Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above national median SD
Louisiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Louisiana — drawn straight from the FHWA National Bridge Inventory.
- 12,699
- Public bridges
- 36.2%
- Good condition
- 11.0%
- Poor condition
- 11.0%
- Structurally deficient
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges rated 0-4
Structurally Deficient
11.0%
1,397 bridges flagged for repair priority
4.0pp vs national avg 7.0%
Louisiana vs national bridge condition
Louisiana — Good condition share 36.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana — Structurally deficient share 36.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Louisiana (FHWA NBI)
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 323 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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Louisiana on the same metric.
42
Pennsylvania
10.50% top marginal rate
38
North Dakota
10.84% top marginal rate
22
Louisiana
11.00% top marginal rate
72
Puerto Rico
11.98% top marginal rate
23
Maine
13.23% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
Layton Coco Xing
Structurally DeficientOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1986 Load: 0.9 t ADT: 40
LA1077
Structurally DeficientOver: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Built 1965 Load: 0.9 t ADT: 1,019
LA0308
Structurally DeficientOver: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Built 1970 Load: 1.0 t ADT: 5,198
Ebeneezer Tap Rd
PoorOver: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Built 1989 Load: 1.2 t ADT: 300
Anderson Rd
Structurally DeficientOver: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Built 1960 Load: 1.2 t ADT: 25
Stubblefield Rd
PoorOver: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Built 1975 Load: 2.3 t ADT: 40
All Bridges in Louisiana
Maryview Farm Rd
FairOver: MANOR PARK COULEE
1.15 Mi NE of I-10, Lafayette, LA
Built 1986 Load: 36.9 t ADT: 340
St. Claire Rd.
FairOver: ST. CLAIR BAYOU
1.4 Mi W of Sawmill Hwy, Lafayette, LA
Built 1986 Load: 36.9 t ADT: 720
LA0146
FairOver: SUGAR CREEK
3.13 MILES WEST OF LA 545, Lincoln, LA
Built 2011 Load: 36.9 t ADT: 1,360
PRAIRIE DEBUTTE RD
FairOver: BAYOU DEBUTTE
0.7 MI W of LA 593, Morehouse, LA
Built 1997 Load: 36.9 t ADT: 180
LA0557
FairOver: BAYOU LAPINE
1.09 MI SOUTH OF LA 34, Ouachita, LA
Built 2002 Load: 36.9 t ADT: 3,528
RED CUT RD
FairOver: DRAIN INTO LAPINE BAYOU
.3 MI NE INT. 63, Ouachita, LA
Built 1985 Load: 36.9 t ADT: 354
St. Andrews Blvd.
FairOver: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
Built 1997 Load: 36.9 t ADT: 300
St. Andrews Blvd.
FairOver: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
Built 1997 Load: 36.9 t ADT: 300
US0167
FairOver: CREEK
1.0 MI. S OF LA 9, Union, LA
Built 2012 Load: 36.9 t ADT: 422
Leggitt Crossing
FairOver: LYON BAYOU
0.8 MI E of LA 588, West Carroll, LA
Built 1997 Load: 36.9 t ADT: 425
LA0013
FairOver: STREETS & R.R. TRACKS
.01 MI SOUTH OF US 90, Acadia, LA
Built 1982 Load: 37.2 t ADT: 7,361
LA0026
FairOver: OUISKA CHITTO CK.
4.22 MI. E OF INT LA377, Allen, LA
Built 1975 Load: 37.2 t ADT: 2,151
LA1152
FairOver: CREEK
0.7 MI W OF US 165, Allen, LA
Built 1970 Load: 37.2 t ADT: 511
LA0308
FairOver: BAYOU VALANCE
0.20 MI N JCT LA 1011, Assumption, LA
Built 1982 Load: 37.2 t ADT: 4,729
LA0403
FairOver: BAYOU LAFOURCHE
0.01 Mi E of LA 1, Assumption, LA
Built 1972 Load: 37.2 t ADT: 347
LA0402
FairOver: BAYOU ST;VINCENT.
