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
LA0010
GoodOver: CREEK
2.46 MI. EAST OF LA 377, Vernon, LA
Built 2005 Load: 32.4 t ADT: 2,773
LA0117
GoodOver: CREEK
3.13 MI. NORTH OF LA 111, Vernon, LA
Built 1962 Load: 32.4 t ADT: 1,513
LA0117
GoodOver: BELL BRANCH
4.54 MI. NORTH OF LA 111, Vernon, LA
Built 1962 Load: 32.4 t ADT: 1,513
LA0117
GoodOver: BAYGALL BRANCH
0.02 MI. SOUTH OF LA 465, Vernon, LA
Built 1962 Load: 32.4 t ADT: 1,513
LA0392
GoodOver: HUNTER BRANCH
2.1 MI WEST OF LA 111, Vernon, LA
Built 1965 Load: 32.4 t ADT: 735
LA0111
GoodOver: CREEK
3.2 MI EAST OF LA 392, Vernon, LA
Built 1966 Load: 32.4 t ADT: 937
LA0111
GoodOver: UNNAMED BRANCH
0.45 MI EAST JCT US 171, Vernon, LA
Built 1997 Load: 32.4 t ADT: 937
LA0008
GoodOver: CREEK
2.9 MI WEST OF LA 184, Vernon, LA
Built 1943 Load: 32.4 t ADT: 7,277
LA0028
GoodOver: CREEK
1.7 MI WEST OF LA 121, Vernon, LA
Built 1945 Load: 32.4 t ADT: 6,456
LA0010
GoodOver: BEAR BRANCH
2.4 MI EAST OF US 171, Vernon, LA
Built 1975 Load: 32.4 t ADT: 6,107
WEBSTER MARICLE RD
GoodOver: SIX MILE CREEK, RELIEF
0.75 M. W. OF LA 113, Vernon, LA
Built 2007 Load: 32.4 t ADT: 250
HAWKS RD
GoodOver: ANACOCO BAYOU
4.5 MILES WEST OF US 171, Vernon, LA
Built 2004 Load: 32.4 t ADT: 300
Mitch Rd
GoodOver: BOGGY BRANCH
1.5 MILES EAST OF LA 21, Washington, LA
Built 2010 Load: 32.4 t ADT: 511
Burt Rd
GoodOver: CORURN ROAD
0.5 MILES NORTH OF LA 10, Washington, LA
Built 2010 Load: 32.4 t ADT: 710
LA0021
GoodOver: DRAIN
LA 21, Washington, LA
Built 1932 Load: 32.4 t ADT: 7,160
LA0021
GoodOver: CREEK
2.4 M NE OF LA 1075, Washington, LA
Built 1932 Load: 32.4 t ADT: 7,160
LA0016
GoodOver: CREEK
2.7 MI FR PAR LN ON LA 16, Washington, LA
Built 1968 Load: 32.4 t ADT: 3,985
LA0016
GoodOver: DRAIN
1.9 M NE OF LA 450, Washington, LA
Built 1969 Load: 32.4 t ADT: 3,985
LA0010
GoodOver: CREEK
0.9 MI E LA 16 INTER., Washington, LA
Built 1997 Load: 32.4 t ADT: 10,686
LA0016
GoodOver: CREEK
3.5 MI NW ST. TAM. PAR LN, Washington, LA
Built 2002 Load: 32.4 t ADT: 1,137
LA0016
GoodOver: CREEK
LA 16 1.1 MI SO LA 10, Washington, LA
Built 1979 Load: 32.4 t ADT: 2,087
LA0025
GoodOver: DRAIN
3.9 M S OF LA 38, Washington, LA
Built 1963 Load: 32.4 t ADT: 4,117
LA0025
GoodOver: DRAIN
0.9 M N OF LA 38, Washington, LA
Built 1963 Load: 32.4 t ADT: 2,272
LA0025
GoodOver: DRAIN
2.2 M N OF LA 38, Washington, LA
Built 1963 Load: 32.4 t ADT: 2,272
LA0025
GoodOver: DRAIN
1.3 M S OF LA 438, Washington, LA
Built 1963 Load: 32.4 t ADT: 2,272
LA0025
GoodOver: DRAIN
0.1 M N OF LA 438, Washington, LA
Built 1963 Load: 32.4 t ADT: 2,098
