Title
Resolution to Approve an Agreement with the University of Michigan to construct the Harvard Drain & Nichols Arboretum Improvements Project
Memorandum
Attached for your review and approval is a resolution to authorize an Agreement with the University of Michigan to construct the Harvard Drain & Nichols Arboretum Improvements Project.
The existing storm pipe in Harvard Place, Highland Road and Ridgeway Street currently is undersized, and consequently the pipe surcharges, causing flooding in Harvard Place. The pipe outlets into the Nichols Arboretum where the water has been causing erosion on both city residents’ and University property. To alleviate this condition, the City and the University of Michigan have been cooperating on design and engineering improvements on city right-of-way and University property.
To reduce flooding, increase capacity of the pipe, and slow the storm water velocity before it outlets, the improvements in the city right-of-way include replacing the existing 15 and 12 inch storm sewer with new drop structures, pipe upsizing to 12 and 27 inches in diameter, and pipe slope modifications.
In the Arboretum, improvements include the construction of an infiltration meadow area with stone step-pool structures and drainage channel restoration to promote infiltration of the water into the sandy soils.
The Agreement submitted with this resolution has been reviewed and approved by the University of Michigan.
Staff
Prepared by: Homayoon Pirooz, P.E., Manager, Project Management Unit
Reviewed by: Sue F. McCormick, Public Services Administrator
Approved by: Roger W. Fraser, City Administrator
Body
Whereas, It is beneficial to the environment and the community to improve the storm system to reduce stormwater velocities, reduce erosion and sedimentation, and promote infiltration to replenish groundwater;
Whereas, The stormwater from Harvard Place, Highland Road and Ridgeway Street outlet into the Nichols Arboretum;
Whereas, The Cit...
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