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26-1544

AustinMay 10, 2026, 7:02 AM

Description

Title: Approve negotiation and execution of an interlocal agreement with Williamson County for the City to provide funding in an amount not to exceed $57,160 to update Williamson County’s ATLAS 14 Floodplain Mapping Study to incorporate updated topographic data and development information from areas within the City’s overlapping jurisdictional boundaries. Funding: $57,160 is available in the Operating Budget of Austin Watershed Protection.

Summary

The City of Austin is considering an interlocal agreement with Williamson County to enhance floodplain mapping through updated topographic data. The legislation proposes that Austin provide funding of up to $57,160 from its Watershed Protection Operating Budget to support this initiative. The funding will facilitate the incorporation of 2024 LiDAR data into the existing ATLAS 14 Floodplain Mapping Study, which is crucial for more accurately reflecting topographical changes in areas affected by recent development. This update will enhance floodplain models and mapping, improving flood risk assessments within the overlapping jurisdiction. The work will be conducted by the AECOM consulting firm. This collaboration is significant as it aims to enhance community safety and environmental management in the region.

Published: May 8, 2026, 8:53 PM
Processed: May 10, 2026, 7:02 AM