Valley Drive Storm Drain Improvements

Storm sewer system improvements will be made along Valley Drive and Crestwood Drive to reduce neighborhood flooding.
Page updated on Oct 9, 2024 at 7:03 PM
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Project Summary

Phase: Design

Status: Active

Location: North Ridge/Rosemont

Managing Dept.: Project Implementation

Sponsor Dept.: Transportation & Environmental Services

Map of Alexandria indicating the location of the Valley Drive Storm Drain Improvements project.
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Project Description

The Valley Drive Storm Drain Improvement project will reduce flood risk for homes within Valley Drive, Crestwood Drive, Summit Avenue, and Dogwood Drive by improving the local drainage system and capturing floodwater before it accumulates in low-lying areas. The primary task is to relocate the current storm pipe to align with the existing Valley Drive right-of-way. A new storm pipe will be installed along Crestwood Drive to connect with the structure at the intersection with Valley Drive. New curb inlets and manholes will also be installed along Crestwood Drive and Summit Avenue to increase capacity. The City will also consider realigning storm drains where necessary.

 

Project Background

The City has been experiencing widespread flooding due to an increase in high-intensity rainfall events, which are attributed to climate change-induced storms. As a result, residents of Valley Drive have been facing frequent localized flooding. Several residents have reported in-home flooding because the current curb inlets are unable to capture the excess water. These frequent flooding incidents support the findings from the City of Alexandria’s Storm Sewer Capacity Analysis (CASSCA). The analysis indicates that the storm sewer networks within the project area lack adequate capacity to manage the intense storm events of recent years. This increased flooding is attributed to old infrastructure, the design criteria in place at the time of construction, and the impact from climate change.

A photo of an open trench with a large concrete pipe installed in the bottom of the trench.
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A photo of an open trench with a large concrete pipe installed in the bottom of the trench.
The project will require the installation of large concrete pipes in the bottom of large trenches. The trench will be backfilled and paved over once this process is complete.

Funding

Project Budget: $3,640,000

Funding Source: Stormwater Utility Fee

CIP Section: Stormwater Management

Learn more about the City of Alexandria's Fiscal Year Budget.

Schedule

  • Planning: October 2022 - July 2024
  • Design: August 2024 - June 2025
  • Construction: June 2025 - April 2026

Planning

Planning Update

The Valley Drive storm drain improvement project planning phase is complete. The investigation of neighborhood flooding study is now available, and includes site evaluation, CCTV inspection, hydraulic modeling verification, solution development and cost estimations. 

 

Sponsor Program

Flood Action Alexandria logo

This project is part of the Flood Action Alexandria program. In response to more frequent, intense climate-change-induced storm events, the City of Alexandria launched Flood Action Alexandria, a multipronged program to help address flooding issues in our community. 

Design

Design Update

The design phase of the Valley Drive Storm Drain Improvement Project has begun. The procurement process is currently underway to select a design contractor. Once the contractor is chosen, a kickoff meeting will be held to initiate the design work. After this meeting, the project team plans to engage with residents and stakeholders for further discussions.