Total Bridges
12,698
Public highway bridges in Louisiana
State profile · Above median Poor share
Louisiana bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Louisiana.
- 12,698
- Public bridges
- 38.7%
- Good condition
- 11.5%
- Poor condition
Louisiana holds 12,698 public highway bridges (#24 of 52 by inventory) with a 11.48% Poor share (#8 of 52 by Poor share).
That is 11.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 45 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
38.7%
4,919 bridges rated 7-9
-11.3pp vs 50% benchmark
Poor Condition
11.5%
1,458 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.5%
Louisiana vs national bridge condition
Louisiana - Good condition share 38.7%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana - Poor-condition share 38.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Louisiana in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Louisiana vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
12,698 24th of 54 higher than 30 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Louisiana
The highlighted point is Louisiana: 12,698 bridges and 11.48% in Poor condition, rank #45 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Louisiana on that same Poor-share ordering:
- North Dakota: 4,255 bridges · 10.98% Poor
- Michigan: 11,371 bridges · 11.27% Poor
- Louisiana: 12,698 bridges · 11.48% Poor
- Pennsylvania: 23,299 bridges · 12.58% Poor
- Guam: 47 bridges · 12.77% Poor
The full national sortable table lives on the rankings page.
Material families in Louisiana
Exclusive FHWA material families across all 12,698 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Louisiana’s inventory
State agency holds 61.0% of the 12,698 public highway bridges filed under Louisiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Louisiana’s bridges were built
Pre-1950 construction accounts for 4.2% of the 12,698 bridges with a recorded original year in Louisiana. Era bands are orthogonal to the Poor-share ranking above.
Condition Distribution
Counties (64)
Acadia 282 Allen 178 Ascension 216 Assumption 68 Avoyelles 147 Beauregard 221 Bienville 190 Bossier 270 Caddo 682 Calcasieu 463 Caldwell 124 Cameron 58 Catahoula 70 Claiborne 148 Concordia 42 De Soto 201 East Baton Rouge 548 East Carroll 55 East Feliciana 133 Evangeline 156 Franklin 131 Grant 209 Iberia 143 Iberville 80 Jackson 163 Jefferson 379 Jefferson Davis 240 LaSalle 195 Lafayette 322 Lafourche 130 Lincoln 171 Livingston 253 Madison 104 Morehouse 136 Natchitoches 313 Orleans 382 Ouachita 337 Plaquemines 34 Pointe Coupee 50 Rapides 523 Red River 63 Richland 207 Sabine 195 St. Bernard 47 St. Charles 82 St. Helena 139 St. James 26 St. John the Baptist 40 St. Landry 317 St. Martin 116 St. Mary 124 St. Tammany 360 Tangipahoa 477 Tensas 52 Terrebonne 215 Union 121 Vermilion 261 Vernon 341 Washington 285 Webster 194 West Baton Rouge 73 West Carroll 88 West Feliciana 108 Winn 220
Louisiana vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Louisiana on the same metric.
ND
North Dakota
10.98% top marginal rate
MI
Michigan
11.27% top marginal rate
LA
Louisiana
11.48% top marginal rate
PA
Pennsylvania
12.58% top marginal rate
GU
Guam
12.77% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Avenue E
PoorOver: DRESSER CANAL
0.10 MI WEST OF LA 1, Lafourche, LA
Built 1952 Load: 0.0 t
VALENTINE BRIDGE R
