Award Information

STAFF REPORT

Department: Public Works

Submitted By: Dennis Roland Meeting Date: June 26, 2023

AGENDA ITEM:

Request for Proposal 23-109: Log Cabin Park Stormwater Mitigation Design Services Consideration of approval of the award of RFP 23-109 to Rummel, Klepper and Kahl, LLP (RK&K) for the performance of the Log Cabin Park Stormwater Mitigation Design Services in an amount not to exceed $154,065.00 and to authorize the Mayor to execute all necessary documents.

STAFF RECOMMENDATION:

Approve the award of RFP 23-109 to Rummel, Klepper and Kahl, LLP (RK&K) for the performance of the Log Cabin Park Stormwater Mitigation Design Services in an amount not to exceed $154,065.00 and authorize the Mayor to execute all necessary documents.

BUDGET & PROCUREMENT:

BUDGETED ITEM: YES FISCAL IMPACT: YES

INCLUDED IN CURRENT FY CPTL BUDGET: YES INCLUDED IN CURRENT FY OPRT. BUDGET: NO

TOTAL PROJECT COST: $154,065.00

APPROPRIATIONS:

ACCOUNT TITLE/NUMBER DOLLAR AMOUNT

SW Pipe and Structure R&M / 30241100541430C1308 $154,065.00

EXTERNAL FUNDING SOURCES:

ACCOUNT TITLE/NUMBER DOLLAR AMOUNT

N/A $0.00

ITEM DESCRIPTION:

The award of this request for proposals is for design services for one or more stormwater management facilities in a manner that augments the capture and infiltration or storage of stormwater on the Log Cabin Park property. While the primary goal is an increase in overall stormwater capture, the project aesthetics and design will align with the existing community facilities and planned community use. A tributary to Foe Killer Creek flows through the Log Cabin Park and is upstream of the Meadow Brooks/ Milton Estates neighborhood, which suffers from nuisance flooding. The goal is to capture and infiltrate or retain stormwater within the city-owned property in combination with the existing and future park amenities. The Consultant will perform engineering services including, but not limited to, HEC-HMS hydrologic modeling, HEC-RAS hydraulic modeling, final design of one or more stormwater management facilities, cost estimation for construction, permitting, and development of an operations and maintenance plan. The options identified in the assessment will be presented to the city staff and the Consultant will then develop design drawings for the preferred alternative. In addition to the stormwater management facilities, the project design will integrate pedestrian connectivity, compliant with ADA standards, to Marjean Way and Milton Avenue and include ADA-compliant parking spaces.

A scoping document was prepared by the Public Works Department and a request for proposals was issued on March 2nd, 2023. A total of five submissions were received on March 30th, 2023. Staff from the Public Works Department evaluated and scored the proposals based on the designs team work plan / project schedule / staff qualifications (40%),relevant experience / past references (30%),local vendor preference (3%), and cost proposal (27%). The final scoring for the four proposals was:

RK&K 89.33 pts. $154,065.00 Columbia Engineering 74.72 pts. $163,863.75 Croy Engineering 72.43 pts. $165,740.00 Geosyntec Consultants 70.80 pts. $174,781.00 Tetra Tech 51.12 pts. $252,873.00

RK&K is an experienced design firm that has worked on similar elements throughout the Southeast and Georgia, including Heritage Park stormwater retrofit in Chattanooga TN., Shannon Way Submerged Gravel Wetland for Gwinnett County, GA. , Lanier Filter Plant Stormwater Master Plan in Gwinnett County, GA. Staff reached out to references provided and RK&K recieived great remarks regarding project schedule, innovation, and professionalism.

Once a contract Council approval is received and necessary documents executed, design may begin immediately. The anticipated completion date is 32 weeks from notice to proceed. Attached is an exhibit depicting the site and possible improvements. The goal of the project is to provide stormwater enhancements to downstream by detaining as much runof as possible as well as provide pedetrain connectivity to Milton Ave. Specific improvements and elements to the project will come about through the design process.

ALTERNATIVES:

Do not approve Log Cabin Stormwater Mitigation Design Services.

ATTACHMENTS:

1. 23-109 RK&K Design Log Cabin Stormwater Contract

2. City RFP Docs

3. RKK Proposal Docs

4. Log Cabin Site Exhibit