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
14th St
PoorOver: BOGUE CHITTO CR.
FRANKLINTON LA, Washington, LA
Built 1960 Load: 9.1 t ADT: 420
Jimi Thomas Rd
PoorOver: MILLER CREEK BRIDGE
4.6 MI N. OF HWY LA 10, Washington, LA
Built 1960 Load: 9.1 t ADT: 62
Old Columbia Rd
PoorOver: Jamieson Creek
4 MI. N. OF HWY. 25, Washington, LA
Built 1970 Load: 9.1 t ADT: 829
Jamerson Cr. Rd
PoorOver: JAMIESON CREEK
0.8 M W OF HIGHWAY 430, Washington, LA
Built 1990 Load: 9.1 t ADT: 183
LA0153
PoorOver: TOPY CREEK RELIEF
2.79 MI NORTH OF LA 155, Bienville, LA
Built 1975 Load: 9.4 t ADT: 1,377
LA0520
PoorOver: BEAVER BRANCH
3.44 MI EAST OF US 79, Claiborne, LA
Built 1967 Load: 9.4 t ADT: 532
Applewhite St
PoorOver: Chatlin Lake Canal
APPLEWHITE STREET, Rapides, LA
Built 1983 Load: 9.4 t ADT: 240
Libuse Cut-off Rd
PoorOver: FLAGON BAYOU
1.0 MI. NORTH OF LA 28, Rapides, LA
Built 1979 Load: 9.4 t ADT: 220
LA0120
PoorOver: CREEK
0.86 MI EAST OF US 171, Sabine, LA
Built 1960 Load: 9.4 t ADT: 235
LA1215
PoorOver: TOLEDO BEND LAKE
1.08 MI. WEST OF LA 191, Sabine, LA
Built 1968 Load: 9.4 t ADT: 1,532
LA1232
PoorOver: CREEK
.22 MI EAST OF LA 501, Winn, LA
Built 1960 Load: 9.4 t ADT: 178
Lanier Dr
PoorOver: HURRICANE CREEK
.8 MI.NE-LA 37-LA 61, East Baton Rouge, LA
Built 1965 Load: 9.4 t ADT: 5,397
Victoria Dr
PoorOver: HURRICANE CREEK
400 N OF US 190, East Baton Rouge, LA
Built 1968 Load: 9.4 t ADT: 800
LA0068
PoorOver: KARRS CREEK
4 MI S La 10, East Feliciana, LA
Built 1964 Load: 9.4 t ADT: 4,439
Marydale Rd
PoorOver: ALEXANDER CREEK
.5 MI. E of US61, West Feliciana, LA
Built 1975 Load: 9.4 t ADT: 60
LA0056
PoorOver: ROBINSON CANAL
1.7 MI NORTH OF LA 57, Terrebonne, LA
Built 1966 Load: 9.7 t ADT: 3,872
LA0700
PoorOver: INDIAN BAYOU
1.3 MI NORTH OF LA 92, Lafayette, LA
Built 1977 Load: 9.7 t ADT: 1,900
LA0975
PoorOver: CREEK
4.3 MI N of I-10, St. Martin, LA
Built 1968 Load: 9.7 t ADT: 231
Wright Rd
PoorOver: COULEE
0.7 Mi S of La 14, Vermilion, LA
Built 1965 Load: 9.7 t ADT: 150
Hosston River Rd
PoorOver: HOSSTON R. RD KELLY B.
0.8 MILES E OF INT. US 71, Caddo, LA
Built 1981 Load: 9.7 t ADT: 147
LA0520
PoorOver: CREEK
1.86 MI NORTH OF I-20, Claiborne, LA
Built 1967 Load: 9.7 t ADT: 943
LA0002-A
PoorOver: THORNY BRANCH
.6 MI EAST OF LA 159, Webster, LA
Built 1968 Load: 9.7 t ADT: 655
MCMANUS RD
PoorOver: CREEK
LOGMI 5.11 FR 432 TO, Richland, LA
Built 1966 Load: 9.7 t ADT: 150
EARL RD.
PoorOver: CREOLE CANAL
0.4 MI N of LA 27, Cameron, LA
Built 1967 Load: 9.7 t ADT: 173
Beeson St
PoorOver: FLAGON BAYOU TRIB.
