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
Johns Gin Rd
FairOver: JOHNS GIN,TR MILL CREEK
3 MI SO LA 525, Caddo, LA
Built 1982 Load: 74.5 t ADT: 28
HAWTHORNE DRIVE
FairOver: BROOKWOOD DITCH
0.1 MI E OF US 171, Caddo, LA
Built 1974 Load: 74.5 t ADT: 600
MILLICENT WAY
FairOver: LATERAL C-6
0.34 MI SW OF LA 1, Caddo, LA
Built 1978 Load: 74.5 t ADT: 8,214
OLD SPANISH TRAIL
FairOver: GULLY
0.7 MI W of LA 379, Calcasieu, LA
Built 1993 Load: 74.5 t ADT: 8,204
S PERKINS FERRY RD
FairOver: CREEK
1.39 MI S. OF LA 378, Calcasieu, LA
Built 1993 Load: 74.5 t ADT: 309
GREEN MOORE RD
FairOver: HOUSTON RIVER
0.8 MI SOUTH OF LA 12, Calcasieu, LA
Built 2003 Load: 74.5 t ADT: 554
PAUL WHITE RD
FairOver: COON GULLY
3.1 MI N of LA 378, Calcasieu, LA
Built 1986 Load: 74.5 t ADT: 1,185
Hester Rd
FairOver: CREEK
0.8 MI N of LA 547, Caldwell, LA
Built 1988 Load: 74.5 t ADT: 80
Rex Poole Rd
FairOver: Stokes Creek
1.6 M NW of LA8, Catahoula, LA
Built 1997 Load: 74.5 t ADT: 250
LA0002-A
FairOver: CREEK
3.83 MI NW OF LA 9, Claiborne, LA
Built 1976 Load: 74.5 t ADT: 389
LA0002-A
FairOver: LEADBETTER CREEK
0.55 MI NW OF LA 9, Claiborne, LA
Built 1976 Load: 74.5 t ADT: 389
LA0146
FairOver: BRANCH
11.8 MI SE OF HOMER, Claiborne, LA
Built 1979 Load: 74.5 t ADT: 1,360
Line Rd
FairOver: BUCK CREEK
0.43 MI W. OF LA 534, Claiborne, LA
Built 1986 Load: 74.5 t ADT: 50
Columbia Rd
FairOver: LITTLE CORNEY CREEK TRIB
3.44 M EAST OF LA 521, Claiborne, LA
Built 1990 Load: 74.5 t ADT: 250
LA0510
FairOver: CREEK
1.45 MI S OF US 84, De Soto, LA
Built 1981 Load: 74.5 t ADT: 233
Jesse Latin Rd
FairOver: EDWARDS BAYOU
3.5 MI. E/N.E. OF LA 5, De Soto, LA
Built 2006 Load: 74.5 t ADT: 125
HOLLYBROOK RD
FairOver: WINTERS BAYOU
0.9 MI EAST OF HWY 134, East Carroll, LA
Built 1987 Load: 74.5 t ADT: 120
LA0013
FairOver: BAYOU
5.0M NORTH OF LA 10, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 6,976
LA0013
FairOver: BAYOU
5.55M NORTH OF LA 10, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 3,516
LA0013
FairOver: DRAINAGE
3.3 MI N of LA106/ LA3187, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 6,976
LA0748
FairOver: BAYOU PETITE
2.0 Mi W. of La 363, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 1,397
LA1161
FairOver: DRAIN
0.7 MI N of LA 104, Evangeline, LA
Built 1962 Load: 74.5 t ADT: 1,953
Natchitoches Rd.
