Lake Houston Dam

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Project Overview

Council District: E(External link)

Project Number: S-000890-00BV

Estimated Budget: $160,000,000

Start: Summer 2028

Completion: Winter 2030

Project Impact Area

Community Feedback

Have questions or feedback about this project? Email us at engage@houstontx.gov or call 311.

Project Overview

Council District: E(External link)

Project Number: S-000890-00BV

Estimated Budget: $160,000,000

Start: Summer 2028

Completion: Winter 2030

Project Impact Area

Community Feedback

Have questions or feedback about this project? Email us at engage@houstontx.gov or call 311.

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Page last updated: 13 Jan 2026, 04:16 PM

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Project Timeline

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Why This Project Matters

The Lake Houston Dam Spillway Improvement Project is a critical flood risk reduction effort designed to protect communities along the San Jacinto River and ensure the reliability of a major regional water source.

1. Reduces Flood Risk During Severe Storms
By adding 11 tainter gates to the Lake Houston Dam, the project will enhance the City's ability to release water in a controlled manner during major storm events. This significantly reduces the risk of localized flooding for residential and commercial areas upstream and adjacent to Lake Houston.

2. Protects Nearby Communities
The improvements are targeted to safeguard neighborhoods and businesses most vulnerable to flooding, especially those directly surrounding Lake Houston.

3. Enhances Regional Water Security
Lake Houston is the primary drinking water reservoir for a large portion of the region—including Houston, Baytown, Deer Park, and parts of Harris and Fort Bend Counties. Strengthening the dam infrastructure helps maintain the safety and reliability of this essential water supply.

4. Builds Resilience in a Flood-Prone Region
As a localized flood risk reduction project, these improvements reflect the City’s ongoing commitment to preparing for extreme weather, protecting property, and ensuring public safety in the face of climate-related challenges.

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