0.14 MI. WEST OF US 165, Rapides, LA
Built 1970 Load: 9.7 t ADT: 200
LA0120
PoorOver: BAYOU SCIE RELIEF 1
3.43 MI EAST OF US 171, Sabine, LA
Built 1960 Load: 9.7 t ADT: 235
Savage Forks Rd
PoorOver: BAYOU ANACOCO
4.1 MI. E. OF LA 464, Vernon, LA
Built 1970 Load: 9.7 t ADT: 200
Rodney Dr
PoorOver: DRAINAGE CANAL
RODNEY DR., East Baton Rouge, LA
Built 1960 Load: 9.7 t ADT: 350
HAMILTON ST
PoorOver: FORTY ARPENT CANAL
1.3 MI N. OF LA 308, Lafourche, LA
Built 1960 Load: 10.0 t ADT: 204
Inez T. Rd
PoorOver: ISAAC VEROT COULEE
0.12 Mi NW of Bonin Rd, Lafayette, LA
Built 1970 Load: 10.0 t ADT: 8
Russ Rd
PoorOver: ISLE MARRONE CANAL
1.75 Mi. W of LA 35, Vermilion, LA
Built 1978 Load: 10.0 t ADT: 30
Caplis Sligo Rd
PoorOver: Red Chute Bayou
1.6 MI SOUTH OF LA 612, Bossier, LA
Built 1995 Load: 10.0 t ADT: 710
Collinsbrg Creek
PoorOver: Collinsburg Creek
1.5 MI W OF HWY 3, Bossier, LA
Built 1980 Load: 10.0 t ADT: 110
LONGWOOD RD
PoorOver: DRAIN
1.1 MI E of LA 596, East Carroll, LA
Built 1977 Load: 10.0 t
CUTOFF RD
PoorOver: BAYOU COULEE
.4 MI. W. INT. 045, Morehouse, LA
Built 1981 Load: 10.0 t ADT: 40
MCFEE ST
PoorOver: STALKINGHEAD CRK MCFEE S
.4 MI. S. INT. 010, Morehouse, LA
Built 1981 Load: 10.0 t ADT: 350
AZALEA DRIVE
PoorOver: BAYOU BONNE IDEE
0.7 MI SOUTHWEST INT 137, Morehouse, LA
Built 1986 Load: 10.0 t ADT: 40
ROCKY BRANCH RD
PoorOver: BAYOU DARBONNE
1.1 MI. W. INT. 489, Union, LA
Built 1974 Load: 10.0 t ADT: 117
Adams Crossing
PoorOver: BAYOU ROUGE
0.01 MI. WEST OF LA 361, Avoyelles, LA
Built 1970 Load: 10.0 t ADT: 40
LA1199
PoorOver: CREEK
.18 MI. N OF LA488, Rapides, LA
Built 1965 Load: 10.0 t ADT: 362
Wayne Headrick Rd
PoorOver: LITTLE INDIAN CREEK
0.3 MI. SOUTH OF LA 28, Rapides, LA
Built 2004 Load: 10.0 t ADT: 40
Mchugh Rd
PoorOver: BAKER CANAL
2.2 MI SE JCT LA 64, East Baton Rouge, LA
Built 1960 Load: 10.0 t ADT: 973
E Flanacher Rd
PoorOver: DRAINAGE CANAL
0.7 MI E OF US 61, East Baton Rouge, LA
Built 1968 Load: 10.0 t ADT: 933
LA0955
PoorOver: KNIGHTON BAYOU
0.7 Mi N of LA 957, East Feliciana, LA
Built 1966 Load: 10.0 t ADT: 989
Carruth Rd
PoorOver: KELLERS BAYOU
1.7 Mi NE of LA 19, East Feliciana, LA
Built 1975 Load: 10.0 t ADT: 110
Plettenberg road
PoorOver: POLLY CREEK
3.5 MI. SW of LA968, West Feliciana, LA
Built 1975 Load: 10.0 t ADT: 110
LA0449
PoorOver: CREEK
1.0 M E OF LA 1019, Livingston, LA
Built 1955 Load: 10.0 t ADT: 1,467
LA1020
PoorOver: CREEK
0.5 M NW OF LA 1019, Livingston, LA
Built 1930 Load: 10.0 t ADT: 134
LA1129
PoorOver: SIMALUSA CREEK
2.3 M N OF LA 40, St. Tammany, LA
Built 1956 Load: 10.0 t ADT: 2,611
N. Brickyard Rd
PoorOver: CREEK
3.8 MI NW OF RT 190, Tangipahoa, LA
Built 1975 Load: 10.0 t ADT: 325
Showing 11,451-11,500 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.