1b. Pioneer Pass: Approve Addendum A and Plans and Specs4 0
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone: 952.227.1180
Fax: 952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.2271130
Fax: 952.227.1110
Public Works
7901 Park Place
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952.227.1125
Fax: 952.227.1110
Web Site
www.ci.chanhassen.mn.us
MEMORANDUM 11
TO: Paul Oehme, Director of Public Works /City Engineer
FROM: Joseph Shamla, Project Engineer
Terry Jeffery, Water Resources C ordinator. �
DATE: September 26, 2011
SUBJ: Pioneer Pass: Approve Addendum A to the Development
Contract; Approve Plans & Specifications for Mass Grading
( Outlots B, C & E)
PROPOSED MOTION
"The City Council approves Addendum A to the Development Contract and
Plans and Specifications for Mass Grading Outlots B, C and E."
City Council approval requires a simple majority vote of the City Council
present.
Upon review of the plans prepared by James R. Hill, Inc. received September 9,
2011,1 have the following comments and recommendations:
GRADING AND DRAINAGE
An overall drainage plan was developed for the entire site initially as Pioneer
Pass. The drainage has not been altered from the original plan. Pond number two
( #2) will be rough graded in this amendment. An as -built of the pond will be
required in the future when the storm sewer is connected to the pond to ensure
that the pond is constructed per the approved plan.
The proposed grading plan includes fill areas of approximately 20 feet. Soils with
fills to these depths can have an issue with settlement if not placed properly. The
applicant shall have a soils engineer monitor the construction to ensure proper
placement and compaction of material.
The storm water pollution prevention plan shall be updated per the current plan.
Proposed driveway grades must be between 2% and 10 %.
The conditions referring to grading on the approved preliminary plat must be
addressed.
According to the grading plan, material must be moved to the parkland across
Bluff Creek Drive. The contractor will be closing the road temporarily to achieve
Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow
Paul Oehme
Pioneer Pass: Approve Addendum A to the DQ
Approve Plans & Specifications for Grading
September 26, 2011
Page 2
this goal. The date and duration of this closure must be approved by the City Engineer.
The security posted for Pioneer Pass can also be used for any issue relating to the grading of
Phase II.
Minor changes are needed to the grading plan. The applicant shall revise the grading plan per
the comments provided by staff (redlines).
WETLAND & EROSION CONTROL
This phase will result in the approved wetland impact. Because of this, it will be necessary to
construct the mitigation area at this time. The applicant must provide a detailed site specific
restoration plan which includes, at a minimum, Items 22 — 37 from the Minnesota Wetland
Conservation Act Replacement Plan: Complete Application Checklist available on the Minnesota
Board of Soil and Water Resources.)
a. Wetlands are in profile and plan view;
b. A detailed planting schedule;
c. A detailed vegetation management plan including intermediate goals;
d. Other elements consistent with the Minnesota Wetland Restoration Guide
available from the MN Board of Soil and Water Resources.
All other conditions of the wetland alteration permit must be met. (Chapter 20, Article VI)
A Landowner Statement and Contractor Responsibility for Work in Wetland and Public Waters
must be provided prior to any grading in Phase 2.
The SWPPP needs to be modified to be specific to this site. The SWPPP must incorporate the
requirements of Part III (Stormwater Discharge Design Requirements), Part IV (Construction
Activity Requirements) and Appendix A for the project. A narrative describing the timing for
the installation of all erosion prevention and sediment control BMPs required in Part III, Part IV
and Appendix A must also be included in the SWPPP.
After grading, the use of silt fence with j- hooks, staggered biorolls, straw wattles, rock logs or
other appropriate BMP shall be installed to break up any run 75 feet or longer. This is to be
shown on the grading and erosion control plan and indicated in the SWPPP.
The plans must show the soils correction area or "temporary blister" area and include additional
BMPs necessary to prevent erosion and sediment deposition from this area.
Signage for the Bluff Creek Overlay District Primary zone shall be installed after the area is
graded as well as in those areas where no grading is needed.
The SWPPP, all modifications and all inspection reports shall be maintained on site.
gAeng \projects \p -s \pioneer pass (fka peterson property) \09 -26 -1 I approve addendum and plans and specs.doex
Paul Oehme
Pioneer Pass: Approve Addendum A to the DC;
Approve Plans & Specifications for Grading
September 26, 2011
Page 3
All stockpile areas shall be indicated on the plan set.
