State profile · Above median Poor share

Louisiana bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Louisiana, based on the FHWA National Bridge Inventory.

12,699
Public bridges
36.2%
Good condition
11.0%
Poor condition

Data updated May 2026

Total Bridges

12,699

Public highway bridges in Louisiana

Good Condition

36.2%

4,603 bridges rated 7-9

-13.8pp vs 50% benchmark

Poor Condition

11.0%

1,397 bridges whose lowest applicable component is rated 0-4

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 - Poor-condition share 36.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Louisiana vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Louisiana on the same metric.

PA

Pennsylvania

10.50% top marginal rate
Structure
Progressive
Burden @ $100K
$14,867

ND

North Dakota

10.84% top marginal rate
Structure
Progressive
Burden @ $100K
$4,242
Selected

LA

Louisiana

11.00% top marginal rate
Structure
Progressive
Burden @ $100K
$12,699

PR

Puerto Rico

11.98% top marginal rate
Structure
Progressive
Burden @ $100K
$2,387

ME

Maine

13.23% top marginal rate
Structure
Progressive
Burden @ $100K
$771

Bridges Needing Most Attention in Louisiana

Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Louisiana

LA0024

Fair

Over: BAYOU TERREBONNE

02550650405259, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 258

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0002

Fair

Over: BAYOU DELOUTRE

2.0 MI EAST OF LA 143, Union, LA

Built 1976 Load: 39.0 t ADT: 6,258

LA0348

Fair

Over: MERIDIAN CREEK

.9 MI EAST OF LA 549, Union, LA

Built 1973 Load: 39.0 t ADT: 314

LA0348

Fair

Over: BIG CANE CREEK

5.6 MI EAST OF LA 549, Union, LA

Built 1973 Load: 39.0 t ADT: 314

LA0348

Fair

Over: BIG CANE RELIEF

5.7 MI EAST OF LA 549, Union, LA

Built 1973 Load: 39.0 t ADT: 314

LA0828

Fair

Over: CANE CREEK

1.8 MI EAST OF LA 33, Union, LA

Built 1976 Load: 39.0 t ADT: 2,369

LA3147

Fair

Over: DRAINAGE CANAL

3.84 MI S. OF LA 82, Vermilion, LA

Built 1982 Load: 39.0 t ADT: 221

LA0010

Fair

Over: DRAIN

1.50 MILES EAST OF LA 450, Washington, LA

Built 1990 Load: 39.0 t ADT: 1,478

LA0060

Fair

Over: BOGUE LUSA CR

LA0060, Washington, LA

Built 1965 Load: 39.0 t ADT: 11,719

LA1072

Fair

Over: DRAIN

0.4 M E OF LA 16, Washington, LA

Built 1978 Load: 39.0 t ADT: 1,105

I0020

Fair

Over: KCS R/R

0.12M EAST OF LA 159, Webster, LA

Built 1960 Load: 39.0 t ADT: 41,386

LA0878

Fair

Over: LITTLE COLEWA BAYOU

.26 MI WEST OF LA 2, West Carroll, LA

Built 1980 Load: 39.0 t ADT: 565

LA0585

Fair

Over: BAYOU

.6 MI EAST OF LA 17, West Carroll, LA

Built 1977 Load: 39.0 t ADT: 372

LA0585

Fair

Over: DEEP GULLEY

1.8 MI E OF LA 880, West Carroll, LA

Built 1977 Load: 39.0 t ADT: 372

LA0879

Fair

Over: BIG COLEWA BAYOU

2.77 MI EAST OF LA 585, West Carroll, LA

Built 1978 Load: 39.0 t ADT: 519

LA0879

Fair

Over: CREEK

2.95 MI EAST OF LA 585, West Carroll, LA

Built 1978 Load: 39.0 t ADT: 519

LA0879

Fair

Over: CREEK

4.1 MI EAST OF LA 585, West Carroll, LA

Built 1978 Load: 39.0 t ADT: 818

LA0879

Fair

Over: LITTLE COLEWA BAYOU

5.0 MI EAST OF LA 585, West Carroll, LA

Built 1978 Load: 39.0 t ADT: 1,129

LA0586

Fair

Over: PINE BAYOU

3.5 MI EAST OF LA 583, West Carroll, LA

Built 1975 Load: 39.0 t ADT: 242

LA0586

Fair

Over: COLEMAN BAYOU

6.1 MI EAST OF LA 583, West Carroll, LA

