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
JEAN ROAD
PoorOver: BIRDS CREEK
FORT POLK, Vernon, LA
Built 1987 Load: 24.3 t ADT: 336
Evergreen Rd
PoorOver: HOLDER CREEK
3.1 MI NW. OF LA. 159, Webster, LA
Built 1979 Load: 24.5 t ADT: 184
LA0454
PoorOver: WIGGINS BAYOU
4.12 MILES SW OF LA 115, Avoyelles, LA
Built 1958 Load: 24.5 t ADT: 226
Virgina St
PoorOver: BAYOU BOEUF
0.08 MILE SOUTH OF LA 112, Rapides, LA
Built 1991 Load: 24.5 t ADT: 40
LA0499
PoorOver: CREEK
8.5 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 24.5 t ADT: 114
LA0499
PoorOver: ICE BRANCH
8.85 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 24.5 t ADT: 114
Stoney Point Burch
PoorOver: SANDY CREEK
3.2 MI. S. OF PRIDE, East Baton Rouge, LA
Built 1965 Load: 24.5 t ADT: 332
LA0098
PoorOver: CREEK
1.6 MI EAST OF LA 367, Acadia, LA
Built 1973 Load: 24.6 t ADT: 3,881
I0049
PoorOver: LA0010
12.8 MI SE OF LA 29, St. Landry, LA
Built 1989 Load: 24.6 t ADT: 13,540
LA0083
PoorOver: BAYOU CHOUPIQUE
1.28 MI South of LA 182, St. Mary, LA
Built 1978 Load: 24.6 t ADT: 10,148
LA0509
PoorOver: WATSON BAYOU
1.64 MI WEST OF LA 1, Red River, LA
Built 1978 Load: 24.6 t ADT: 1,975
LA0585
PoorOver: DRAINAGE CANAL
1.86 MI NORTH OF US 65, East Carroll, LA
Built 1977 Load: 24.6 t ADT: 372
A&D ABSHIRE RD.
PoorOver: THORNWELL DRAINAGE CANAL
0.2 MI W of LYONS RD, Jefferson Davis, LA
Built 1972 Load: 24.6 t ADT: 30
LA0001
PoorOver: MO PACIFIC RR
0.25 MI N OF LA 987-2, West Baton Rouge, LA
Built 1952 Load: 24.6 t ADT: 25,347
LA1110
PoorOver: Cole Gully
0.75 Mi N of LA 98, Acadia, LA
Built 1982 Load: 24.9 t ADT: 303
LA1252
PoorOver: BAYOU POINT BRULE
5.40 MI NE OF I-49 FR RD, Lafayette, LA
Built 1975 Load: 24.9 t ADT: 152
LA3008
PoorOver: BLACK BAYOU
1.4 MI SOUTH OF LA 160, Webster, LA
Built 1974 Load: 24.9 t ADT: 145
PICARD RD
PoorOver: DINDE BAYOU
0.6 MI S. OF US90, Calcasieu, LA
Built 1968 Load: 24.9 t ADT: 2,741
LA0063
PoorOver: SANDY CREEK
3.0 M NE of LA 67, East Feliciana, LA
Built 1957 Load: 24.9 t ADT: 1,584
N GALVEZ ST
PoorOver: RR YARD @ GALVEZ ST
0.06 MI E OF ALMONASTE A, Orleans, LA
Built 1950 Load: 25.3 t
LA0720
PoorOver: Indian Bayou
2.2 MI WEST OF LA 719, Lafayette, LA
Built 1972 Load: 25.3 t ADT: 1,391
US0190
PoorOver: MO PACIFIC RR
0.4 MI EAST OF I-49, St. Landry, LA
Built 1962 Load: 25.3 t ADT: 20,176
LA0480
PoorOver: BOGGY LAKE
5.05 MI SOUTH OF US 84, Red River, LA
Built 1975 Load: 25.3 t ADT: 2,011
I0010
PoorOver: US 165 FRONTAGE RD RR
1.8 MI E OF LA 383, Jefferson Davis, LA
Built 1964 Load: 25.3 t ADT: 27,700
I0010
PoorOver: US 165 FRONTAGE RD RR
3.3 MI W OF LA 101, Jefferson Davis, LA
