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Waterway Blvd Multi-use Path Elevation

The Waterway Boulevard Multi-Use Path Elevation Project is a strategic infrastructure investment that enhances both mobility and flood protection along a critical corridor on Isle of Palms.

By raising the pathway to a more resilient elevation, the project supports reliable, year-round use while contributing to the City’s broader efforts to mitigate flooding and strengthen coastal resilience.

The December 2023 nor’easter serves as the project’s benchmark storm. Based on the project design, the elevated path will prevent water from the Intracoastal Waterway from flooding the homes located inland of the barrier during a similar event.

This project will protect the properties highlighted in yellow and blue from a similar storm coming from the waterway.

Color coded map

Phase 1 - Complete

New berms were installed on the golf course to serve as a flood barrier, providing enhanced protection against extreme tides, storm surge and rising sea levels. Though the work is largely invisible, blending seamlessly into the surrounding golf course and grassy areas, it significantly strengthens flood protection for the multi-use path and homes in the neighborhood.

Phase 2 - Wrapping Up

Designed to function as a dual-purpose asset, the elevated path not only improves safety and accessibility for pedestrians and cyclists, but also serves as a flood barrier that helps reduce the impacts of tidal flooding on surrounding neighborhoods. 

In addition to raising pathways, the work includes widening the Waterway Blvd sidewalk to 8 feet in most areas, accommodating walkers and bikers, as well as installing check-valves to prevent tidal back flow.

The Bastion Group is currently on site and has completed all utility relocations. The project was delayed several weeks due to conflicts with utility services, but is moving again.

Phase 3 - Upcoming

The third and final phase will address two gaps in the barrier near 3607-3615 Waterway Blvd and Firestation #2. The City is currently analyzing alternatives. 
Phase 3 will finish the continuous flood barrier made up of a combination of golf cart paths, berms and sidewalks, to mitigate flooding of the surrounding neighborhoods.

Updates

August 26, 2026 – The Bastion Group is on site and working and has completed all utility relocations. The project has been delayed several weeks due to conflicts with AT&T utilities and their coordination with SCDOT. Future change orders are expected to reduce cost for eliminating sod, unnecessary driveway replacements, and work at Dewees driveway; but increased costs for unexpected utility...
August 10, 2026 – The crew should be finishing up drainage around 32nd Avenue while the utility contractor finishes utility offsets at Sparrow Drive and 3605 Waterway Blvd in the next week or so. As the utility offsets are completed, the drainage contractor will work on finishing the drainage and pathway in the same areas. We’re still waiting on AT&T to relocate their utilities around 32nd Avenue...
August 3, 2026 – While attempting to install the C8 structure on Saturday (08/01), The Bastion Group encountered groundwater issues. As a safety precaution, they have extended the 32nd Avenue closure and barricades while the excavation remains open. They will have additional pumps onsite Monday (08/03) to control the groundwater and complete the structure installation.
Paved path
July 14, 2026 – Significant progress has been made. Pathway paving is complete from 21st to 29th Avenues. Demolition of the original path is complete from 29th Ave to Timber Ln, and the original path remains from Timber Ln to 41st Ave. Good news for walkers and cyclists: The majority of the pathway will remain open throughout the paving process. The compacted gravel will serve as a temporary...
A digger digging up the existing asphalt sidewalk
April 23, 2026 - Pathway construction is underway. The contractor is working from 21st to 30th Avenue this week, currently demolishing the existing sidewalk at 21st & Waterway. The pathway will remain open for walking and biking during the paving process — a compacted gravel surface will be in place initially until final paving is complete.
Waterway Blvd construction
April 7, 2026 – New drainage has been installed at 22nd Avenue, and a swale has been graded in front of 2200 & 2202 Waterway Blvd to improve water flow through the new drainage system. The City has also been coordinating a cleaning of the outfall pipes as part of this work. The contractor has moved to 23rd Avenue and is awaiting permits to cut the road. Over the next couple of weeks, work will...