Bridge conditions in West Baton Rouge Parish, Louisiana
72 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
West Baton Rouge Parish has 10 bridges rated poor out of 72 inventoried, a 13.9% share that puts it well above the national rate of about 7%.
- 10 of the 72 bridges in West Baton Rouge Parish, Louisiana, are rated in poor condition (13.9%) in the 2025 National Bridge Inventory, as of .
- 24 bridges (33.3%) are rated good and 38 (52.8%) fair.
- The median West Baton Rouge Parish bridge was built in 1968.
- The busiest poor-rated bridge is I0010 over La 415 (built 1969), carrying about 41,644 vehicles a day.
Good 33.3% · Fair 52.8% · Poor 13.9% of 72 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 |
|---|---|---|---|
| I0010 over La 415 | 1969 | 41,644 | Poor |
| LA0001 over Port Allen Canal | 1960 | 25,347 | Poor |
| LA0001 over Mo Pacific RR | 1952 | 25,347 | Poor |
| US0190 over La 415/M P RR @ Lobdell | 1940 | 12,262 | Poor |
| LA0076 over Chalpin Bayou | 1980 | 7,562 | Poor |
| LA0076 over Stream No Name | 1930 | 6,347 | Poor |
| LA0983 over Tiger Bayou | 1983 | 2,000 | Poor |
| LA9873 over Drainage Canal | 1962 | 1,725 | Poor |
| Section Rd over Bayou Poydras | 1973 | 500 | Poor |
| Sid Richardson Rd over Bayou Bourbeaux | 1970 | 230 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over La 1 & M.p. RR | 1968 | 197,070 | Fair |
| I0010 over Bayou Choctaw | 1974 | 80,618 | Fair |
| I0010 over Bridge 290 Ebl | 1973 | 80,618 | Good |
| I0010 over Drainage Canal | 1968 | 80,618 | Good |
| I0010 over Drainage Canal | 1969 | 80,618 | Fair |
| I0010 over La 415 | 1969 | 80,618 | Fair |
| I0010 over Ramps | 1968 | 52,159 | Fair |
| I0010 over Frontage Road | 1968 | 52,159 | Fair |
| I0010 over Bayou Choctaw | 1974 | 41,644 | Fair |
| I0010 over Bridge 290 Wbl | 1973 | 41,644 | 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.