Bridge conditions in Iberville Parish, Louisiana
80 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 8 bridges in Iberville Parish is rated in poor condition: 10 of 80 on the federal inventory, one of the higher shares in Louisiana.
- 10 of the 80 bridges in Iberville Parish, Louisiana, are rated in poor condition (12.5%) in the 2025 National Bridge Inventory, as of .
- 27 bridges (33.8%) are rated good and 43 (53.8%) fair.
- The median Iberville Parish bridge was built in 1972.
- The busiest poor-rated bridge is LA0001 over Bayou Plaquemine (built 1950), carrying about 10,843 vehicles a day.
Good 33.8% · Fair 53.8% · Poor 12.5% of 80 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 |
|---|---|---|---|
| LA0001 over Bayou Plaquemine | 1950 | 10,843 | Poor |
| LA0076 over Stream No Name | 1952 | 7,562 | Poor |
| LA0077 over Port Allen Lock | 1961 | 4,376 | Poor |
| LA0075 over Bayou Breaux | 1969 | 2,943 | Poor |
| LA3066 over Centennial Canal | 1968 | 2,052 | Poor |
| LA0997 over B Pigeon/lower Grand R. | 1957 | 845 | Poor |
| LA0404 over Bayou Tigris | 1955 | 551 | Poor |
| Sidney Rd over Port Allen Lock | 1966 | 400 | Poor |
| LA0995 over False Branch | 1964 | 196 | Poor |
| Grand Rd over Drainage Canal | 1975 | 90 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over UP Railroad | 1972 | 60,154 | Fair |
| I0010 over Trinity Drainage Canal | 1971 | 58,734 | Fair |
| I0010 over UP Railroad | 1972 | 58,734 | Fair |
| I0010 over La 77 La 411 Bayou | 1972 | 58,734 | Fair |
| I0010 over Bridge 250 Ebl | 1974 | 58,734 | Good |
| I0010 over West Floodway | 1972 | 42,449 | Fair |
| I0010 over Whiskey Bay Channel | 1972 | 42,449 | Fair |
| I0010 over La 77 La 411 Bayou | 1972 | 41,644 | Fair |
| I0010 over Br 250 Westbound | 1974 | 41,644 | Good |
| I0010 over LA975 E Floodway LA3000 | 1972 | 21,450 | 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.