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
LA0172
FairOver: LITTLE CREEK
1.4 MI WEST OF LA 169, De Soto, LA
Built 1958 Load: 27.2 t ADT: 1,316
LA0481
FairOver: COW BAYOU RELIEF
4.14 MI NORTH OF LA 191, De Soto, LA
Built 1962 Load: 27.2 t ADT: 469
LA0148
FairOver: CYPRESS BAYOU
6.74 MI WEST OF LA 146, Jackson, LA
Built 1955 Load: 27.2 t ADT: 532
HOGAN RD
FairOver: CREEK
LP 405 - HOGAN ROAD, Lincoln, LA
Built 1983 Load: 27.2 t
US0065
FairOver: WALNUT BAYOU
.15 MI NORTH OF I-20, Madison, LA
Built 1963 Load: 27.2 t ADT: 8,046
US0425
FairOver: LITTLE BONNE IDEE BAYOU
3.0 MI NORTH OF LA 134, Morehouse, LA
Built 1950 Load: 27.2 t ADT: 1,954
US0425
FairOver: BAYOU GALION
6.0 MI NORTH OF LA 134, Morehouse, LA
Built 1950 Load: 27.2 t ADT: 1,954
Charles Dickerson
FairOver: Patten Slough
.23 MI EAST OF LA 593, Morehouse, LA
Built 1963 Load: 27.2 t ADT: 110
SUNSHINE RD
FairOver: BOEUF RIVER
BOEUF R. AT FISKE UN, Morehouse, LA
Built 1977 Load: 27.2 t ADT: 60
LA0546
FairOver: CLARKS CREEK
1.2 MI NORTH OF LA 151, Ouachita, LA
Built 1953 Load: 27.2 t ADT: 2,010
RICHLAND PLACE
FairOver: BAYOU DESIARD
0.2 MI. E. HWY. 165, Ouachita, LA
Built 1978 Load: 27.2 t ADT: 100
US0080
FairOver: BEE BAYOU
.2 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 27.2 t ADT: 1,451
LA0584
FairOver: BEE BAYOU
1.8 MI EAST OF US 425, Richland, LA
Built 1954 Load: 27.2 t ADT: 990
LA0002
FairOver: MILL CREEK
.9 MI WEST OF LA 15, Union, LA
Built 1964 Load: 27.2 t ADT: 11,805
LA0585
FairOver: CREEK
1.2 MI WEST OF LA 577, West Carroll, LA
Built 1960 Load: 27.2 t ADT: 422
LA0588
FairOver: DEEP GULLY
4.32 MI EAST OF LA 17, West Carroll, LA
Built 1963 Load: 27.2 t ADT: 171
US0171
FairOver: MP RR & US 190
6.5 MI S OF LA 110, Beauregard, LA
Built 2007 Load: 27.2 t ADT: 8,021
LA0109
FairOver: JOHNS GULLY
3.4 MI. N. OF LA 389, Beauregard, LA
Built 1963 Load: 27.2 t ADT: 303
LA1147
FairOver: W CANEY BRANCH
2.9 MI. N OF INT LA113, Beauregard, LA
Built 1967 Load: 27.2 t ADT: 295
LA1147
FairOver: CREEK
4.74 MI. N OF LA113, Beauregard, LA
Built 1967 Load: 27.2 t ADT: 624
I0010
FairOver: ANTOINNE GULLY
2.8 MI EAST OF US 171, Calcasieu, LA
Built 1964 Load: 27.2 t ADT: 71,509
I0010
FairOver: ANTOINNE GULLY
0.6 MI W OF LA 397, Calcasieu, LA
Built 1964 Load: 27.2 t ADT: 11,437
HODGES ST
FairOver: DRAINAGE CANAL
0.5 MI. S. OF BROAD ST., Calcasieu, LA
Built 1928 Load: 27.2 t ADT: 3,268
LA0115
FairOver: BAYOU BOEUF
LA0115, Avoyelles, LA
Built 1958 Load: 27.2 t ADT: 2,504
LA1175
FairOver: BAYOU BOEUF
0.79 MILE EAST OF LA 29, Avoyelles, LA
Built 1967 Load: 27.2 t ADT: 79
LA0485
