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
Ellington Rd
FairOver: ASH SLOUGH
LOGMI 0.09 FR INT OF LA 4, Franklin, LA
Built 1995 Load: 24.9 t ADT: 30
US0090-B
FairOver: RAMP MA-2
.7 MI EAST OF LA 23, Jefferson, LA
Built 1985 Load: 24.9 t ADT: 15,955
LAPALCO BLVD
FairOver: VERRET CANAL
0.3MI.E.OF MANHATTAN, Jefferson, LA
Built 1976 Load: 24.9 t ADT: 30,000
LAPALCO BLVD
FairOver: FORTADO CANAL
0.1MI.W.OF WALL BLVD, Jefferson, LA
Built 1960 Load: 24.9 t ADT: 5,000
Maplewood Dr
FairOver: GARDERE CANAL
0.3 MI. S. OF US90 FRONTA, Jefferson, LA
Built 1983 Load: 24.9 t ADT: 1,000
POWER BLVD
FairOver: CANAL NO. 1
0.8 MI N. OF W. ESPLANADE, Jefferson, LA
Built 1983 Load: 24.9 t
TOPSY BELL RD.
FairOver: MARSH BAYOU
5.8 MI E of US 171, Jefferson Davis, LA
Built 2003 Load: 24.9 t ADT: 1,800
LA3184
FairOver: BNSF/Walker Rd
0.94 Mi S of I-10, Lafayette, LA
Built 1983 Load: 24.9 t ADT: 26,010
Hoffpauir Rd.
FairOver: INDIAN BAYOU
1.71 Mi SE of LA 342, Lafayette, LA
Built 1970 Load: 24.9 t ADT: 80
Guilbeau Rd.
FairOver: COULEE
0.30 Mi NW of US 167, Lafayette, LA
Built 1983 Load: 24.9 t ADT: 6,000
W. Congress
FairOver: COULEE
0.01 Mi E of AMB Caffery, Lafayette, LA
Built 1984 Load: 24.9 t ADT: 29,990
Rue Bon Secours
FairOver: COULEE
0.40 Mi W of La 93, Lafayette, LA
Built 1992 Load: 24.9 t ADT: 840
Laser Ln.
