City of Houston Woodshire Drainage and Paving Improvements

PGAL partnered with the City of Houston to deliver a multi-phase infrastructure upgrade for the flood-prone Woodshire neighborhood, home to more than 500 residences. Our team provided engineering services focused on long-term flood mitigation, utility improvements, and complete street reconstruction.

The project began with extensive drainage analysis to evaluate cost-effective options that would deliver 100-year storm protection. Phase one included a comprehensive drainage system, full street and sidewalk reconstruction, lighting and signal installation, and replacement of over 11,000 linear feet of 8-inch and 12-inch waterlines using both open cut and trenchless methods. This phase was completed in July 2019.

Phase two added a second full drainage system and back-alley reconstruction, along with more than 10,500 linear feet of 8-inch waterline upgrades.

Throughout both phases, PGAL maintained a strong focus on public engagement, supporting community understanding and involvement at every stage of the project.

Project Challenges Include:

1. Shallow outfalls required the use of multiple barrel shallow boxes
2. Existing topography restricted overland flows, requiring PGAL to collect and convey extreme event flows at certain parts of the project
3. Presence of sidewalks and paving in the whole width of the right-of-way required redevelopment of roadway profiles in areas of significant constraints
4. Maintained access during construction, despite significant trunk lines requiring total closure of multiple streets