FairOver: BAYOU PIERRE
5.30 MI E OF JCT 1-49, Natchitoches, LA
Built 1978 Load: 27.2 t ADT: 462
LA0454
FairOver: PILLARS CREEK
2.56 MI. SOUTH OF LA 107, Rapides, LA
Built 1947 Load: 27.2 t ADT: 226
LA3170
FairOver: LATANIER BAYOU
3.78 MI. EAST OF LA 3170, Rapides, LA
Built 1973 Load: 27.2 t ADT: 7,317
Boy Scout Rd
FairOver: MILL CREEK
2.75 MI. SOUTH OF LA 112, Rapides, LA
Built 1984 Load: 27.2 t ADT: 50
Robert Goleman Rd
FairOver: MUDDY BRANCH
0.8 MI. EAST OF LA 121, Rapides, LA
Built 1972 Load: 27.2 t ADT: 45
LA0191
FairOver: BAYOU SAN MIGUEL
0.94 M N OF S JCT LA 482, Sabine, LA
Built 1967 Load: 27.2 t ADT: 1,210
LA0008
FairOver: SABINE RIVER @ BURR FERR
1.5 MI WEST OF THE WEST I, Vernon, LA
Built 1937 Load: 27.2 t ADT: 1,229
US0167
FairOver: BIG CREEK
2.7 MI NORTH OF LA 126, Winn, LA
Built 1952 Load: 27.2 t ADT: 5,107
LA0127
FairOver: CASTOR CR RELIEF
3.7 MI NORTH OF LA 125, Caldwell, LA
Built 1970 Load: 27.2 t ADT: 314
LA0844
FairOver: HURRICANE CREEK
0.81 M S of LA 547, Caldwell, LA
Built 1981 Load: 27.2 t ADT: 955
LA0850
FairOver: HURRICANE CREEK
6.1 MI NORTH OF LA 849, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 468
LA0846
FairOver: CREEK
4.33 MI N OF LA 4, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 650
LA0851
FairOver: BOGGY BAYOU
0.20 M W of LA 849, Caldwell, LA
Built 1983 Load: 27.2 t ADT: 166
LA0124
FairOver: RAWSON CREEK
4.3 MI N OF LA 8, Catahoula, LA
Built 1970 Load: 27.2 t ADT: 1,007
LA3101
FairOver: DRAIN
2.8 MI E OF LA 923, Catahoula, LA
Built 1966 Load: 27.2 t ADT: 391
LA0132
FairOver: TURKEY CREEK
0.80 M W of LA 859, Franklin, LA
Built 1982 Load: 27.2 t ADT: 431
LA0860
FairOver: HURRICANE SLOUGH
0.4 MI WEST OF LA 17, Franklin, LA
Built 1961 Load: 27.2 t ADT: 199
US0084
FairOver: LA MIDLAND R/R
1.2 MI EAST OF LA 127, LaSalle, LA
Built 1958 Load: 27.2 t ADT: 3,980
LA0503
FairOver: BAYOU FUNNY LOUIS
1.27 MI EAST OF LA 127, LaSalle, LA
Built 1966 Load: 27.2 t ADT: 189
LA0503
FairOver: CREEK
3.4 MI EAST OF LA 127, LaSalle, LA
Built 1966 Load: 27.2 t ADT: 189
LA0575
FairOver: MILL BAYOU
2.O MI EAST OF LA 888, Tensas, LA
Built 1962 Load: 27.2 t ADT: 26
I0010
FairOver: LA 73
6.0 Mi. E. of LA 42, Ascension, LA
Built 1975 Load: 27.2 t ADT: 60,802
LA0937
FairOver: NEW RIVER
LA0937, Ascension, LA
Built 1962 Load: 27.2 t ADT: 1,313
US0190
FairOver: JONES CREEK
US0190, East Baton Rouge, LA
Built 1958 Load: 27.2 t ADT: 19,515
US0190
FairOver: JONES CREEK
1.20 Mi. E of US 61, East Baton Rouge, LA
Built 1961 Load: 27.2 t ADT: 17,284
Showing 2,301-2,350 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.