2.8 M SE of LA 1&LA 70, Assumption, LA
Built 1980 Load: 37.2 t ADT: 174
LA0012
FairOver: BECKWITH CREEK
4.2 MI E of LA 27, Beauregard, LA
Built 1961 Load: 37.2 t ADT: 4,041
LA0012
FairOver: HICKORY BRANCH
3.2 MI W of US 171, Beauregard, LA
Built 1993 Load: 37.2 t ADT: 3,530
LA0394
FairOver: CREEK
8.77 MI. E OF US171, Beauregard, LA
Built 1973 Load: 37.2 t ADT: 490
LA0110
FairOver: CREEK
1.8 MI W OIF US 171, Beauregard, LA
Built 1948 Load: 37.2 t ADT: 2,079
LA0147
FairOver: DRAIN
5.6 MI NORTH OF LA 155, Bienville, LA
Built 1980 Load: 37.2 t ADT: 1,988
LA0147
FairOver: DRAIN
1.97 MI WEST OF LA 815, Bienville, LA
Built 1980 Load: 37.2 t ADT: 1,988
LA0508
FairOver: HURRICANE CREEK
0.3 MI EAST OF LA 507, Bienville, LA
Built 1979 Load: 37.2 t ADT: 475
LA0516
FairOver: KEPLER CREEK
5.50 MI EAST OF LA 154, Bienville, LA
Built 1980 Load: 37.2 t ADT: 178
US0071
FairOver: LOGGY BAYOU
.75 MI SOUTH OF LA 515, Bossier, LA
Built 1990 Load: 37.2 t ADT: 816
LA0157
FairOver: FOX SKIN BAYOU
0.1 MI SOUTH OF LA 614, Bossier, LA
Built 1979 Load: 37.2 t ADT: 5,436
I0220
FairOver: ST.LOUIS-S.W.R.R.
2.51 MI EAST OF LA 3049, Bossier, LA
Built 1978 Load: 37.2 t ADT: 13,700
LA0537
FairOver: DRY BAYOU
2.43 MI NORTH OF LA 2, Bossier, LA
Built 1983 Load: 37.2 t ADT: 21
LA0537
FairOver: FLOAT CANAL
3.33 MI NORTH OF LA 2, Bossier, LA
Built 1983 Load: 37.2 t ADT: 21
LA3049
FairOver: CREEK
4.7 MI NORTH OF LA 169, Caddo, LA
Built 1978 Load: 37.2 t ADT: 399
LA3049
FairOver: HORSE SHOE BAYOU
.8 MI NORTH OF LA 530, Caddo, LA
Built 1978 Load: 37.2 t ADT: 399
LA3132
FairOver: BRUSH BAYOU
1.1 MI. E. OF US 171, Caddo, LA
Built 1979 Load: 37.2 t ADT: 53,886
I0020
FairOver: CROSS BAYOU
3.04 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 37.2 t ADT: 98,318
I0020
FairOver: CROSS BAYOU
3.04 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 37.2 t ADT: 98,318
I0049
FairOver: HOLLYWOOD AVENUE
0.9 M. N. OF LA 511, Caddo, LA
Built 1993 Load: 37.2 t ADT: 87,568
LA3059
FairOver: BURT BAYOU
4.8 MI E of US 171, Calcasieu, LA
Built 1976 Load: 37.2 t ADT: 2,383
I0010
FairOver: HAMPTONS COULEE
0.08 MI N OF I-10 WB, Calcasieu, LA
Built 1966 Load: 37.2 t ADT: 3,799
LA0126
FairOver: CREEK
2.0 MI EAST OF LA 3239, Caldwell, LA
Built 1971 Load: 37.2 t ADT: 1,092
LA0161
FairOver: LITTLE CORNEY BAYOU RELF
3.73 MI EAST OF LA 2 ALT, Claiborne, LA
Built 1980 Load: 37.2 t ADT: 836
LA0146
FairOver: SUGAR CREEK RELIEF
1.0 MI EAST OF LA 533, Claiborne, LA
Built 1979 Load: 37.2 t ADT: 1,360
LA3062
FairOver: DRAIN
.19 MI SOUTH OF LA 2, Claiborne, LA
Built 1975 Load: 37.2 t ADT: 1,619
LA3062
FairOver: BEAVER BRANCH
0.25 MI West of US 79, Claiborne, LA
Built 1975 Load: 37.2 t ADT: 1,619
LA0518
FairOver: WALKER CREEK RELIEF
.53 MI EAST OF LA 9, Claiborne, LA
Built 1981 Load: 37.2 t ADT: 622
LA0518
FairOver: WALKER CREEK BRIDGE
.56 MI EAST OF LA 9, Claiborne, LA
Built 1981 Load: 37.2 t ADT: 622
LA0534
FairOver: BRANCH
1.0 MI SOUTH OF LA 2, Claiborne, LA
Built 1982 Load: 37.2 t ADT: 135
LA0534
FairOver: CREEK
2.5 MI NORTH OF LA 534-S, Claiborne, LA
Built 1971 Load: 37.2 t ADT: 118
LA3015
FairOver: DRAIN
1.89 MI EAST OF LA 5, De Soto, LA
Built 1972 Load: 37.2 t ADT: 1,157
LA3015
FairOver: BAYOU GRAND CANE
7.7 MI EAST OF LA 5, De Soto, LA
Built 1977 Load: 37.2 t ADT: 581
LA3015
FairOver: BAYOU GRAND CANE RELIEF
7.75 MI EAST OF LA 5, De Soto, LA
Built 1977 Load: 37.2 t ADT: 581
LA3015
FairOver: COOK CREEK
8.36 MI EAST OF LA 5, De Soto, LA
Built 1977 Load: 37.2 t ADT: 581
Showing 4,951-5,000 of 12,699 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |