Project Summary
Current Phase: Planning
Sponsor Project Manager: Lu Zhang, Transportation & Environmental Services
Managing Project Manager: Anup Gautam, Project Implementation
Project Description
The Old Town Combined Sewer System Rehabilitation Small Diameter Mainlines and Manholes project provides for inspection and rehabilitation of small diameter (36 inches and below) sewer mains and manholes in the City's Old Town/ Combined Sewer System area. The work is being done as part of the City's Combined Sewer Assessment and Rehabilitation program to preserve the integrity and extend the useful life of the sewer system.
The project consists of three phases, with the planning/ inspection phase to be completed by summer 2024. The design and construction phases are anticipated to begin late 2024 and early 2026, respectively.
Project Funding
Project Budget
Total Budget: 15,348,700
- Planning: $7,023,700 (including inspection of large diameter sewer mains and City-owned portions of laterals to be rehabilitated under separate CIP projects)
- Design: $225,000
- Construction: $8,100,000
Funding Breakdown
This project is funding using Sanitary Sewer enterprise Fund Revenues and is programmed in the City's Capital Improvement Program.
Project Schedule
Planning: Spring 2019 - Summer 2024
Design: Fall 2024 - Winter 2025
Construction: Spring 2026
Planning Phase
Planning Overview
- Field Inspection/ Condition Assessment - Inspected small diameter sewer mains and structures, (manholes, inlets, and catch basins) using pole camera and CCTV camera per National Association of Sewer Service Companies (NASSCO) guidelines to document structural and operation and maintenance (O&M) conditions of each asset.
- Rehabilitation Recommendation - Reviewed inspection reports and photos to determine sewer assets requiring rehabilitation and proper rehabilitation technology.
- Cost Estimate - A planning level cost estimate was performed for design and construction services.
Planning Public Outreach
Public notification (project sign and door hangar) of the inspection work was conducted throughout the planning phase.
Contact
Lu Zhang
Civil Engineer IV
City of Alexandria, Virginia
T&ES/ Sanitary Infrastructure Division
(703) 746-4289
Lu.zhang@alexandriava.gov