The City of Houston Office of Emergency Management (OEM) urges residents and visitors to avoid Houston roadways during periods of prolonged or intense rainfall. OEM, in partnership with Houston Public Works and the TxDOT Houston District, has produced an interactive map of roadway segments, freeway/ tollroad segments, and underpasses that are especially prone to flooding. Travelers should heed special caution around these locations.
All underpasses and low-lying areas are potentially dangerous during periods of heavy and/or prolonged rainfall. If you see a barricade in your path, DO NOT drive around it or move it. Barricades are put in place explicitly to protect lives.