How to bid on Yorkshire Park Interceptor Upgrade for Upper Occoquan Service Authority

What the agency is buying

The Upper Occoquan Service Authority (UOSA) is seeking a contractor for the Yorkshire Park Interceptor Upgrade (IFB 27-04). This project involves replacing the existing sanitary interceptor from Old Centreville Road to the Flat Branch Pump Station, located along the Bull Run River in Northern Virginia.

The work includes removing the old sanitary sewer and installing a new sewer main. It also requires setting up a sanitary bypass system and performing work across four stream crossings. This is a significant infrastructure project for firms specializing in utility construction.

Key dates and deadlines

This solicitation was published on August 05, 2026. All responses must be submitted by the deadline of September 08, 2026, at 10:00 AM ET. It is important to submit your bid before this exact time, as late submissions are typically not accepted.

Who this opportunity suits

This opportunity is suitable for construction firms with expertise in sanitary sewer replacement, utility infrastructure, and working in environmentally sensitive areas, particularly those involving stream crossings. Companies with experience in large-scale piping projects and bypass systems will find this relevant. The project falls under the construction category.

How to respond

To access the full specifications and drawings, you must contact [email protected]. The solicitation, identified as 125753, is posted on eVA, Virginia's eProcurement portal. You can view the posting publicly without an account.

To submit a response, you will need to sign in with a free eVA vendor account. Ensure you have an active account and are logged in before the submission deadline.

Tips for a competitive response

Thoroughly review all provided specifications and drawings obtained from [email protected] to understand the full scope and technical requirements. Pay close attention to the details regarding the sanitary bypass system and the four stream crossings, as these often require specialized planning and execution.

Ensure your bid clearly demonstrates your firm's experience with similar projects, especially those involving sewer main replacement and work near waterways. Provide a detailed project plan that addresses potential challenges and outlines your approach to safety and environmental compliance. Double-check all pricing and ensure your submission is complete and accurate before the deadline.