Phase 3 Drainage Project - Outfalls & Basin

Milestone timeline:

City Council tasks the Planning Commission with developing a strategy to address drainage problems.
Completed: Aug 22, 2017
2017
Planning Commission begins discussing the issues and meeting with experts regarding next steps.
Completed: Sep 20, 2017
September 20, 2017
Planning Commission concludes that the next stormwater priority should be to improve the outfalls between 30th and 41st Avenues.
Completed: May 9, 2018
May 9, 2018
After interviewing several firms the Planning Commission recommends that City Council Enter into an agreement with Thomas and Hutton.
Completed: Oct 11, 2018
October 11, 2018
City Council approves award of a contract to Thomas & Hutton in the amount of $100,800 for surveying, needs assessment and conceptual design of Phase III Drainage Project.
Completed: Nov 27, 2018
November 27, 2018
City Council approves a proposal from Thomas & Hutton for small but high impact drainage projects in the basin along the Phase 3 Drainage project area.
Completed: Mar 26, 2019
March 26, 2019
City staff presents proposal to improve five (5) drainage deficient areas located on the basin between 30th and 41st Avenue.
Completed: Jul 23, 2019
July 23, 2019
City Council approves change order from Thomas & Hutton for small but high impact drainage projects in Phase 3 and issues approval of design, engineering, and permitting of Phase 3 Drainage Project.
Completed: Aug 27, 2019
August 27, 2019
City Council approves proposal in the amount of $18,900 for a conceptual assessment of the elevation of the Waterway Boulevard path to provide added protection from rising tidal waters.
Completed: Jun 23, 2020
June 23, 2020
City Council approves FY21 budget including funding for the small but high impact drainage projects and construction of the Phase 3 Drainage Project.
Completed: Jun 23, 2020
June 23, 2020
City Council approves a change order in the amount of $30,000 for Thomas & Hutton to conduct bidding and construction administration services for the small but high impact drainage projects.
Completed: Jul 28, 2020
July 28, 2020
The City submits a grant application to the Rural Infrastruction Authority for grant funds towards the construction of Phase 3 Drainage Project.
Completed: Sep 14, 2020
September 14, 2020
The City advertises RFB 2020-06 seeking bids for the construction of the small but high impact drainage projects.
Completed: Sep 27, 2020
September 27, 2020
City staff will hold a pre-bid meeting with interested bidders to provide an overview of the project and answer questions.
Completed: Oct 8, 2020
Oct 8 2020
Deadline for submission of proposals for the construction of the 5 small but high impact drainage projects.
Completed: Oct 29, 2020
Oct 29 2020

The City has initiated the third phase of a project to improve storm water and tidal drainage across the island. This project is intended to make significant drainage improvements to the 30th, 36th and 41st Avenue outfalls which will improve conditions on the amount of standing water events experienced by residents and property owners. The project began in 2017 when City Council tasked the Planning Commission with developing a strategy to address drainage problems. As part of the project, smaller but impactful drainage improvement projects along the basin will also be addressed. These are located at Sparrow Drive, Forest Trail, Cross Lane, 32nd Avenue and 41st Avenue.

Project Updates

Phase 3 Drainage during April 12, 2021 Public Works Committee Meeting
Monday, April 12, 2021

Thomas and Hutton presented the powerpoint document linked here to the Public Works Committee on April 12, 2021. The full video of the meeting is available below.

 

Thomas and Hutton Presentation during November 5, 2020 Public Works Committee Meeting
Thursday, November 5, 2020

During the regular Public Works Committee meeting held on August 5, 2020, Thomas & Hutton gave a comprehensive update on the status of the Phase 3 Drainage project, the small but high impact projects located at Sparrow Drive, Forest Trail, Cross Lane, 32nd Avenue and 41st Avenue and the Waterway Boulevard path elevation project. Watch the meeting below:

 

The documents presented by Thomas and Hutton during the meeting are available here.

Request for Bids Opened
Wednesday, September 23, 2020

The City of Isle of Palms has opened a Request for Bids (RFB 2020-06) for Phase 3 Drainage Improvement Project. The deadline for bids is October 29, 2020 at 2:00 p. m.. There is a mandatory pre-bid meeting on October 8, 2020 at 2:00 p. m. at City Hall. The full RFB packet and specifications are available here.

City staff presents proposal to improve five drainage deficient areas
Tuesday, July 23, 2019

City staff presents proposal from Thomas and Hutton to improve five (5) drainage deficient areas in the outfall basin as part of the small but high impact drainage project. The presentation that shows these areas is available here.

City Council Approves Award of Contract to Thomas & Hutton
Tuesday, November 27, 2018

City Council approves award of a contract for Thomas & Hutton in the amount of $100,800 to conduct surveying, needs assessment and conceptual design of Phase III Drainage Project, which involves the improvement to three (3) of the City’s major outfalls located at 30th, 36th and 41st Avenue outfalls. The conceptual design is available here.