Subaqueous Water Main Replacement – Pass-A-Grille to Tierra Verde
Project ID
006423A
Project Location
Intercoastal water way between Pass-a-Grille Beach at 9th Avenue & Pass-A-Grille Way, and Pine Key at 8th Avenue North & 6th Street West.
Project Status
Study: In progress
Project overview
The existing 16-inch cast iron water main running under the intercoastal waterway between Pass-A-Grille Beach and Pine Key in Tierra Verde is nearing the end of its expected lifespan. Using subsurface directional drilling, this project will replace the approximately 2,900 feet of the old main with one in the same diameter made of update materials. The existing line is currently resting on the seafloor and will be removed.
As this project involves a submerged pipeline, there will be survey, construction, and support watercraft operating in the Pass-A-Grille Channel throughout the preparation and construction phases. This may affect boating traffic patterns in the area.
Project Goals
- Replace the aging cast iron water main
- Reduce the risk of line failures and subsequent service interruptions
- Improve seabed health
Project Location

This project is located in the intercoastal waterway between Pass-A-Grille Beach at 9th Avenue & Pass-A-Grille Way and Pine Key at 8th Avenue North and 6th Street West.
Project Funding
This project is funded through Pinellas County’s Capital Improvements Program (CIP) Water Fund
Anticipated Project Timeline
Phase | Anticipated Start | Anticipated Completion |
Survey and Mapping | Mid-2025 | Late 2025 |
Design | Mid-2026 | Early 2027 |
Construction | Early 2027 | Mid-2028 |
Contact Us
William “Bill” Peters
Project Manager
Pinellas County Utilities
(727) 464-8435
WPeters@Pinellas.gov