Title
A RESOLUTION AUTHORIZING THE CITY MANAGER TO ENTER INTO A PROFESSIONAL SERVICES CONTRACT WITH CHAGRIN VALLEY ENGINEERING, LTD. FOR THE DESIGN OF THE DARROW ROAD PARK STORM WATER MANAGEMENT POND, PHASE 1.
Brief Description: This project includes the design of a new storm water management pond inside Darrow Park to help alleviate flood flows to downstream properties off Tamarisk and Lascala Drive at a cost not to exceed $135,857.70, which includes a 10% contingency.
Body
Legislative History
None.
Purpose & Explanation
This project was identified in a smaller, “neighborhood” storm water study conducted in 2024-2025. Next year, culverts under Edgeview Drive are scheduled for upsizing to alleviate flooding to properties on Edgeview Drive. A new storm water management pond inside Darrow Park is needed to alleviate flood flows to downstream properties off Tamarisk and Lascala Drives.
Staff presented the concept plan to the City’s Parks Board in April to gain concurrence on this project an also alert the Board to a future, larger storm water management facility inside Darrow Park. This second pond project, or phase 2 project, is anticipated in the future and is being currently evaluated as part of the Tinkers Creek Watershed Study.
Design proposals for this project were requested of five (5) engineering design firms. (GPD Group, Chagrin Valley Engineering (CVE), Osborn Engineering, EDG, and ms Consultants) of which four (4) responded. Staff reviewed and scored each proposal based upon major factors including previous storm modeling experience, experience with the City, project understanding cost and other factors. Staff unanimously ranked GPD and CVE as the top consultants. After reviewing the proposals and further refining the scope of services, the recommended consultant and negotiated fee is CVE at a total cost of $115,796. Staff would also like to include “if-authorized” items totaling $7,711.00 for geotechnical, bidding assistance and construction administration. Below are the proposals received along with their cost:
Firm Fee
1. Chagrin Valley Engineering $115,796.00
2. GPD Group $139,050.32
3. Osborn Engineering $142,057.00
4. ms Consultants $204,124.00
As with other professional services contracts we are requesting a contingency to handle any minor changes in the scope of services that may occur during the course of the study. For this contract we are requesting $12,350.70 bringing the total contract amount to $135,857.70 ($115,796.00 base fee + $7,711 if-authorized + $12,350.70 contingency = $135,857.70)
For considerations in excess of this amount, we will return to the City Council for any additional funds necessary to correct or adjust funding needs.
Legal Authority for Proposed Legislation
Pursuant to Charter Section 6.04:
Competitively bid and advertised for two consecutive weeks
Joint or Cooperative Purchase Program
X Professional Services
Other
Fiscal Impact
X Currently Budgeted ($950,000 (Design & Construction) - 504-5950 Fund)
Supplemental Appropriation Required
Appropriation Not Required
Does this legislation require use of an emergency clause?
Yes
X No
Recommendation
Suggested Action
Staff recommends City Council approve this resolution authorizing the City Manager to enter into a professional services contract with CVE for design services for the Darrow Road Park Storm Water Management Pond, Phase 1.
Submitted by,
Thomas J. Sheridan, City Manager
Brian Griffith, Assistant City Manager
Bradley S. Kosco, PE, PS, City Engineer
David Rapp, PE, PS, Assistant City Engineer