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
LA0089
GoodOver: CREEK
4.6 MI SOUTH OF LA 92, Lafayette, LA
Built 1959 Load: 32.4 t ADT: 1,840
LA0720
GoodOver: DITCH
0.75 MI WEST OF LA 719, Lafayette, LA
Built 1964 Load: 32.4 t ADT: 1,391
E Kaliste Saloom
GoodOver: DRAINAGE DITCH
0.2 MI SOUTH LA 728-2, Lafayette, LA
Built 1991 Load: 32.4 t ADT: 12,329
Hollier Rd.
GoodOver: INDIAN BAYOU
0.44 MI W of LA 724, Lafayette, LA
Built 1993 Load: 32.4 t ADT: 140
E. Pinhook Rd.
GoodOver: COULEE
0.18 Mi N of LA 94, Lafayette, LA
Built 1989 Load: 32.4 t ADT: 2,653
W. Pont Des Mouton
GoodOver: FRANCOIS COULEE
0.03 MI. W. US 167, Lafayette, LA
Built 1962 Load: 32.4 t ADT: 8,400
Irby Rd.
GoodOver: COULEE
0.19 MI East of Dupre St, Lafayette, LA
Built 2002 Load: 32.4 t ADT: 100
COOPER LOOP
GoodOver: COOPER LOOP CREEK
0.2 MI SE OF LA 8, LaSalle, LA
Built 2011 Load: 32.4 t ADT: 48
Jeremy Rd
GoodOver: FUNNY LOUIS BAYOU RELIEF
0.55 MILES WEST OF LA.503, LaSalle, LA
Built 2016 Load: 32.4 t ADT: 225
Brasher Rd
GoodOver: COW CREEK
3.2 miles north of la 503, LaSalle, LA
Built 2011 Load: 32.4 t ADT: 80
US0165
GoodOver: CREEK
2.0 MI NORTH OF LA 3259, LaSalle, LA
Built 1941 Load: 32.4 t ADT: 5,116
LA0008
GoodOver: RILEY BRANCH CR
0.9 MI SW OF LA 774, LaSalle, LA
Built 1972 Load: 32.4 t ADT: 1,590
LA0124
GoodOver: CASTOR RELIEF
1.3 MI NORTH OF LA 125, LaSalle, LA
Built 1959 Load: 32.4 t ADT: 1,348
LA0124
GoodOver: BAYOU FUNNY LOUIS
5.2 MI EAST OF LA 506, LaSalle, LA
Built 1959 Load: 32.4 t ADT: 1,838
LA0500
GoodOver: LACROIX CREEK
2.6 MI WEST OF US 84, LaSalle, LA
Built 1989 Load: 32.4 t ADT: 926
LA0503
GoodOver: CREEK
2.0 MI EAST OF LA 771, LaSalle, LA
Built 1953 Load: 32.4 t ADT: 189
LA0503
GoodOver: CREEK
2.5 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0126
GoodOver: CREEK
6.9 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0126
GoodOver: CREEK
8.6 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0127
GoodOver: MASON'S BRANCH
0.10 M S of LA 460, LaSalle, LA
Built 1997 Load: 32.4 t ADT: 2,211
LA0008
GoodOver: EARL CREEK
1.3 MI EAST OF US 84, LaSalle, LA
Built 1971 Load: 32.4 t ADT: 1,606
Ross Rd
GoodOver: CREEK
LOGMI 0.17 FR ODE TO 41, LaSalle, LA
Built 2000 Load: 32.4 t ADT: 50
Brooks Rd
GoodOver: DEVILS CREEK
LOGMI 0.43 FR 118 TO 103, LaSalle, LA
Built 1999 Load: 32.4 t ADT: 160
Windham Rd
GoodOver: CLEAR PRONG
LOG MILE 0.54 FROM 146 TO, LaSalle, LA
Built 2007 Load: 32.4 t ADT: 50
Carpenter St
GoodOver: HEMPHILL CREEK
LOG MILE 0.78 FROM 312 TO, LaSalle, LA
