Phase 3 Drainage Project - Outfalls & Basin

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
October 8 2020
Deadline for submission of proposals for the construction of the 5 small but high impact drainage projects.
Completed: Oct 29, 2020
October 29 2020
Utility relocations begin
Completed: Mar 1, 2021
March 1 2021
Drainage pipe installation - 41st Avenue
Completed: Mar 15, 2021
Mid March
Drainage pipe installation - Sparrow DriveDrive
Completed: Apr 1, 2021
Early April
Drainage pipe installation - Forest Trail
Completed: Apr 15, 2021
Mid April
Drainage pipe installation - Cross Lane
Completed: Apr 29, 2021
End of April
Council approves change order to Thomas & Hutton to include bidding and construction oversight of the 30th & 36th Ave Outfall Projects.
Completed: Jul 27, 2021
Jul 27 2021
Bid packet for construction of 30th & 36th Ave Outfall is released to prospective bidders.
Completed: Sep 14, 2021
Sep 14 2021
City holds pre-bid meeting with prospective bidders for the construction of 30th & 36th Ave Outfall Projects.
Completed: Sep 24, 2021
Set 24 2021
Deadline for bids for the construction of the 30th & 36th Avenue Outfall Project.
Completed: Oct 15, 2021
Oct 15 2021
City opened bids for the construction of the 30th and 36th Outfalls
Completed: Nov 10, 2021
Nov 10 2021
City Council approves a contract to Quality Enterprise in the amount of $2.27M
Completed: Nov 17, 2021
Nov 17 2021

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.

The construction of the 30th and 36th Avenue outfalls began in early 2022 and expected completion in 2023. The construction of the drainage improvements to the 41st Avenue outfall is scheduled to begin in the fall/winter of 2023. 

Project Updates

Update - October 2023
Tuesday, October 10, 2023

Phase 3 Drainage - 30th Avenue Outfall

  • Project has been completed.

 

Phase 3 Drainage - 36th Avenue Outfall

  • Work begins October 16th. Road closure scheduled for October 17th. Residents in the area have been notified of upcoming road closure.

 

Phase 3 Drainage - 41st Avenue Outfall

  • South Carolina Office of Resilience is in the process of executing a contract with The Bastion Group. Kick off meeting scheduled for the week of 10/9.

 

Waterway Boulevard Multi-Use Path Elevation Project

  • Staff in process of executing contract with Thomas & Hutton for design, engineering and permitting, as approved by Council on 9/26.

 

Sea Level Rise Adaptation Plan

  • Kickoff meeting held week of 9/25. Seamon Whiteside coordinating stakeholder meetings.

 

Update - September 2023
Tuesday, September 12, 2023

30th Avenue

  • Project complete

36th Avenue (Forest Trail)

  • Work begins the first week in October. Road closure is scheduled for October 4th. The estimated project duration is 8 weeks.
  • See Latest News for road closure updates.

 

41st Avenue

  • Deadline for Bids - 9/14

 

Waterway Boulevard Multi-use Path Elevation Project

  • Two bids received. Staff coordinating with SCEMD for approval of contractor to perform pre-award costs for engineering and permitting. A recommendation for approval of contract will be made at the Council meeting on 9/26/23.

 

Update - August 2023
Tuesday, August 8, 2023

30th Avenue

  • Contractor on site installing tide check valves, tide gates, trash racks and grates on the junction box.


36th Avenue (Forest Trail)

  • Construction to start immediately following Labor Day weekend.

41st Avenue

  • Pre-bid meeting – August 23, 2023. Deadline for bids– August 30, 2023.


Comprehensive Drainage Master Plan

  • Davis & Floyd updating executive summary for report to be completed and distributed.
    Waterway Boulevard Multi-use Path Elevation Project
    RFP for design, permitting, bidding and construction administration is out. Deadline for proposals – August 18, 2023.

Waterway Boulevard Multi-use Path Elevation Project

  • RFP for design, permitting, bidding and construction administration is out. Deadline for proposals – August 18, 2023.
Phase 3 Drainage Update - July 2023
Tuesday, July 11, 2023

Phase 3 Drainage 30th, 36th & 41st Avenue Outfalls 30th Avenue

  • Check valves have been delivered and are on site. Castings and grates are in and waiting for fabrication of miscellaneous items (railings, trash racks, etc.) All installation to be completed at the same time with same crew.


36th Avenue (Forest Trail)

  • Coordination and agreement on conceptual design of junction box complete. Construction of 36th Avenue outfall to start in the fall. 41st Avenue
  • MS4, NPDES, OCRM, USACE & SCDOT permits on hand.
  • Environmental Assessment completed and approval of grant funds for purchase of wetland credits approved
    T&H prepared technical specifications and special provisions for bidding
  • Start of construction planned for fall/winter 2023.


Comprehensive Drainage Master Plan

  • Maintenance review and development regulations review and recommendations in progress
  • Waterway Boulevard Multi-use Path Elevation Project
  • Staff developing Request for Proposals for the City to engage engineering firm to perform pre-award costs for engineering and permitting in accordance with FEMA’s Hazard Mitigation Grant Program specifications.
Phase 3 Drainage Update - June 2023
Tuesday, June 13, 2023

30th Avenue

• Still waiting on delivery of check valves. Castings and grates are in and waiting for fabrication of miscellaneous items (railings, trash racks, etc.) All
installation to be completed at the same time with same crew.

36th Avenue (Forest Trail)

• Coordination and design of junction box still in process. Construction of 36th Avenue outfall to start in the fall.


41st Avenue

• MS4, NPDES, OCRM, USACE & SCDOT permits on hand.
• Terracon coordinating purchase of mitigation credits and Environmental Assessment w/ SCOR
• T&H prepared technical specifications and special provisions for bidding
• Start of construction planned for fall/winter 2023.

Phase 3 Drainage Update -May 2023
Tuesday, May 9, 2023

30th Avenue

• Check valves in final stage of production. Expected to arrive in 2-3 weeks.

36th Avenue (Forest Trail)

• Coordination and design of junction box still in process. Construction of 36th Avenue outfall to start mid-August

41st Avenue

• MS4, NPDES, OCRM & USACE permits on hand. SCDOT encroachment permit still in review.
• Terracon coordinating purchase of mitigation credits and Environmental Assessment w/ SCOR
• T&H prepared technical specifications and special provisions for bidding
• Start of construction planned for end of 2023

Pages