Built 1964 Load: 25.3 t ADT: 11,635
Jackson Rd
PoorOver: DUFF BAYOU
1.1 MI.SOUTHWEST OF, East Baton Rouge, LA
Built 1970 Load: 25.3 t ADT: 1,379
LA0979
PoorOver: FALSE RIVER CANAL
0.8 M W of LA 978, Pointe Coupee, LA
Built 1980 Load: 25.3 t ADT: 748
I0055-S
PoorOver: PASS MANCHAC
Pass Manchac, Tangipahoa, LA
Built 1957 Load: 25.3 t ADT: 4,107
LA0521
PoorOver: INDIAN CREEK
.4 MI NORTH OF LA 2 ALT, Claiborne, LA
Built 1968 Load: 25.4 t ADT: 129
LA0002-A
PoorOver: INDIAN CREEK
2.0 MI EAST OF LA 159, Webster, LA
Built 1968 Load: 25.4 t ADT: 655
WALNUT CREEK RD
PoorOver: I 20
3.7 MI WEST OF LA 507, Lincoln, LA
Built 1963 Load: 25.4 t ADT: 2,930
US0080
PoorOver: PANOLA BAYOU
13.4 MI EAST OF LA 577, Madison, LA
Built 1955 Load: 25.4 t ADT: 1,558
BEBEE ROAD
PoorOver: GULLY
0.6 MI N of LA 101, Jefferson Davis, LA
Built 1971 Load: 25.4 t ADT: 200
LA0153
PoorOver: DRAIN
5.08 MI. N OF INT LA9, Natchitoches, LA
Built 1974 Load: 25.4 t ADT: 609
LA0462
PoorOver: STEEP GULLY BRANCH
1.25 MI. S OF LA113, Rapides, LA
Built 1940 Load: 25.4 t ADT: 77
US0084
PoorOver: DUGDEMONA RIVER
1.59 MI EAST OF US 167, Winn, LA
Built 1929 Load: 25.4 t ADT: 4,317
LA0499
PoorOver: ICE BRANCH
10.1 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 25.4 t ADT: 114
LA0063
PoorOver: HUNTERS BAYOU
LA0063, East Feliciana, LA
Built 1957 Load: 25.4 t ADT: 1,584
Boeneke Rd
PoorOver: BLUFF CREEK
0.9 M E of LA 63, East Feliciana, LA
Built 2003 Load: 25.4 t ADT: 26
LA0062
PoorOver: DRAIN
0.1 M S OF LA 438, Washington, LA
Built 1959 Load: 25.4 t ADT: 1,205
US0165
PoorOver: YOUNGS BAYOU
.7 MI NORTH OF LA 15, Ouachita, LA
Built 1966 Load: 25.6 t ADT: 29,759
TERRY PKWY
PoorOver: INDUSTRY CANAL
0.1MI.N.OF BELLCHASE, Jefferson, LA
Built 1974 Load: 25.9 t
LA0039
PoorOver: N O P B RR(CLAIBORNE AVE
.6 MI EAST OF LA 3021, Orleans, LA
Built 1949 Load: 25.9 t ADT: 36,993
I0010
PoorOver: I-610 & I-10
.5 MI EAST OF I-10, Orleans, LA
Built 1963 Load: 25.9 t ADT: 49,634
LA0004
PoorOver: DRAIN
4.1 MI EAST OF LA 155, Bienville, LA
Built 1927 Load: 26.0 t ADT: 890
LA0389
PoorOver: BRUSHY CREEK
8.8 MI W of LA 109, Beauregard, LA
Built 1967 Load: 26.1 t ADT: 442
LA1058
PoorOver: DRAIN
0.9 M N OF LA 1059, Tangipahoa, LA
Built 1951 Load: 26.1 t ADT: 899
ALMONASTER AVE
PoorOver: FLORIDA AVE
0.5 MI N. OF GALVEZ, Orleans, LA
Built 1960 Load: 26.2 t
US0080
PoorOver: CLARKE BAYOU
0.2 MI EAST OF LA 164, Bossier, LA
Built 1930 Load: 26.2 t ADT: 2,376
LA0820
PoorOver: STOWE CREEK
.63 MI SOUTH OF LA 33, Lincoln, LA
Built 1979 Load: 26.2 t ADT: 2,230
Showing 12,401-12,450 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.