Bridge conditions in Terrebonne Parish, Louisiana
214 inventoried bridges · 22 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 214 Terrebonne Parish bridges in the federal inventory, 22 carry a poor rating. That 10.3% share is roughly 2x the national average.
- 22 of the 214 bridges in Terrebonne Parish, Louisiana, are rated in poor condition (10.3%) in the 2025 National Bridge Inventory, as of .
- 91 bridges (42.5%) are rated good and 101 (47.2%) fair.
- The median Terrebonne Parish bridge was built in 1983.
- The busiest poor-rated bridge is N. Hollywood Rd over Drain Canal (built 1965), carrying about 13,934 vehicles a day.
Good 42.5% · Fair 47.2% · Poor 10.3% of 214 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N. Hollywood Rd over Drain Canal | 1965 | 13,934 | Poor |
| LA0182 over Bayou Terrebonne | 1968 | 9,001 | Poor |
| LA0024 over Co. Canal (bourg) | 1951 | 8,645 | Poor |
| LA0315 over Provost Bayou | 1953 | 6,715 | Poor |
| LA0058 over Drainage Canal | 1966 | 5,194 | Poor |
| Moffet Rd over Chauvin Bayou | 1979 | 5,123 | Poor |
| E Woodlawn Ranch R over Grand Caillou Bayou | 1980 | 4,278 | Poor |
| LA0056 over Boudreaux Canal | 1959 | 3,872 | Poor |
| LA0182 over Bayou Terrebonne | 1954 | 3,687 | Poor |
| 9th St over St Louis Canal | 1965 | 3,492 | Poor |
| Roussell St over Bayou Terrebonne | 1979 | 2,503 | Poor |
| Bobtown Bridge Rd over Grand Caillou Bayou | 1960 | 2,395 | Poor |
| Mandalay Bridge over Black Bayou | 1969 | 2,388 | Poor |
| LA0315 over Falgout Canal | 1964 | 2,378 | Poor |
| Savanne Rd over Hanson Canal | 1967 | 2,200 | Poor |
| Brady Bridge Rd over Du Large Bayou | 1960 | 700 | Poor |
| Falgout Canal Rd over Grand Caillou Bayou | 1976 | 363 | Poor |
| Waterplant Rd. over Terrebonne Bayou | 1959 | 280 | Poor |
| North St over Chacahoula Canal | 2011 | 135 | Poor |
| South St over Coulee | 1960 | 135 | Poor |
| Grand Caillou Rd over Platt Bayou | 1978 | 128 | Poor |
| LA3197 over Houma Canal | 1938 | 119 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| LA0024 over Bayou Terrebonne | 2006 | 30,800 | Fair |
| LA0024 over Intracoastal Waterway | 1996 | 29,371 | Good |
| LA0024 over Sprr & La 20 | 1970 | 28,505 | Fair |
| LA0024 over Cane Bayou | 1960 | 23,871 | Good |
| LA0024 over Bayou Terrebonne | 1998 | 22,400 | Good |
| LA0024 over Intracoastal Waterway | 1996 | 20,358 | Good |
| Hollywood Rd over B Terrebonne | 1976 | 15,540 | Good |
| Liberty St Bridge over Bayou Terrebonne | 1994 | 14,700 | Good |
| St Charles St over Bayou Black | 2003 | 14,665 | Fair |
| LA0024 over St Louis Canal | 1959 | 14,232 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Louisiana: Louisiana bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.