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

US0065

Fair

Over: LAKE BRUIN BAYOU

1.1 MI SOUTH OF LA 605, Tensas, LA

Built 1948 Load: 32.4 t ADT: 1,873

US0065

Fair

Over: BAYOU

1.7 MI NORTH OF LA 888, Tensas, LA

Built 1953 Load: 32.4 t ADT: 2,109

St Charles St

Fair

Over: BAYOU BLACK

P5529353904461, Terrebonne, LA

Built 2003 Load: 32.4 t ADT: 14,665

US0167

Fair

Over: CREEK

1.7 MI NORTH OF ALT LA 2, Union, LA

Built 1924 Load: 32.4 t ADT: 422

US0167

Fair

Over: CREEK

5.3 MI NORTH OF LA 15, Union, LA

Built 1925 Load: 32.4 t ADT: 422

LA0033

Fair

Over: CREEK

2.5 MI NORTH OF LA 151, Union, LA

Built 1937 Load: 32.4 t ADT: 5,013

LA0033

Fair

Over: CREEK

3.5 MI NORTH OF LA 151, Union, LA

Built 1937 Load: 32.4 t ADT: 5,862

LA0002

Fair

Over: CREEK

3.0 MI WEST OF US 167, Union, LA

Built 1950 Load: 32.4 t ADT: 886

LA0002

Fair

Over: CREEK

6.7 MI EAST OF LA 550, Union, LA

Built 1975 Load: 32.4 t ADT: 2,579

LA0002

Fair

Over: CREEK

2.6 MI EAST OF LA 33, Union, LA

Built 1931 Load: 32.4 t ADT: 6,218

LA0002

Fair

Over: HORSE.PEN CREEK

5.6 MI EAST OF LA 33, Union, LA

Built 1931 Load: 32.4 t ADT: 6,236

LA0002

Fair

Over: CREEK

3.6 MI EAST OF LA 143, Union, LA

Built 1931 Load: 32.4 t ADT: 6,258

LA0015

Fair

Over: HUNNICUTT CREEK

1.3 MI NORTH OF LA 549, Union, LA

Built 1953 Load: 32.4 t ADT: 5,557

LA0015

Fair

Over: CREEK

4.4 MI NORTH OF LA 549, Union, LA

Built 1953 Load: 32.4 t ADT: 5,557

LA0015

Fair

Over: HORSE TROUGH CREEK

6.2 MI NORTH OF LA 549, Union, LA

Built 1955 Load: 32.4 t ADT: 5,557

LA0015

Fair

Over: CYPRESS CREEK

8.2 MI NORTH OF LA 549, Union, LA

Built 1955 Load: 32.4 t ADT: 5,557

LA0015

Fair

Over: CAMP CREEK

3.0 MI NORTH OF LA 550, Union, LA

Built 1955 Load: 32.4 t ADT: 2,423

LA0143

Fair

Over: HOLLMAN CREEK

4.8 MI NORTH OF LA 2, Union, LA

Built 1951 Load: 32.4 t ADT: 2,254

LA0015

Fair

Over: CREEK

1.0 MI NORTH OF LA 552, Union, LA

Built 1997 Load: 32.4 t ADT: 6,512

LA0013

Fair

Over: CREEK

0.5 MI N. OF LA 14, Vermilion, LA

Built 1952 Load: 32.4 t ADT: 2,466

LA0013

Fair

Over: AVERICO CANAL

1.15 MI N. OF LA 14, Vermilion, LA

Built 1952 Load: 32.4 t ADT: 2,466

LA0343

Fair

Over: CREEK

0.4 Miles North of LA 696, Vermilion, LA

Built 1957 Load: 32.4 t ADT: 2,830

LA3093

Fair

Over: CREEK

0.33 MI S. OF LA 14, Vermilion, LA

Built 1965 Load: 32.4 t ADT: 473

Elis Bridge Rd

Fair

Over: GUEYDAN CANAL

6.1 Mi W of LA 91, Vermilion, LA

Built 1999 Load: 32.4 t ADT: 100

Pioneer Rd.

