The City of Houston Office of Emergency Management (OEM) urges residents and visitors to avoid Houston roadways during periods of prolonged or intense rainfall. The Department of Public Works & Engineering and OEM have produced a map of roadway 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.