Built 2007 Load: 32.4 t ADT: 75
Cowart St
GoodOver: CREEK
LOG MI 1.41 FR 358 TO ODE, LaSalle, LA
Built 2005 Load: 32.4 t ADT: 100
Searcy-Eden
GoodOver: JUMPING GULLY CREEK
LOGMI 1.59 FR 508 TO 517, LaSalle, LA
Built 1999 Load: 32.4 t ADT: 120
LA 146
GoodOver: Creek
1.10 MI. W. OF US 167, Lincoln, LA
Built 2020 Load: 32.4 t ADT: 2,775
LA0146
GoodOver: CREEK
0.8 MI. E. OF LA 822, Lincoln, LA
Built 2020 Load: 32.4 t ADT: 2,775
Eubanks Rd
GoodOver: Walnut Creek
1.9 Mi. S. of LA 544, Lincoln, LA
Built 2020 Load: 32.4 t ADT: 175
LA0151
GoodOver: CREEK
0.95 MI N of LA 545, Lincoln, LA
Built 2002 Load: 32.4 t ADT: 1,110
LA0150
GoodOver: CREEK
.02 MI WEST OF LA 818, Lincoln, LA
Built 2000 Load: 32.4 t ADT: 8,188
Travis Str
GoodOver: East Fork Dumplin Cr
0.3 Mi. E. of LA 447, Livingston, LA
Built 2020 Load: 32.4 t ADT: 812
John Barber Rd
GoodOver: Mars Branch
0.75 mi. south of LA 442, Livingston, LA
Built 2018 Load: 32.4 t ADT: 300
US0190
GoodOver: CREEK
1.3 M E OF LA 16, Livingston, LA
Built 1953 Load: 32.4 t ADT: 16,814
LA0042
GoodOver: DRAIN
0.2 M W OF LA 441, Livingston, LA
Built 1961 Load: 32.4 t ADT: 2,466
LA0016
GoodOver: CREEK
1.3 M N OF LA 1032, Livingston, LA
Built 1965 Load: 32.4 t ADT: 24,508
LA0016
GoodOver: BEAVER CREEK
LA 16 LOG MI 4.01, Livingston, LA
Built 1982 Load: 32.4 t ADT: 22,036
LA0016
GoodOver: DRAIN
2.3 M N OF LA 64, Livingston, LA
Built 1985 Load: 32.4 t ADT: 19,766
LA0442
GoodOver: DRAIN
2.4 M W OF LA 43, Livingston, LA
Built 1966 Load: 32.4 t ADT: 5,026
LA0441
GoodOver: BIG BRANCH
3.68 MILES N OF I-12, Livingston, LA
Built 1999 Load: 32.4 t ADT: 4,270
LA0441
GoodOver: CREEK
6.06 MI NORTH JCT LA 442, Livingston, LA
Built 2004 Load: 32.4 t ADT: 4,270
I0012
GoodOver: CREEK
0.1 M W OF LA 3002, Livingston, LA
Built 1970 Load: 32.4 t ADT: 77,469
I0012
GoodOver: I-12 ENT RAMP
0.1 M W OF LA 3002, Livingston, LA
Built 1970 Load: 32.4 t ADT: 31,285
I0012
GoodOver: I-12 EXIT RAMP
0.1 M W OF LA 3002, Livingston, LA
Built 1970 Load: 32.4 t ADT: 31,285
I0012
GoodOver: CANAL
1.0 M E OF LA 16, Livingston, LA
Built 1970 Load: 32.4 t ADT: 77,469
I0012
GoodOver: CANAL
0.2 M W OF LA 447, Livingston, LA
Built 1970 Load: 32.4 t ADT: 77,469
I0012
GoodOver: CANAL
0.5 M W OF LA 63, Livingston, LA
Built 1969 Load: 32.4 t ADT: 78,208
I0012
GoodOver: CREEK
1.0 M E OF LA 441, Livingston, LA
Built 1968 Load: 32.4 t ADT: 74,180
LA1036
GoodOver: CREEK
1.4 M S OF LA 442, Livingston, LA
Built 1968 Load: 32.4 t ADT: 426
Showing 8,251-8,300 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 |