Fair

Over: COULEE

0.7 Mi S of La 14, Vermilion, LA

Built 1985 Load: 32.4 t ADT: 106

Enis Rd

Fair

Over: CANAL

0.2 Mi N of La 697, Vermilion, LA

Built 1986 Load: 32.4 t ADT: 250

LA0392

Fair

Over: MILL CREEK

1.6 MI WEST OF LA 111, Vernon, LA

Built 1965 Load: 32.4 t ADT: 735

LA1211

Fair

Over: CREEK

4.73 MILES WEST OF US 171, Vernon, LA

Built 1958 Load: 32.4 t ADT: 2,663

HAWKS RD

Fair

Over: FLAT CREEK

1.2M WEST OF US 171, Vernon, LA

Built 1992 Load: 32.4 t ADT: 490

LA0021

Fair

Over: HILL CREEK

LA 21, Washington, LA

Built 1932 Load: 32.4 t ADT: 7,160

LA0021

Fair

Over: DRAIN

LA 21, Washington, LA

Built 1987 Load: 32.4 t ADT: 7,160

LA0021

Fair

Over: YELLOW BRANCH

4.2 M NE OF LA 1075, Washington, LA

Built 1950 Load: 32.4 t ADT: 7,160

LA0021

Fair

Over: DRAIN

2.4 M S OF LA 10, Washington, LA

Built 1966 Load: 32.4 t ADT: 7,160

LA0010

Fair

Over: DRAIN

0.3 M E OF LA 16, Washington, LA

Built 1932 Load: 32.4 t ADT: 7,817

LA0010

Fair

Over: POND BRANCH

3.4 M W OF LA 439, Washington, LA

Built 1932 Load: 32.4 t ADT: 10,686

LA0010

Fair

Over: DRAIN

2.9 M W OF LA 439, Washington, LA

Built 1932 Load: 32.4 t ADT: 10,686

LA0010

Fair

Over: DRAIN

0.7 M E OF LA 439, Washington, LA

Built 1932 Load: 32.4 t ADT: 4,253

LA0010

Fair

Over: DRAIN

0.8 M E OF LA 62, Washington, LA

Built 1932 Load: 32.4 t ADT: 5,765

LA0016

Fair

Over: CORKERN CREEK

1.1 M N OF LA 1072, Washington, LA

Built 1955 Load: 32.4 t ADT: 2,087

LA0038

Fair

Over: DRAIN

2.4 MI E OF LA25, Washington, LA

Built 2003 Load: 32.4 t ADT: 1,706

LA0060

Fair

Over: DRAIN

0.5M EAST JCT LA 16, Washington, LA

Built 1993 Load: 32.4 t ADT: 704

LA0060

Fair

Over: JOHNSON BRANCH

1.0M EAST OF JCT LA 16, Washington, LA

Built 1993 Load: 32.4 t ADT: 704

LA0060

Fair

Over: CREEK

9.45 MILES E OF LA 16, Washington, LA

Built 2000 Load: 32.4 t ADT: 797

Choctaw Rd

Fair

Over: TILLY'S BRANCH

3.5 M N JCT LA 1082 & 40, Washington, LA

Built 2001 Load: 32.4 t ADT: 720

Hollis Leslie Rd

Fair

Over: CANAL

1.2 M W OF JCT LA21&438, Washington, LA

Built 2002 Load: 32.4 t ADT: 1,480

US0371

Fair

Over: TANYARD CREEK

.2 MI SOUTH OF LA 531, Webster, LA

Built 1935 Load: 32.4 t ADT: 4,174

US0371

Fair

Over: SHERMAN CREEK

.8 MI SOUTH OF I-20, Webster, LA

Built 1925 Load: 32.4 t ADT: 9,002

US0371

Fair

Over: COOLEY BR RELIEF

.6 MI SOUTH OF I-20, Webster, LA

Built 1925 Load: 32.4 t ADT: 9,002

US0371

Fair

Over: COOLEY BRANCH

.5 MI SOUTH OF I-20, Webster, LA

Built 1925 Load: 32.4 t ADT: 9,002

US0079

Fair

Over: COOLEY BR RELIEF

1.7 MI EAST OF LA 531, Webster, LA

Built 1932 Load: 32.4 t ADT: 9,942

Showing 4,251-4,300 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.

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.