Blanco Riverine Flood Mitigation Project

This project was identified in 2017 as a means to reduce flood flows from the Blanco River that currently exit the river in the Blanco Gardens subdivision and flow through the neighborhood toward the San Marcos River. This overflow occurs in events as low 5% annual chance (20-year) flood event.

In response to the Memorial Day Floods and All Saints Floods of 2015, San Marcos has received $33.8M in Housing and Urban Development (HUD) Community Development Block Grant Disaster Recovery funds (CDBG-DR). Partial funding for this project was allocated from the CDBG-DR funds. Learn more about the City’s CDBG Disaster Recovery Program.

Public Meeting Presentations

Public Meeting - Environmental Document - held February 6, 2020
Completed Preliminary Engineering Report
60% Final Design Completed
90% Final Design In-Progress
Completed Engineering Feasibility Report and submitted to Texas Water Development Board
Completed Environmental Information Document and submitted to Texas Water Development Board
Environmental Assessment and Request for Release of Funds (RROF) approved by HUD
Acquisition Process is In-Progress

On September 12, 2018, the second Blanco Riverine Flood Mitigation community meeting was held at the San Marcos Activity Center. Below are links to the presentation given at the meeting, in English and Spanish:

September 12 Community Meeting Presentation - English (PDF)

September 12 Community Meeting Presentation - Spanish (PDF)