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
I0010
FairOver: HAMPTONS COULEE
1.1 MI S OF US 90, Calcasieu, LA
Built 1966 Load: 31.1 t ADT: 3,799
Walker Ferry Rd
FairOver: CLEAR CREEK
0.72 MI. SE OF PERRY RD., Grant, LA
Built 2003 Load: 31.1 t ADT: 330
LAPALCO BLVD
FairOver: BAYOU FATMA
0.4 MI. W. OF MANHAT, Jefferson, LA
Built 1960 Load: 31.1 t ADT: 2,000
Vintage Dr
FairOver: DUNCAN CANAL
0.50 M WEST OF LA 49, Jefferson, LA
Built 1990 Load: 31.1 t
Ramblewood Dr.
FairOver: Anselm Coulee
.2 Mi E of Kaliste Saloom, Lafayette, LA
Built 1985 Load: 31.1 t ADT: 185
Bayou Blue Bypass
FairOver: HOLLYWOOD CANAL
0096 LOG MI FROM INT, Lafourche, LA
Built 1976 Load: 31.1 t ADT: 2,019
FRAZIER RD
FairOver: CURLY CREEK
1.3 MI NE of US 167, Lincoln, LA
Built 2005 Load: 31.1 t ADT: 900
LA0406
FairOver: DRAIN CANAL
.59 MI EAST OF LA 407, Orleans, LA
Built 1954 Load: 31.1 t ADT: 12,412
I0010
FairOver: DRAIN CANAL
6.9 MI EAST OF I-510, Orleans, LA
Built 1967 Load: 31.1 t ADT: 1,600
HARRISON AVE
FairOver: CITY PARK LAGOON
0.6MI.W.OF WISNER BL, Orleans, LA
Built 1939 Load: 31.1 t
PARKWOOD DR
FairOver: BLACK BAYOU
WEST MONROE, Ouachita, LA
Built 1980 Load: 31.1 t ADT: 300
LA3170
FairOver: CHATLIN LAKE CANAL
2.08 MI. EAST OF US 71, Rapides, LA
Built 1963 Load: 31.1 t ADT: 7,317
LA0854
FairOver: TURKEY CREEK
7.7 MI EAST OF LA 183, Richland, LA
Built 2002 Load: 31.1 t ADT: 529
Sawmill Rd.
FairOver: COULEE DATIDER
1.3 Mi. W of LA 341, St. Martin, LA
Built 1975 Load: 31.1 t ADT: 1,100
I0055
FairOver: LITTLE NAT RIVER
I0055, Tangipahoa, LA
Built 1968 Load: 31.1 t ADT: 23,562
Industrial Drive
FairOver: COOLEY CREEK
0.7 MI SE OF LA 7, Webster, LA
Built 1995 Load: 31.1 t ADT: 68
Old Arcadia Rd
FairOver: TRIB TO COOLEY BRANCH
0.3 MI E OF HWY 79, Webster, LA
Built 1930 Load: 31.1 t ADT: 1,041
Wardline Rd
FairOver: BIG BLACK BAYOU
0.7 MI W of LA 878, West Carroll, LA
Built 1999 Load: 31.1 t ADT: 288
LA1231-2
FairOver: CREEK
1.82 MI E JCT US 167, Winn, LA
Built 2002 Load: 31.1 t ADT: 116
Moreau-Plauche Ctf
FairOver: BAYOU DES GLAISES
2.5 MI NE OF PLAUCHEVILLE, Avoyelles, LA
Built 1983 Load: 31.4 t ADT: 570
HONEYSUCKLE ST
FairOver: PALMETTO CREEK
0.1 MI N. of LA 3099, Beauregard, LA
Built 2012 Load: 31.4 t ADT: 11
US0080
FairOver: CREEK
.08 MI WEST OF US 79, Caddo, LA
Built 1936 Load: 31.4 t ADT: 3,924
FDR 900
FairOver: TRIB. CORNEY CREEK
4.21 MI. W. OF LA. 9, Claiborne, LA
Built 1974 Load: 31.4 t ADT: 120
FDR 900
FairOver: FIELD BRANCH TRIB.