PoorOver: LAFOURCHE BAYOU
0.01 MI N OF LA 1, Lafourche, LA
Built 1969 Load: 0.0 t
UNNAMED RD
PoorOver: I-10
3.1 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
UNNAMED RD
PoorOver: I-10
4.5 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
Almonaster Ave
PoorOver: INNER HARBOR NAVIGATION
0.01 MI E OF FRANCE RD, Orleans, LA
Built 1919 Load: 0.0 t
Beiber Rd
PoorOver: NEZPIQUE BAYOU
3.65 Mi W of La 1160, Evangeline, LA
Built 1965 Load: 0.0 t ADT: 70
All Bridges in Louisiana
Stateline Rd
PoorOver: CREEK
4 MI NW OF JCT 51 & 1054, Tangipahoa, LA
Built 1986 Load: 10.0 t ADT: 40
George Jenkins rd
PoorOver: BARRYS CREEK
1.0 MI.N.OF.LA.16, Washington, LA
Built 1960 Load: 10.0 t ADT: 305
Leonard Seals Rd
PoorOver: JOES BRANCH
10.5 MI. W OF HWY. 2, Washington, LA
Built 1970 Load: 10.0 t ADT: 475
Hays Cr. Rd
PoorOver: HAYS CREEK
2.1 MI. N. OF HWY. 3, Washington, LA
Built 1970 Load: 10.0 t ADT: 528
REEDS BRIDGE RD
PoorOver: CALCASIEU RIVER RELIEF
1.9 MI WEST OF US 165, Allen, LA
Built 1960 Load: 10.2 t ADT: 132
PAUL BROWN RD
PoorOver: WEST FORK CANEY CREEK
1.0 MI S OF LA 10, Allen, LA
Built 1950 Load: 10.2 t ADT: 10
Berry Bowl Rd
PoorOver: CREEK
1.5 MI NW OF JCT 51, Tangipahoa, LA
Built 1975 Load: 10.2 t ADT: 310
LA0450
PoorOver: DRAIN
2.3 M N OF LA 10, Washington, LA
Built 1958 Load: 10.2 t ADT: 1,162
Burson Rd
PoorOver: PARMERS CREEK
2.5 MI NE OF HWY 7, Webster, LA
Built 1976 Load: 10.3 t ADT: 363
Marathon Rd
PoorOver: DRY CREEK
1.5 MI S OF HWY 160, Webster, LA
Built 1976 Load: 10.3 t ADT: 203
Harvey Lavigne
PoorOver: BEDICO CREEK
4.6 MI SE OF LA 445, Tangipahoa, LA
Built 1975 Load: 10.3 t ADT: 8
OLSON DR
PoorOver: BAYOU BARRIERE
0.8 MI S OF BARRIERE RD, Catahoula, LA
Built 1960 Load: 10.4 t ADT: 300
Scanlan Rd
PoorOver: GUEYDAN CANAL
2 Mile S of La 332, Vermilion, LA
Built 1979 Load: 10.4 t ADT: 20
LA0157
PoorOver: BODCAU BAYOU
4.0 MI NORTH OF LA 528, Bossier, LA
Built 1969 Load: 10.4 t ADT: 846
LA0146
PoorOver: ALLEN CREEK
1.48 MI EAST OF LA 9, Claiborne, LA
Built 1968 Load: 10.4 t ADT: 1,360
LA0513
PoorOver: DRAIN
1.1 MI NORTH OF LA 483, De Soto, LA
Built 1969 Load: 10.4 t ADT: 243
LA0783
PoorOver: BAYOU CHICOT
5.23 MI NORTH OF LA 783, Red River, LA
Built 1969 Load: 10.4 t ADT: 590
LA0717
PoorOver: BAYOU
7.4 MI. W OF LA 14, Cameron, LA
Built 1966 Load: 10.4 t ADT: 511
MURIA RD.
PoorOver: LITTLE CHENIER BAYOU
0.1 MI S of CHENIER RD, Cameron, LA
Built 1968 Load: 10.4 t ADT: 372
W. Chestnut St
PoorOver: CREEK BRIDGE
0.2 MI W US 51, Tangipahoa, LA
Built 1979 Load: 10.4 t ADT: 81
BOBTOWN BRIDGE RD
PoorOver: GRAND CAILLOU BAYOU
0.05 Mi W of La 57, Terrebonne, LA
Built 1960 Load: 10.7 t ADT: 2,395
Ernest Faulk Rd
PoorOver: COULEE
0.6 Mi S of LA 332, Vermilion, LA
Built 1999 Load: 10.7 t ADT: 90
LA0153
PoorOver: DRAIN
3.59 MI NORTH OF LA 155, Bienville, LA
Built 1975 Load: 10.7 t ADT: 1,377
POTTER RD.
PoorOver: THORNWELL DRAINAGE CANAL
1.1 MI N of LA14, Jefferson Davis, LA
Built 1972 Load: 10.7 t ADT: 30
Philadelphia Rd
PoorOver: HAINES CREEK
4.09 MI. ENE OF LA 1205, Rapides, LA
Built 1980 Load: 10.7 t ADT: 200
Heck Young Rd
PoorOver: CYPRESS BAYOU
1.8 M E of LA 964, East Baton Rouge, LA
Built 1965 Load: 10.7 t ADT: 2,080
LA0302
PoorOver: BAYOU BARATARIA
.07 MI EAST OF LA 3257, Jefferson, LA
Built 1948 Load: 10.9 t ADT: 1,254
LA1123
PoorOver: CREEK
4.24 MI WEST OF LA 98, Acadia, LA
Built 1954 Load: 10.9 t ADT: 134
Chinaberry Dr.
