Liberty County gets detailed update on multi‑year master drainage plan; LIDAR, monuments and models to guide projects

Oct 14, 2025

County engineering consultant William Conlon briefed the Commissioners Court on a multi‑year master drainage study using 2024 LIDAR, bathymetric surveys, about 280 new survey monuments and both river‑centric and rain‑on‑mesh hydraulic models. The work is intended to refine flood risk mapping, prioritize crossings and support grant applications.

The full story

William Conlon, senior project manager at LJ Engineering, told the Liberty County Commissioners Court on Oct. 14 that a multi‑year master drainage plan is under way that relies on new 2024 LIDAR, extensive field survey work and multiple hydraulic modelling approaches.

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