Checked
Louisiana Bridge Conditions
Highway bridges longer than 20 feet in the 2025 National Bridge Inventory
Yearly inspection ratings. A poor rating does not mean a bridge is unsafe to use.
- Highway bridges
- 12,684
- Good condition
- 37.9%
- 4,802
- Poor condition
- 11.2%
- 1,423
- Weight-limited or closed
- 1,921
Bridges by county
| County | Bridges | Good | Poor | Weight-limited | Avg. year built |
|---|---|---|---|---|---|
| Acadia Parish | 280 | 42.1% | 8.2% (23) | 43 | 1978 |
| Allen Parish | 178 | 14.6% | 12.4% (22) | 24 | 1984 |
| Ascension Parish | 216 | 41.7% | 12% (26) | 34 | 1982 |
| Assumption Parish | 68 | 47.1% | 13.2% (9) | 11 | 1984 |
| Avoyelles Parish | 150 | 47.3% | 17.3% (26) | 28 | 1988 |
| Beauregard Parish | 221 | 12.7% | 10.4% (23) | 14 | 1979 |
| Bienville Parish | 190 | 19.5% | 27.9% (53) | 29 | 1979 |
| Bossier Parish | 269 | 27.5% | 15.2% (41) | 31 | 1983 |
| Caddo Parish | 683 | 40.3% | 6.6% (45) | 54 | 1986 |
| Calcasieu Parish | 462 | 18.2% | 8.4% (39) | 35 | 1983 |
| Caldwell Parish | 124 | 54.8% | 9.7% (12) | 11 | 1982 |
| Cameron Parish | 58 | 13.8% | 24.1% (14) | 23 | 1985 |
| Catahoula Parish | 69 | 46.4% | 5.8% (4) | 9 | 1985 |
| Claiborne Parish | 148 | 29.7% | 22.3% (33) | 18 | 1983 |
| Concordia Parish | 42 | 38.1% | 14.3% (6) | 6 | 1982 |
| De Soto Parish | 201 | 26.9% | 7.5% (15) | 9 | 1980 |
| East Baton Rouge Parish | 549 | 41.9% | 18.8% (103) | 96 | 1981 |
| East Carroll Parish | 55 | 32.7% | 16.4% (9) | 9 | 1981 |
| East Feliciana Parish | 131 | 31.3% | 23.7% (31) | 25 | 1980 |
| Evangeline Parish | 155 | 43.9% | 6.5% (10) | 35 | 1981 |
| Franklin Parish | 130 | 64.6% | 3.8% (5) | 13 | 1989 |
| Grant Parish | 209 | 35.9% | 14.4% (30) | 17 | 1982 |
| Iberia Parish | 142 | 42.3% | 10.6% (15) | 28 | 1985 |
| Iberville Parish | 80 | 33.8% | 12.5% (10) | 18 | 1976 |
| Jackson Parish | 163 | 23.3% | 8% (13) | 30 | 1982 |
| Jefferson Davis Parish | 242 | 11.2% | 18.6% (45) | 57 | 1980 |
| Jefferson Parish | 381 | 59.3% | 4.2% (16) | 27 | 1984 |
| Lafayette Parish | 319 | 45.1% | 7.8% (25) | 74 | 1986 |
| Lafourche Parish | 130 | 39.2% | 15.4% (20) | 49 | 1981 |
| LaSalle Parish | 195 | 59.5% | 6.2% (12) | 15 | 1984 |
| Lincoln Parish | 171 | 23.4% | 12.9% (22) | 29 | 1983 |
| Livingston Parish | 251 | 38.6% | 7.6% (19) | 61 | 1978 |
| Madison Parish | 104 | 17.3% | 6.7% (7) | 7 | 1974 |
| Morehouse Parish | 136 | 32.4% | 14% (19) | 14 | 1984 |
| Natchitoches Parish | 320 | 40.3% | 14.4% (46) | 27 | 1985 |
| Orleans Parish | 381 | 43% | 10.8% (41) | 27 | 1976 |
| Ouachita Parish | 331 | 23.6% | 12.7% (42) | 48 | 1982 |
| Plaquemines Parish | 35 | 17.1% | 20% (7) | 8 | 1982 |
| Pointe Coupee Parish | 51 | 27.5% | 21.6% (11) | 10 | 1973 |
| Rapides Parish | 524 | 53.4% | 6.5% (34) | 37 | 1987 |
| Red River Parish | 61 | 24.6% | 26.2% (16) | 6 | 1984 |
| Richland Parish | 204 | 23% | 9.8% (20) | 17 | 1980 |
| Sabine Parish | 195 | 51.8% | 11.3% (22) | 15 | 1983 |
| St. Bernard Parish | 47 | 55.3% | 6.4% (3) | 2 | 1998 |
| St. Charles Parish | 82 | 59.8% | 1.2% (1) | 2 | 1981 |
| St. Helena Parish | 139 | 32.4% | 8.6% (12) | 20 | 1979 |
| St. James Parish | 26 | 30.8% | 3.8% (1) | 0 | 1976 |
| St. John the Baptist Parish | 40 | 32.5% | 2.5% (1) | 1 | 1979 |
| St. Landry Parish | 316 | 42.1% | 8.9% (28) | 45 | 1980 |
| St. Martin Parish | 117 | 39.3% | 8.5% (10) | 32 | 1981 |
| St. Mary Parish | 124 | 29% | 7.3% (9) | 23 | 1975 |
| St. Tammany Parish | 361 | 34.1% | 5% (18) | 55 | 1977 |
| Tangipahoa Parish | 477 | 39.8% | 12.4% (59) | 109 | 1977 |
| Tensas Parish | 52 | 57.7% | 3.8% (2) | 6 | 1979 |
| Terrebonne Parish | 214 | 42.5% | 10.3% (22) | 49 | 1983 |
| Union Parish | 121 | 20.7% | 10.7% (13) | 11 | 1978 |
| Vermilion Parish | 260 | 44.6% | 10% (26) | 84 | 1985 |
| Vernon Parish | 337 | 57.9% | 8.3% (28) | 38 | 1989 |
| Washington Parish | 285 | 43.5% | 10.2% (29) | 51 | 1979 |
| Webster Parish | 194 | 21.1% | 24.7% (48) | 54 | 1975 |
| West Baton Rouge Parish | 72 | 33.3% | 13.9% (10) | 4 | 1969 |
| West Carroll Parish | 88 | 23.9% | 6.8% (6) | 6 | 1982 |
| West Feliciana Parish | 108 | 48.1% | 16.7% (18) | 20 | 1993 |
| Winn Parish | 220 | 54.1% | 17.3% (38) | 30 | 1987 |
Frequently asked questions
- How many bridges in Louisiana are in poor condition?
- In the 2025 National Bridge Inventory, 1,423 of 12,684 highway bridges in Louisiana were rated poor (11.2% of rated bridges).
- Which Louisiana counties have the most bridges in poor condition?
- Among counties with at least 30 bridges, the highest shares rated poor are Bienville Parish (27.9%), Red River Parish (26.2%), Webster Parish (24.7%), Cameron Parish (24.1%), East Feliciana Parish (23.7%).
Source: Federal Highway Administration, National Bridge Inventory · 2025 data