Built 1975 Load: 39.0 t ADT: 580

LA0421

Fair

Over: ALEXANDER CREEK E

1.5 M E of US 61&LA 421, West Feliciana, LA

Built 1971 Load: 39.0 t ADT: 739

LA0421

Fair

Over: DRY CREEK

4.16 MI S JCT US 61-LA421, West Feliciana, LA

Built 1982 Load: 39.0 t ADT: 739

LA0966

Fair

Over: THOMPSON CREEK TRIBUTARY

1.8 M E of LA 10&LA 955, West Feliciana, LA

Built 1982 Load: 39.0 t ADT: 857

US0167

Fair

Over: PORT DELUCE CREEK RELIEF

0.11 MI. SOUTH OF LA 501, Winn, LA

Built 1991 Load: 39.0 t ADT: 10,307

LA0499

Fair

Over: FLAT CREEK RELIEF

0.88 MI. NTH. JCT. LA126, Winn, LA

Built 1996 Load: 39.0 t ADT: 114

Bordino Crossing

Fair

Over: BAYOU DES GLAISES

0.01 MI. EAST OF LA 451, Avoyelles, LA

Built 1985 Load: 39.2 t ADT: 80

Pleasant Rd

Fair

Over: FOUR MILE BAYOU

1.8 MI N.E. OF LA 4, Bienville, LA

Built 1986 Load: 39.2 t ADT: 70

Bear Creek Rd

Fair

Over: BEAR CREEK ROAD

1.9 MI NORTH OF LA 507, Bienville, LA

Built 1986 Load: 39.2 t ADT: 150

COMMON ST

Fair

Over: KANSAS CITY SOUTHERN RR

0.1 MI N OF I-20, Caddo, LA

Built 1956 Load: 39.2 t ADT: 15,612

E. MCNEESE ST

Fair

Over: KAYOUCHE COULEE

0.96 MI. EAST OF LA 14, Calcasieu, LA

Built 2012 Load: 39.2 t ADT: 3,569

MCCOWN RD

Fair

Over: WEST FORK ENGLISH BAYOU

0.58 MI. EAST OF LA 397, Calcasieu, LA

Built 2012 Load: 39.2 t ADT: 1,856

MCCOWN RD

Fair

Over: WEST FORK ENGLISH BAYOU

2.54 MI. EAST OF LA 397, Calcasieu, LA

Built 2012 Load: 39.2 t ADT: 815

LA0175

Fair

Over: FRIERSON BRANCH

2.09 MI N OF I-49, De Soto, LA

Built 2014 Load: 39.2 t ADT: 1,142

Nash Rd

Fair

Over: CASTOR BAYOU

6.7 MI N. OF US 84, De Soto, LA

Built 1985 Load: 39.2 t ADT: 397

Red Bayou Rd

Fair

Over: DOLET BAYOU

0.46 MI EAST OF LA 177, De Soto, LA

Built 1986 Load: 39.2 t ADT: 30

US0167

Fair

Over: SHEPHERD CREEK

3.4 MI SOUTH OF US 80, Lincoln, LA

Built 2005 Load: 39.2 t ADT: 8,681

US0167

Fair

Over: SHEPHERD CREEK

3.4 MI SOUTH OF US 80, Lincoln, LA

Built 2005 Load: 39.2 t ADT: 5,350

HOLLY RIDGE RD

Fair

Over: CAMP BAYOU CANAL

1.7 MI S of LA 835, Morehouse, LA

Built 2000 Load: 39.2 t ADT: 250

FORESTRY ROAD

Fair

Over: REAUGAULIE CREEK

FORT POLK, Natchitoches, LA

Built 2005 Load: 39.2 t ADT: 40

Bullard Ave

Fair

Over: DRAINAGE CANAL

.65 MI SE OF LA 47, Orleans, LA

Built 1975 Load: 39.2 t

Bullard Ave

Fair

Over: DRAINAGE CANAL

0.7 MI SE OF LA 57, Orleans, LA

Built 1975 Load: 39.2 t

JONES RD

Fair

Over: CUT OFF BAYOU

JONES ROAD, Ouachita, LA

Built 1993 Load: 39.2 t ADT: 30

POLAND CROSSING

Fair

Over: BAYOU DARBONNE

4.2 MI S of LA 2, Union, LA

Built 2004 Load: 39.2 t ADT: 162

Lake Rd

Fair

Over: COOLEY CREEK

2.8M SOUTH OF LA 7, Webster, LA

Built 1993 Load: 39.2 t ADT: 320

Blue Run Rd

Fair

Over: COW CREEK

0.41 MI E. OF LA 3008, Webster, LA

Built 1985 Load: 39.2 t ADT: 86

Leggitt Crossing

Fair

Over: ALLIGATOR BAYOU

.3 MI. SE. HWY. 17, West Carroll, LA

Built 1984 Load: 39.2 t ADT: 425

Mclemore Rd

Fair

Over: HURRICANE CREEK

2 Mi. S. of LA 588, West Carroll, LA

Built 1984 Load: 39.2 t ADT: 80

N CARPENTERS ROAD

Fair

Over: FLAT CREEK

3.5 MI S OF LA 26, Allen, LA

Built 2019 Load: 39.5 t ADT: 232

CHERRY WITCHIE RD

Fair

Over: CHERRY WINCHE CREEK

0.6 MI. E of SAM CLOUD RD, Allen, LA

Built 2018 Load: 39.5 t ADT: 321

Showing 5,451-5,500 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.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.