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
Burliegh Rd
FairOver: Delahoussaye Canal
1.1 Mi S. of La 182, Iberia, LA
Built 1990 Load: 36.6 t ADT: 56
Coulee Rd
FairOver: Jacks Coulee
1.3 Mi. E. of La 83, Iberia, LA
Built 1985 Load: 36.6 t ADT: 66
Migues Rd
FairOver: Bayou Petite Anse
2.3 Mi. W. Of La 329, Iberia, LA
Built 1984 Load: 36.6 t ADT: 646
Leon Landry Rd
FairOver: Armenco Branch Canal
1.6 Mi. N. of La 675, Iberia, LA
Built 1985 Load: 36.6 t ADT: 56
Landry Rd
FairOver: Armenco Branch Canal
1.0 Mi. NW. of La 674, Iberia, LA
Built 1984 Load: 36.6 t ADT: 289
CHATHAM CEM RD
FairOver: CASTOR CREEK
1.7 MI. NE INT. 455, Jackson, LA
Built 1984 Load: 36.6 t ADT: 125
BELLARD ROAD
FairOver: EAST BAYOU LACASSINE
0.8 M W of LA 99, Jefferson Davis, LA
Built 1988 Load: 36.6 t ADT: 70
KOLL ROAD
FairOver: GUM GULLY
0.8 MI E. OF FARM SUP RD, Jefferson Davis, LA
Built 1999 Load: 36.6 t ADT: 200
ROSTROM ROAD
FairOver: GULLY
0.4 MI N of ESTES RD, Jefferson Davis, LA
Built 1977 Load: 36.6 t ADT: 90
E Kaliste Saloom
FairOver: COULEE DES POCHES
0.6 SW of US 90, Lafayette, LA
Built 1991 Load: 36.6 t ADT: 12,400
LA0830-2
FairOver: CREEK
.44 MI NORTH OF US 425, Morehouse, LA
Built 1994 Load: 36.6 t ADT: 1,291
FRANK BELL RD
FairOver: BAYOU GALION
5.4 MI. E. INT. 396, Morehouse, LA
Built 1983 Load: 36.6 t ADT: 70
DEHLCO RD
FairOver: BEE BAYOU
1.6 MI E of LA 425, Richland, LA
Built 1993 Load: 36.6 t ADT: 100
Lake Rd
FairOver: CD & N CANAL
2.53 Mi E of La 87, St. Mary, LA
Built 1984 Load: 36.6 t ADT: 50
Lagrange Rob. Rd
FairOver: YOKELY BAYOU
0.3 Mi W. Chatsworth rd, St. Mary, LA
Built 1984 Load: 36.6 t ADT: 50
Labau St.
FairOver: CHOUPIQUE BAYOU
0.4 Mi. SW of US 90 Front, St. Mary, LA
Built 1984 Load: 36.6 t ADT: 200
LA0437
FairOver: BOGUE FALAYA RIVER
1.35 MILES NORTH US 190, St. Tammany, LA
Built 2003 Load: 36.6 t ADT: 4,871
Daney St
FairOver: STREET OVER W-14 CANAL
0.3 MILE E. OF 3RD STREET, St. Tammany, LA
Built 1984 Load: 36.6 t ADT: 10
W. Dubuisson
FairOver: TRIBUTARY TO LIBERTY BAY
LA 433-E REILEY RD .93 MI, St. Tammany, LA
Built 1986 Load: 36.6 t ADT: 229
Military Rd
FairOver: PUSHEPATAPA CREEK
1.8 MI. W OF HWY 21, Washington, LA
Built 1998 Load: 36.6 t ADT: 340
West St
FairOver: MILE CREEK
0.4 MI W OF HWY 79-8, Webster, LA
Built 1930 Load: 36.6 t ADT: 4,200
Bounds Rd
FairOver: BRUSHY CREEK
0.2 MI. W. OF US 371, Webster, LA
Built 1999 Load: 36.6 t ADT: 111
Beluah
FairOver: DUGDEMONA RIVER
2.73 MI. NW OF LA 1230, Winn, LA
Built 1984 Load: 36.6 t ADT: 291
WALKER RD
FairOver: CREEK
1.6 MI NORTH OF US 190, Allen, LA
Built 1997 Load: 36.9 t ADT: 150
COTTONGIN CASTOR
FairOver: BLUE BAYOU
0.8 MI E OF DARBORNE LN, Allen, LA
Built 1999 Load: 36.9 t ADT: 180
WARD RD