All exposed soil areas must be stabilized as soon as possible to limit soil erosion but in no case
later than seven (7) days after the construction activity in that portion of the site tributary to Bluff
Creek has temporarily or permanently ceased and no later than fourteen (14) days elsewhere.
RETAINING WALLS
There is approximately 750 LF of retaining wall proposed in this Addendum. This retaining wall
is up to approximately 15 feet high. The retaining wall must be designed by an engineer licensed
in the State of Minnesota. A soils engineer must be present during construction to ensure that the
wall is constructed properly. A registered engineer must certify upon completion that it was built
according to the approved plan.
The plans must be revised to provide a connection to a drainage system for the roof down spouts
and sump pumps to prevent the discharge from these items from going over the proposed wall.
The applicant has not chosen a material for the wall at this time. Staff is aware of issues in
Chanhassen of boulder walls greater than 6 feet in height which have failed. The applicant shall
choose either wet or dry cast block approved by MnDOT specifications for the wall material.
Due to the height of the wall, a fence shall be constructed above the wall for safety reasons. Any
area in which the wall height is greater than four feet shall have a fence installed.
The retaining walls constructed under this Addendum to the development contract shall be
maintained by the Homeowners Association.
RECOMMENDED CONDITIONS OF APPROVAL
Staff recommends approval of the Addendum to the Development Contract for Pioneer Pass to
include the grading for Pioneer Pass Phase II subject to the following conditions:
1. A pond as -built will be required when the storm sewer is connected to the pond. This
will ensure the pond is constructed according to the approved plans.
2. The applicant shall have a soils engineer monitor the construction to ensure proper
placement and compaction of material.
3. The storm water pollution prevention plan shall be updated per the current plan.
4. Proposed driveway grades must be between 2% and 10 %.
5. Conditions referring to grading on the approved preliminary plat must be addressed.
6. The date and duration of the Bluff Creek Drive closure for grading purposes must be
approved by the City Engineer.
gAeng \projects \p -s \pioneer pass (fka peterson property) \09 -26 -11 approve addendum and plans and specs.docx
Paul Oehme
Pioneer Pass: Approve Addendum A to the DQ
Approve Plans & Specifications for Grading
September 26, 2011
Page 4
7. The security posted for Pioneer Pass will also be used for any issues relating to the
grading of Phase Il.
The retaining wall must be designed by an engineer licensed in the State of Minnesota. A
soils engineer must be present during construction to ensure that the wall is constructed
properly. A registered engineer must certify upon completion that it was built according
to the approved plan.
9. The plans must be revised to provide a connection to a drainage system for the roof down
spouts and sump pumps to prevent the discharge from these items from going over the
proposed wall.
10. The applicant shall choose either wet or dry cast block approved by MnDOT
specifications for the wall material.
11. Due to the height of the wall, a fence shall be constructed above the wall for safety
reasons. Any area in which the wall height is greater than four feet shall have a fence
installed.
12. The retaining walls constructed under this Addendum to the Development Contract shall
be maintained by the Homeowners Association.
13. The applicant shall revise the grading plan per the comments provided by staff (redlines).
14. This phase will result in the approved wetland impact. Because of this it will be
necessary to construct the mitigation area at this time. The applicant must provide a
detailed site specific restoration plan which includes, at a minimum, items 22 — 37 from
the Minnesota Wetland Conservation Act Replacement Plan: Complete Application
Checklist available on the Minnesota Board of Soil and Water Resources.
a. Wetlands are in profile and plan view;
b. Detailed planting schedule;
c. A detailed vegetation management plan including intermediate goals;
d. Other elements consistent with the Minnesota Wetland Restoration Guide
available from the MN Board of Soil and Water Resources.
15. All other conditions of the wetland alteration permit must be met. (Chapter 20, Article
VI)
16. A Landowner Statement and Contractor Responsibility for Work in Wetland and Public
Waters must be provided prior to any grading in Phase 2.
