San Martin Blvd Over Riviera Bay Bridge Forcemain & Watermain Relocation Project

Project Overview

The City of St. Petersburg is relocating vital underground utilities near the San Martin Bridge to improve long-term reliability, strengthen storm resilience, and protect local waterways. This work includes relocating a 24-inch sanitary force main and a 12-inch watermain.

This relocation is required due to Pinellas County’s upcoming replacement of the San Martin Bridge over Riviera Bay, which will improve clearance for boat traffic. Since the City’s utilities are currently attached to the bridge, they must be relocated before construction begins.

To minimize disruption to the bay and surrounding neighborhood, the City will use horizontal directional drilling (HDD) beneath Riviera Bay. Additional pipe segments will be installed by open trenching within the public right-of-way along San Martin Boulevard, from Tallahassee Drive to Weedon Drive.

Public Impact

This project will require temporary changes to traffic patterns on and around the San Martin Bridge. To complete the utility relocation safely and efficiently, traffic will be reduced to one lane across the bridge. Temporary traffic signals will be installed to alternate the flow of vehicles in both directions.

Phase 1 of construction will close the southbound travel lane, while Phase 2 will close the northbound lane. Throughout the project, access to homes and driveways will be maintained at all times.

The City understands the inconvenience that construction can cause and is committed to minimizing disruptions, ensuring safety, and keeping the community informed.

Timeline

September 2025 - Construction begins

• Phase 1: Install approximately 1,475 feet of 16-inch watermain (west side of the bridge)
• Phase 2: Install approximately 1,460 feet of 30-inch wastewater force main (east side of the bridge)

March 2026 - Anticipated project completion

Public Input Opportunity

An informational public meeting was held to provide residents with an opportunity to learn more about the project:

Public Meeting
Tuesday, April 29, 2025
Willis S. Johns (Fossil Park) Recreation Center

Contact

For additional information, please contact stpetesanmartinpipelines@gmail.com or call 813-486-0361.