FairOver: CASTER CREEK
2.6 MI EAST OF US 165, Allen, LA
Built 1999 Load: 36.9 t ADT: 358
SOAPSTONE RD
FairOver: SOAPSTONE CREEK
2.8 MI NORTH OF LA 112, Allen, LA
Built 1997 Load: 36.9 t ADT: 306
I0010
FairOver: BAYOU MANCHAC
I0010, Ascension, LA
Built 1970 Load: 36.9 t ADT: 45,150
I0010
FairOver: BAYOU MANCHAC
I0010, Ascension, LA
Built 1970 Load: 36.9 t ADT: 45,150
Boggy Bayou Rd
FairOver: LITTLE RIVER
3 MI E. LA 1190 & LA 452, Avoyelles, LA
Built 1996 Load: 36.9 t ADT: 250
CAMP EDGEWOOD RD
FairOver: HICKORY CREEK RELIEF
2.8 MI WEST OF US 171, Beauregard, LA
Built 1994 Load: 36.9 t ADT: 700
CAMP EDGEWOOD RD
FairOver: BECKWITH CREEK
3.8 MI SE OF LA 12, Beauregard, LA
Built 1995 Load: 36.9 t ADT: 670
TEXAS EASTERN RD
FairOver: BOGGY CREEK
2.4 MI SOUTH OF US 190, Beauregard, LA
Built 1992 Load: 36.9 t ADT: 340
MEMORIAL CHURCH RD
FairOver: BARNES CREEK
0.6 MI E. OF US 171, Beauregard, LA
Built 1992 Load: 36.9 t ADT: 335
MENONNITE RD
FairOver: BARNES CREEK
1.0 MI W OF US 171, Beauregard, LA
Built 1996 Load: 36.9 t ADT: 420
PUMPKIN LOOP
FairOver: PUMPKIN BRANCH
0.4 MI NORTH OF LA 394, Beauregard, LA
Built 1992 Load: 36.9 t ADT: 170
GRAYBOW RD
FairOver: BUSHEY BRANCH
2.8 MI SW OF LA 3099, Beauregard, LA
Built 1996 Load: 36.9 t ADT: 480
EWELL COOLEY RD
FairOver: DEER CREEK
0.3 M E OF VIRGIL SIMS RD, Beauregard, LA
Built 1992 Load: 36.9 t ADT: 195
LIBICK RD
FairOver: TROUT CREEK
0.3 MI S of US 190, Beauregard, LA
Built 1996 Load: 36.9 t ADT: 150
Camp Zion Rd
FairOver: Clarke Bayou
2.5 MI EAST OF LA 157, Bossier, LA
Built 1985 Load: 36.9 t ADT: 500
LA0526
FairOver: DRAINAGE CANAL
2.43 MI N OF JCT LA3132, Caddo, LA
Built 1978 Load: 36.9 t ADT: 19,314
LA0526
FairOver: DRAINAGE CANAL
2.43 MI N OF JCT LA 3132, Caddo, LA
Built 1978 Load: 36.9 t ADT: 19,314
W. VERDINE RD
FairOver: GUM SLOUGH
0.1 MI. N. OF US 90, Calcasieu, LA
Built 2011 Load: 36.9 t ADT: 200
HECKER RD
FairOver: ARCENEAUX BAYOU
0.4 MI N of River Rd, Calcasieu, LA
Built 1993 Load: 36.9 t ADT: 814
BANKENS RD
FairOver: LITTLE RIVER RELIEF
2.6 MI E OF LA 27, Calcasieu, LA
Built 1995 Load: 36.9 t ADT: 1,076
COFFEY RD
FairOver: Indian Bayou
0.2 MI E of SUTHERLAND RD, Calcasieu, LA
Built 1997 Load: 36.9 t ADT: 4,016
HOLBROOK PARK RD
FairOver: RIVER
1.8 MI EAST OF LA 27, Calcasieu, LA
Built 1995 Load: 36.9 t ADT: 618
Friendship Rd
FairOver: MCCASLAND CREEK
6.0 MI S. OF LA 9, Claiborne, LA
Built 1998 Load: 36.9 t ADT: 100
SCHROCK RD
FairOver: BUCK BAYOU
1.0 MI E OF BAYOU MACON, East Carroll, LA
Built 1987 Load: 36.9 t ADT: 130
Angus Rd.
FairOver: JOE MARCEL BAYOU
1.80 Mi W of La 29, Evangeline, LA
Built 1984 Load: 36.9 t ADT: 65
Showing 4,901-4,950 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 |