17. The SWPPP needs to be modified to be specific to this site.
gAeng \projects \p -s \pioneer pass (flea peterson property) \09 -26 -11 approve addendum and plans and specs.doex
Paul Oehme
Pioneer Pass: Approve Addendum A to the DC;
Approve Plans & Specifications for Grading
September 26, 2011
Page 5
a. The SWPPP must incorporate the requirements of Part III (Stormwater Discharge
Design Requirements), Part IV (Construction Activity Requirements) and
Appendix A for the project. A narrative describing the timing for the installation
of all erosion prevention and sediment control BMPs required in Part III, Part IV
and Appendix A must also be included in the SWPPP.
18. After grading, the use of silt fence with j- hooks, staggered biorolls, straw wattles, rock
logs or other appropriate BMP shall be installed to break up any run 75 feet or longer.
This is to be shown on the grading and erosion control plan and indicated in the SWPPP.
19. The plans must show the soils correction area or "temporary blister" area and include
additional BMPs necessary to prevent erosion and sediment deposition from this
area.Signage for the Bluff Creek Overlay District Primary zone shall be installed after
area is graded as well as in those areas where no grading is needed.
20. The SWPPP, all modifications and all inspection reports shall be maintained on site.
21. All stockpile areas shall be indicated on the plan set.
22. All exposed soil areas must be stabilized as soon as possible to limit soil erosion but in no
case later than seven (7) days after the construction activity in that portion of the site
tributary to Bluff Creek has temporarily or permanently ceased and no later than fourteen
(14) days elsewhere.
Attachment
gAeng \projects \p -s \pioneer pass (fka peterson property) \09 -26 -11 approve addendum and plans and specs.docx
CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
ADDENDUM "A"
TO PIONEER PASS
DEVELOPMENT CONTRACT
SPECIAL PROVISIONS
AGREEMENTS dated September 26, 2011, by and between the CITY OF
CHANHASSEN, a Minnesota municipal corporation ( "City "), and THE RYLAND GROUP,
INC., a corporation under the laws of the State of Maryland (the 'Developer ").
1. BACKGROUND. The parties have previously entered into a development contract
for Pioneer Pass dated September 13, 2010 (the "Development Contract "). The Development
Contract was recorded on December 1, 2010 as Carver County Abstract Document No. A529909.
The developer is now requesting amendments to the grading plan and conditions of approvals.
2. EXTENSION OF DEVELOPMENT CONTRACT. The Development Contract
shall remain in full force and effect with the modifications listed in the special conditions below.
3. SPECIAL CONDITIONS. In addition to the terms and conditions outlined in the
development contract, the following amendments shall apply:
a) Plan `B" Grading, Drainage and Erosion Control Plan dated September 13, 2010,
prepared by JR Hill and Associates shall also include Phase 2 Grading, Drainage and Erosion
Control plans dated September 9, 2011, prepared by J.R. Hill and Associates.
b) Paragraph C on Page SP -5 shall be revised to add:
21. A pond as -built will be required when the storm sewer is connected to the
pond. This will ensure the pond is constructed according to the approved plans.
22. The applicant shall have a soils engineer monitor the construction to
ensure proper placement and compaction of material.
23. The storm water pollution prevention plan shall be updated per the current
plan.
24. Proposed driveway grades must be between 2% and 10 %.
25. Conditions referring to grading on the approved preliminary plat must be
addressed.
26. The date and duration of the Bluff Creek Drive closure for grading
purposes must be approved by the City Engineer.
27. The security posted for Pioneer Pass can also be used for any issues
relating to the grading of Phase 2.
28. The applicant shall revise the grading plan per the comments provided by
staff (redlines).
29. The retaining wall must be designed by an engineer licensed in the State
of Minnesota. A soils engineer must be present during construction to ensure that the wall is
constructed properly. A registered engineer must certify upon completion that it was built
according to the approved plan.
30. The plans must be revised to provide a connection to a drainage system for
the roof down spouts and sump pumps to prevent the discharge from these items from going over
the proposed wall.
31. The applicant shall choose either wet or dry cast block approved by
MnDOT specifications for the wall material.
2
32. Due to the height of the wall, a fence shall be constructed above the wall
for safety reasons. Any area in which the wall height is greater than four feet shall have a fence
installed.