FairOver: COULEE
1.23 Mi SE of LA 182, Lafayette, LA
Built 1985 Load: 24.9 t ADT: 211
FDR 272
FairOver: CREEK
NATIONAL FOREST ROAD, Rapides, LA
Built 1973 Load: 24.9 t ADT: 30
Red Store Hill Rd
FairOver: BAYOU JEAN DE JEAN
0.05 MI. NORTH OF LA 121, Rapides, LA
Built 1997 Load: 24.9 t ADT: 240
LA0015
FairOver: DRAIN
1.16 MI WEST OF LA 137, Richland, LA
Built 1938 Load: 24.9 t ADT: 2,198
LA0355
FairOver: Bayou Teche
0.16 MI W OF LA 347, St. Martin, LA
Built 1949 Load: 24.9 t ADT: 4,721
LA1077
FairOver: CANAL
2 MILES SOUTH OF LA 22, St. Tammany, LA
Built 2013 Load: 24.9 t ADT: 1,019
I0012
FairOver: PONCHATOLAWA CREEK
0.7 M E OF US 190, St. Tammany, LA
Built 1976 Load: 24.9 t ADT: 29,236
Howes Cemt. Rd
FairOver: CREEK
6.4 MI SE OF LA 3158 EXIT, Tangipahoa, LA
Built 1995 Load: 24.9 t ADT: 4
CYPRESS CHURCH RD
FairOver: CYPRESS CREEK
5.68 MI. SE OF LA 464, Vernon, LA
Built 1987 Load: 24.9 t ADT: 130
Mike Fisher Rd
FairOver: GORMAN CREEK
2.6M NORTH OF LA 16, Washington, LA
Built 1993 Load: 24.9 t ADT: 377
Carter Rd
FairOver: CARTER RD,177,PRAIRIE B
1.4 MI E OF HWY 163, Webster, LA
Built 1979 Load: 24.9 t ADT: 207
S. Westport Dr.
FairOver: Drainage Canal
2.0 Mi. E. of LA 415, West Baton Rouge, LA
Built 1970 Load: 24.9 t ADT: 3,500
Commercial Dr
FairOver: Drainage Canal
1.4 Mi. E. of LA 415, West Baton Rouge, LA
Built 1970 Load: 24.9 t ADT: 3,045
S. Westport Dr.
FairOver: Drainage Canal
0.8 Mi. E of LA 415, West Baton Rouge, LA
Built 1970 Load: 24.9 t ADT: 3,500
Commercial Dr
FairOver: Drainage Canal
1.0 Mi. E. of LA 415, West Baton Rouge, LA
Built 1970 Load: 24.9 t ADT: 3,760
Packton-Alexandria
FairOver: CASKEY BRANCH
0.79 MI. WEST OF US 167, Winn, LA
Built 1975 Load: 24.9 t ADT: 130
Gum Springs
FairOver: IATT CREEK
1.0 MI. NORTH OF LA 34, Winn, LA
Built 1965 Load: 24.9 t ADT: 200
Gum Springs
FairOver: Gum Springs Creek
.66 MI. SOUTH OF US 84, Winn, LA
Built 1970 Load: 24.9 t ADT: 550
Coldwater
FairOver: Coldwater Creek
APP. 4.1 MI. NW OF US 84, Winn, LA
Built 1970 Load: 24.9 t ADT: 61
US0165
FairOver: DRAINAGE DITCH
0.5 MI. N. OF LA 26, Allen, LA
Built 2000 Load: 25.3 t ADT: 11,886
LA1156
FairOver: MAB BRANCH
0.9 MI. S OF LA3206, Allen, LA
Built 1979 Load: 25.3 t ADT: 550
BUCK BOWLES RD
FairOver: SONNIER BAYOU
1.1 MI WEST OF LA 26, Allen, LA
Built 2001 Load: 25.3 t ADT: 150
PALESTINE RD
FairOver: SIX MILE CREEK
1.9 MI E OF LA 377, Allen, LA
Built 2003 Load: 25.3 t ADT: 609
OLD RIVER RD
FairOver: CARTER CREEK
1.6 MI S of CANEY CREEK R, Beauregard, LA
Built 2002 Load: 25.3 t ADT: 28
SELLERS RD
FairOver: COLE CREEK
0.7 MI S of PHILLIPS RD, Beauregard, LA
Built 2002 Load: 25.3 t ADT: 80
S BEARHEAD RD
FairOver: CREEK
1.7 MI E OF LA 109, Beauregard, LA
Built 2002 Load: 25.3 t ADT: 25
LONGVILLE RD
FairOver: BARNES CREEK
2.2 MI E. of US 171, Beauregard, LA
Built 1983 Load: 25.3 t ADT: 250
TOWNSLEY RD
FairOver: DEER CREEK
2.6 MI SW OF LA 26, Beauregard, LA
Built 2006 Load: 25.3 t ADT: 350
LA0002
FairOver: CREEK
.09 MI EAST OF LA 3, Bossier, LA
Built 1960 Load: 25.3 t ADT: 4,236
LA0527
FairOver: RED CHUTE BAYOU
3.16 MI E JCT US 71-LA527, Bossier, LA
Built 1983 Load: 25.3 t ADT: 1,951
FLOURNOY LUCAS RD
FairOver: BRUSHY BAYOU
1.0 MI. E. OF I-49, Caddo, LA
Built 1975 Load: 25.3 t ADT: 7,518
N. LIGHTNER ST
FairOver: LATERAL L-14
0.1 MI E of LA 383, Calcasieu, LA
Built 2001 Load: 25.3 t ADT: 100
US0165
FairOver: BLACK BAYOU RELIEF
4.0 MILES SOUTH OF LA 4 &, Caldwell, LA
Built 1945 Load: 25.3 t ADT: 12,669
S PUMPKIN RIDGE RD
FairOver: CATTLE CROSSING
1.0 MI N OF LA 82, Cameron, LA
Built 1976 Load: 25.3 t ADT: 658
LA0037
FairOver: COMITE RIVER
LA0037, East Baton Rouge, LA
Built 1961 Load: 25.3 t ADT: 22,627
PATRIOT ST X-OVER
FairOver: PATRIOT STREET CANAL
.7 MI E. OF BARATARIA BLV, Jefferson, LA
Built 1980 Load: 25.3 t ADT: 800
US0165
FairOver: UNION PACIFIC RR OVERPAS
.7 MI NORTH OF US 90, Jefferson Davis, LA
Built 2004 Load: 25.3 t ADT: 3,162
LA0026
FairOver: DRAINAGE
3.7 M S of LA 1126, Jefferson Davis, LA
Built 1974 Load: 25.3 t ADT: 5,622
Showing 2,801-2,850 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 |