LA0038
GoodOver: DRAIN
1.3 M W OF LA 430, Washington, LA
Built 1968 Load: 32.4 t ADT: 1,706
LA0436
GoodOver: CREEK
0.2 MI EAST JCT LA 1069, Washington, LA
Built 1980 Load: 32.4 t ADT: 3,989
LA0010
GoodOver: DRAIN
0.05 MI N LA 10 & LA 440, Washington, LA
Built 1997 Load: 32.4 t ADT: 3,612
LA1056
GoodOver: DRAIN
0.6 M E OF LA 450, Washington, LA
Built 1966 Load: 32.4 t ADT: 1,085
Tullus Rd
GoodOver: THIGPEN CREEK
1.82 MI EAST OF LA 1072, Washington, LA
Built 2008 Load: 32.4 t ADT: 372
Corken Rd
GoodOver: BONNER CREEK
2.0 MI S/W INT LA 16 & 25, Washington, LA
Built 2001 Load: 32.4 t ADT: 374
Choctaw Rd
GoodOver: BETTS CREEK
2.9MI S, JCT LA62 & LA10, Washington, LA
Built 1987 Load: 32.4 t ADT: 224
King Orchard Rd
GoodOver: LICK CREEK
.5 MI. N. OF LA 2, Webster, LA
Built 2011 Load: 32.4 t ADT: 167
US0079
GoodOver: CREEK
1.23 MI EAST OF LA 159, Webster, LA
Built 1932 Load: 32.4 t ADT: 9,942
US0079
GoodOver: COOLEY BRANCH
1.9 MI EAST OF LA 531, Webster, LA
Built 1932 Load: 32.4 t ADT: 9,942
US0079
GoodOver: CREEK
.44 MI EAST OF LA 518, Webster, LA
Built 1932 Load: 32.4 t ADT: 9,942
LA0164
GoodOver: DRAIN
1.4 MI WEST OF LA 163, Webster, LA
Built 1943 Load: 32.4 t ADT: 3,472
Industrial Drive
GoodOver: DRAIN
2.34 MI SE OF LA 7, Webster, LA
Built 1995 Load: 32.4 t ADT: 68
Industrial Drive
GoodOver: CREEK
2.09 MI SE OF LA 7, Webster, LA
Built 1995 Load: 32.4 t ADT: 68
Sugar Creek Rd
GoodOver: SUGAR CREEK
2.5 MI. N. OF HWY 79, Webster, LA
Built 2001 Load: 32.4 t ADT: 198
Bellvue/Atkins
GoodOver: BODCAU BAYOU
3.8 MI. S. OF US 371, Webster, LA
Built 2006 Load: 32.4 t ADT: 54
Evergreen Rd
GoodOver: TRIBUTARY TO BLACK BAYOU
0.20 MI W OF LA 159, Webster, LA
Built 2001 Load: 32.4 t ADT: 110
3rd St
GoodOver: LITTLE CROOKED CREEK
0.1 MI NORTH OF LA 157, Webster, LA
Built 1996 Load: 32.4 t ADT: 1,500
US0190
GoodOver: US 190 OVER STUMPY BAYOU
2MI E OF P.C. PARISH LINE, West Baton Rouge, LA
Built 1952 Load: 32.4 t ADT: 19,077
LA0415
GoodOver: STREAM NO NAME
0.2 M N of LA 415@LA 413, West Baton Rouge, LA
Built 1926 Load: 32.4 t ADT: 21,189
LA0076
GoodOver: STREAM NO NAME
1.1 M W of LA 415@LA 76, West Baton Rouge, LA
Built 1952 Load: 32.4 t ADT: 7,562
LA0076
GoodOver: DRAIN
.01 Mi. W. of LA 415, West Baton Rouge, LA
Built 1990 Load: 32.4 t ADT: 7,562
I0010
GoodOver: DRAINAGE CANAL
1.74 M W of LA 415&I-10, West Baton Rouge, LA
Built 1968 Load: 32.4 t ADT: 80,618
LA0577
GoodOver: CREEK
2.1 MILES EAST OF LA 585, West Carroll, LA
Built 2014 Load: 32.4 t ADT: 365
Showing 8,551-8,600 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 |