33. The retaining walls constructed under this Addendum to the Development
Contract shall be maintained by the Homeowners Association.
c) Paragraph D on Page SP -7 shall be revised to add:
15. Phase 2 grading will result in the approved wetland impact. Because of
this, it will be necessary to construct the mitigation area at this time. The applicant must provide
a detailed site specific restoration plan which includes, at a minimum, Items 22 — 37 from the
Minnesota Wetland Conservation Act Replacement Plan: Complete Application Checklist
available on the Minnesota Board of Soil and Water Resources.
a. Wetlands are in profile and plan view;
b. A detailed planting schedule;
C. A detailed vegetation management plan including intermediate
goals;
d. Other elements consistent with the Minnesota Wetland Restoration
Guide available from the MN Board of Soil and Water Resources.
16. All other conditions of the wetland alteration permit must be met. (Chapter
20, Article VI)
17. A Landowner Statement and Contractor Responsibility for Work in
Wetland and Public Waters must be provided prior to any grading in Phase 2.
3
18. After grading, the use of silt fence with j- hooks, staggered biorolls, straw
wattles, rock logs or other appropriate BMP shall be installed to break up any run 75 feet or
longer. This is to be shown on the grading and erosion control plan and indicated in the SWPPP.
19. The plans must show the soils correction area or "temporary blister" area
and include additional BMPs necessary to prevent erosion and sediment deposition from this
area.
20. Signage for Bluff Creek Overlay District Primary zone shall be installed
after area is graded as well as in those areas where no grading is needed.
21. The SWPPP, all modifications and all inspection reports shall be
maintained on site.
22. All stockpile areas shall be indicated on the plan set.
23. All exposed soil areas must be stabilized as soon as possible to limit soil
erosion but in no case later than seven (7) days after the construction activity in that portion of
the site tributary to Bluff Creek has temporarily or permanently ceased and no later than fourteen
(14) days elsewhere.
4. RECORDING. The Development Contract and this Addendum "A" shall be
recorded against Outlots B, C and E in Pioneer Pass.
IN WITNESS WHEREOF this Addendum "A" was executed by the parties the day and
year first above written.
CITY OF CHANHASSEN
Thomas A. Furlong, Mayor
(SEAL)
mere
Todd Gerhardt, City Manager
4
DEVELOPER:
THE RYLAND GROUP, INC.
Printed Name:
Title:
STATE OF MINNESOTA )
ss.
COUNTY OF CARVER )
The foregoing instrument was acknowledged before me this day of ,
2011, by Thomas A. Furlong and by Todd Gerhardt, respectively the Mayor and City Manager of
the City of Chanhassen, a Minnesota municipal corporation, on behalf of the corporation and
pursuant to the authority granted by its City Council.
Notary Public
STATE OF MINNESOTA )
ss.
COUNTY OF )
The foregoing instrument was acknowledged before me this day of
, 2011, by , the
of The Ryland Group, Inc., a Corporation under the laws of the State of Maryland,
on behalf of the corporation.
Drafted by:
City of Chanhassen
7700 Market Boulevard
P. O. Box 147
Chanhassen, MN 55317
(952) 227 -1100
5
MORTGAGE HOLDER CONSENT
TO
DEVELOPMENT CONTRACT
which holds a mortgage on the subject property, the development of which is governed by the
foregoing Development Contract, agrees that the Development Contract shall remain in full force
and effect even if it forecloses on its mortgage.
Dated this day of , 20_.
STATE OF MINNESOTA )
COUNTY OF
( ss.
The foregoing instrument was acknowledged before me this day of ,
20_, by
NOTARY PUBLIC
rel
FEE OWNER CONSENT
TO
DEVELOPMENT CONTRACT
fee owners of all or part of the subject property, the development of which is governed by the
foregoing Development Contract, affirm and consent to the provisions thereof and agree to be
bound by the provisions as the same may apply to that portion of the subject property owned by
them.
Dated this day of , 20_
STATE OF MINNESOTA )
COUNTY OF )
( ss.
The foregoing instrument was acknowledged before me this day of
20_, by
NOTARY PUBLIC
DRAFTED BY:
City of Chanhassen
7700 Market Boulevard
P.O. Box 147
Chanhassen, MN 55317
(952) 227 -1100
g: \eng \dc \p -s \pioneer pass addendum a.doc
7