PoorOver: COULEE
0.1 Mi. S. of La 91, Acadia, LA
Built 1974 Load: 10.9 t ADT: 48
Spillway Rd.
PoorOver: CHICOT BAYOU
2.10M SOUTH OF LA 106, Evangeline, LA
Built 1970 Load: 10.9 t ADT: 90
Atkins Clark Rd
PoorOver: Flat Rivers Ditch
0.2 MI EAST OF US 71, Bossier, LA
Built 1988 Load: 10.9 t ADT: 50
LA0173
PoorOver: CREEK
5.0 MI N OF LA 3194, Caddo, LA
Built 1950 Load: 10.9 t ADT: 3,057
LA0146
PoorOver: COLEMAN CREEK
1.0 MI WEST OF WEST INT L, Claiborne, LA
Built 1967 Load: 10.9 t ADT: 1,360
HILL AVE
PoorOver: DRAINAGE CANAL HILL AVE.
.19 MI. W. INT. 005, Morehouse, LA
Built 1968 Load: 10.9 t ADT: 150
TURF GRASS RD.
PoorOver: GULLY
0.4 MI S OF CORMIER V RD, Jefferson Davis, LA
Built 1980 Load: 10.9 t ADT: 50
LA1072
PoorOver: Warner Creek
3.4 Miles SE of LA 16, Washington, LA
Built 1959 Load: 10.9 t ADT: 1,105
LA1055
PoorOver: SILVER CREEK RELIEF
1.4 M E OF LA 38, Washington, LA
Built 1957 Load: 10.9 t ADT: 94
Lake Forest BLVD
PoorOver: LAWRENCE CANAL
0.1 MI. E. OF BENTLE, Orleans, LA
Built 1975 Load: 11.0 t
Waterplant Rd.
PoorOver: TERREBONNE BAYOU
0.01 E OF LA 24, Terrebonne, LA
Built 1959 Load: 11.0 t ADT: 280
LA0010
PoorOver: STATE CANAL
1.50 MI WEST OF LA 105, St. Landry, LA
Built 1958 Load: 11.0 t ADT: 708
LA0082
PoorOver: EAST RELEIF
9.42 MI S. OF LA 3147, Vermilion, LA
Built 1958 Load: 11.0 t ADT: 2,899
LA0169
PoorOver: PINEY BAYOU
6.7 MI NORTH OF I-20, Caddo, LA
Built 1966 Load: 11.0 t ADT: 1,298
HALES RD
PoorOver: CREEK
LOGMI 0.01 FR 0DE TO, Richland, LA
Built 1966 Load: 11.0 t ADT: 230
LA0120
PoorOver: BAYOU SCIE
3.55 MI EAST OF US 171, Sabine, LA
Built 1960 Load: 11.0 t ADT: 235
LA1232
PoorOver: CREEK
4.64 MI EAST OF LA 501, Winn, LA
Built 1960 Load: 11.0 t ADT: 178
LA0933
PoorOver: HENDERSON BAYOU
0.9 M E of LA 44, Ascension, LA
Built 1969 Load: 11.0 t ADT: 6,131
Stanley Aubin Ln
PoorOver: WEINER CREEK
0.1 MI E of Cedarcrest Av, East Baton Rouge, LA
Built 1960 Load: 11.0 t ADT: 100
LA0422
PoorOver: STREAM NO NAME
1.9 Mi E of LA 19, East Feliciana, LA
Built 1969 Load: 11.0 t ADT: 153
LA0952
PoorOver: MCKOWEN CREEK
1.7 miles N of La 10, East Feliciana, LA
Built 1966 Load: 11.0 t ADT: 1,341
LA0952
PoorOver: BEAVER CREEK
LA0952, East Feliciana, LA
Built 1966 Load: 11.0 t ADT: 1,341
Showing 11,501-11,550 of 12,698 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
What to do with this
Use Louisiana's inventory picture to drill to a county or a specific span.
- Browse counties in Louisiana and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Louisiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.