FairOver: COULEE
0.40 Mi NW of US 167, Evangeline, LA
Built 1985 Load: 74.5 t ADT: 445
LA0004
FairOver: CREEK
.02 MI WEST OF LA 578, Franklin, LA
Built 1955 Load: 74.5 t ADT: 1,511
LA0500
FairOver: FOUR-MILE BRANCH
1.48 MI. EAST OF US 167, Grant, LA
Built 1998 Load: 74.5 t ADT: 620
LA0500
FairOver: CREEK
6.06 MI. EAST OF US 167, Grant, LA
Built 1998 Load: 74.5 t ADT: 620
LA0122
FairOver: DRAIN
4.96 MI. EAST OF US 71, Grant, LA
Built 1993 Load: 74.5 t ADT: 683
Race Track Rd
FairOver: GRAYS CREEK
1.71 M. NW OF JCT US 167, Grant, LA
Built 1993 Load: 74.5 t ADT: 82
Perry Loop Rd
FairOver: CREEK
2.19 MI. SE OF LA 8, Grant, LA
Built 1986 Load: 74.5 t ADT: 266
LA0077
FairOver: BAYOU MARINGOUIN
0.01 M NE of LA 76, Iberville, LA
Built 1964 Load: 74.5 t ADT: 4,376
BOATNER RD
FairOver: DRY CREEK
.5 MI. S. HWY. 810, Jackson, LA
Built 1983 Load: 74.5 t ADT: 50
CENTURY LOOP RD
FairOver: DRAIN TO CASTOR CREEK
1.6 MI. SW INT. 418, Jackson, LA
Built 1985 Load: 74.5 t ADT: 98
VERNON EROS RD
FairOver: POOL BRANCH
3.5 MI. N-NW INT. 418, Jackson, LA
Built 1985 Load: 74.5 t ADT: 155
VERNON EROS RD
FairOver: GUICE BRANCH
8.2 MI. NW INT. 418, Jackson, LA
Built 1994 Load: 74.5 t ADT: 155
LA3134
FairOver: DRAIN DITCH
1 MILE NORTH OF INT WW, Jefferson, LA
Built 1985 Load: 74.5 t ADT: 5,599
TUPPER ROAD
FairOver: W GRAND MARAIS BAYOU
0.1 MI W of LA 395, Jefferson Davis, LA
Built 2003 Load: 74.5 t ADT: 60
LA3235
FairOver: DRAIN CANAL
2.8 MILES NORTH OF BAYOU, Lafourche, LA
Built 1985 Load: 74.5 t ADT: 6,255
US0165
FairOver: LITTLE RIVER RELIEF
0.32 MILES FROM GRANT PAR, LaSalle, LA
Built 2008 Load: 74.5 t ADT: 4,538
Randall Lane
FairOver: BUSHY CREEK
0.5 MILES EAST OF LA.3071, LaSalle, LA
Built 2015 Load: 74.5 t ADT: 100
Tingle Rd
FairOver: MUDDY PRONG
0.8 MILES SOUTH OF LA 8, LaSalle, LA
Built 1984 Load: 74.5 t ADT: 70
Melody Acres
FairOver: KITCHEN CREEK
LOG MI 2.45 FR 541 TO 543, LaSalle, LA
Built 2001 Load: 74.5 t ADT: 20
Pleasant Ridge Rd
FairOver: FRANKLIN BRANCH
LOG MI. 1.4 FR 636 TO 638, LaSalle, LA
Built 2000 Load: 74.5 t ADT: 50
US0167
FairOver: BAYOU D'ARBONNE
1.0 M. N OF N JCT. LA 822, Lincoln, LA
Built 2010 Load: 74.5 t ADT: 422
LA0507
FairOver: CREEK
3.73 MI N BIENVILLE PAR, Lincoln, LA
Built 1979 Load: 74.5 t ADT: 868
LA0563
FairOver: CREEK
5.43 MI E of LA 544, Lincoln, LA
Built 1978 Load: 74.5 t ADT: 968
LA0563
FairOver: CREEK
7.17 MI E of LA 544, Lincoln, LA
Built 1978 Load: 74.5 t ADT: 968
Forrest Dellatte
FairOver: CANAL
1.3 MI SE JCT LA16 & I-12, Livingston, LA
Built 1985 Load: 74.5 t ADT: 800
Stafford Rd
FairOver: ANTIOCH CREEK
4.0M NE OF SATSUMA EXIT, Livingston, LA
Built 1993 Load: 74.5 t ADT: 250
Horseshoe N.
FairOver: TAYLOR BRANCH
3.1 MI EN OF JCT 43 & 442, Livingston, LA
Built 1990 Load: 74.5 t ADT: 500
US0080
FairOver: CREEK
6.15 MI E RICHLAND PAR LN, Madison, LA
Built 2003 Load: 74.5 t ADT: 1,181
Showing 6,551-6,600 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 |