3.68 MI. W. OF LA. 9, Claiborne, LA
Built 1974 Load: 31.4 t ADT: 120
Bluebonnet Blvd
FairOver: DAWSON CREEK/BLUEBONNET
2.15 MI N OF BURBANK, East Baton Rouge, LA
Built 1978 Load: 31.4 t ADT: 24,300
W. ESPLANADE AVE
FairOver: SUBURBAN CANAL
0.1 MI. E OF HOUMA BLVD, Jefferson, LA
Built 2002 Load: 31.4 t
PHILPET RD
FairOver: LAPINE CREEK
4.24 MI E of LA 557, Ouachita, LA
Built 1993 Load: 31.4 t ADT: 715
LA0115
FairOver: BIG CREEK
5.66 MI. NORTH OF LA 107, Rapides, LA
Built 1980 Load: 31.4 t ADT: 2,775
LA0095
FairOver: CREEK
1.52 MI NORTH OF US 190, St. Landry, LA
Built 1976 Load: 31.4 t ADT: 1,756
Beau Rd
FairOver: COULEE
0.8 MI S. OF LA 699, Vermilion, LA
Built 2014 Load: 31.4 t ADT: 725
Perry Irwin Road
FairOver: Tom Branch
1.2 Mi. E of LA 438, Washington, LA
Built 2018 Load: 31.4 t ADT: 180
US0190
FairOver: SABINE RIVER
3.67 MI. W OF INT LA389, Beauregard, LA
Built 1981 Load: 31.8 t ADT: 3,126
I0020
FairOver: L & N W RAILROAD
0.56 MI WEST OF LA 154, Bienville, LA
Built 1986 Load: 31.8 t ADT: 37,514
I0020
FairOver: L & NW R/R
.56 MI WEST OF LA 154, Bienville, LA
Built 1964 Load: 31.8 t ADT: 37,514
Piney Woods Rd
FairOver: KEPLER CREEK LAKE
1.0M EAST OF LA 507, Bienville, LA
Built 1991 Load: 31.8 t ADT: 190
LA3036
FairOver: CROSS BAYOU
.88 MI NORTH OF US 80, Caddo, LA
Built 1960 Load: 31.8 t ADT: 7,587
LA3036
FairOver: CROSS BAYOU
.2 MI south OF HWY 1, Caddo, LA
Built 1960 Load: 31.8 t ADT: 10,312
US0171
FairOver: BOGGY BAYOU
6.6 MI. N.OF LA 3276, Caddo, LA
Built 1967 Load: 31.8 t ADT: 8,575
LA0170
FairOver: OIL BRANCH
1.3 MILE EAST OF LA 1, Caddo, LA
Built 2008 Load: 31.8 t ADT: 1,209
I0020
FairOver: BROADWAY ST
2.4 MI EAST OF I-220, Caddo, LA
Built 1965 Load: 31.8 t ADT: 98,318
I0020
FairOver: BROADWAY ST
2.4 MI EAST OF I-220, Caddo, LA
Built 1965 Load: 31.8 t ADT: 98,318
I0020
FairOver: KINGS HWY & PORTLAND AVE
.3 MI EAST OF US 71, Caddo, LA
Built 1965 Load: 31.8 t ADT: 98,318
I0020
FairOver: KCS & SL&SW RR SPRING
.17 MI EAST OF LA 1, Caddo, LA
Built 1965 Load: 31.8 t ADT: 87,567
LA0526
FairOver: BRUSH BAYOU
1.0 MI E JCT LA 3204, Caddo, LA
Built 1984 Load: 31.8 t ADT: 16,911
CROSBY ROAD
FairOver: HOLLYWOOD DITCH
0.1 MI EAST OF KENNEDY AV, Caddo, LA
Built 1960 Load: 31.8 t ADT: 150
LA0109
FairOver: BESS BRANCH
4.3 MI N OF LA 12, Calcasieu, LA
Built 2010 Load: 31.8 t ADT: 1,749
LA0109
FairOver: BAYOU
2.1 MI N OF LA 12, Calcasieu, LA
Built 2010 Load: 31.8 t ADT: 1,749
I0010
FairOver: V.E. WASHINGTON AVE
7.4 MI E OF LA 108, Calcasieu, LA
Built 1961 Load: 31.8 t ADT: 71,437
I0010
FairOver: MO PACIFIC RR
1.8 MI W OF US 171, Calcasieu, LA
Built 1961 Load: 31.8 t ADT: 11,437
I0010
FairOver: SHATTUCK ST
0.4 MI E OF US 90B, Calcasieu, LA
Built 1963 Load: 31.8 t ADT: 71,437
Showing 3,601-3,650 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 |