer. We will
require deiailed design shop drawings and " calculations be submitted for our review and
approval prior to their construction.
Sincerely,
BONESTROO, ROSENE, ANDERLIK &ASSOCIATES INC
M. ostler
Dennis , P.E.
cc: Jay Johnson, Public Works Director
Jim Butler, Building official
Scott Richards, City Planner
Mark Vierling, City Attorney
Kathy Widin, City Arborist
Todd A. Erickson — Folz, Freeman, Erickson, Inc.
DMP, DDH, File _ Bonestroo & Associates
I{:1551aIdIMcKean Square - Grading & Erosion Control Plans Review_3- 28- 03.doc