Total Bridges
12,698
Public highway bridges in Louisiana
State profile · Above median Poor share
Louisiana bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Louisiana.
- 12,698
- Public bridges
- 38.7%
- Good condition
- 11.5%
- Poor condition
Louisiana holds 12,698 public highway bridges (#24 of 52 by inventory) with a 11.48% Poor share (#8 of 52 by Poor share).
That is 11.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 45 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
38.7%
4,919 bridges rated 7-9
-11.3pp vs 50% benchmark
Poor Condition
11.5%
1,458 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.5%
Louisiana vs national bridge condition
Louisiana - Good condition share 38.7%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana - Poor-condition share 38.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Louisiana in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Louisiana vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
12,698 24th of 54 higher than 30 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Louisiana
The highlighted point is Louisiana: 12,698 bridges and 11.48% in Poor condition, rank #45 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Louisiana on that same Poor-share ordering:
- North Dakota: 4,255 bridges · 10.98% Poor
- Michigan: 11,371 bridges · 11.27% Poor
- Louisiana: 12,698 bridges · 11.48% Poor
- Pennsylvania: 23,299 bridges · 12.58% Poor
- Guam: 47 bridges · 12.77% Poor
The full national sortable table lives on the rankings page.
Material families in Louisiana
Exclusive FHWA material families across all 12,698 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Louisiana’s inventory
State agency holds 61.0% of the 12,698 public highway bridges filed under Louisiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Louisiana’s bridges were built
Pre-1950 construction accounts for 4.2% of the 12,698 bridges with a recorded original year in Louisiana. Era bands are orthogonal to the Poor-share ranking above.
Condition Distribution
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 322 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 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.
ND
North Dakota
10.98% top marginal rate
MI
Michigan
11.27% top marginal rate
LA
Louisiana
11.48% top marginal rate
PA
Pennsylvania
12.58% top marginal rate
GU
Guam
12.77% top marginal rate
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.
Avenue E
PoorOver: DRESSER CANAL
0.10 MI WEST OF LA 1, Lafourche, LA
Built 1952 Load: 0.0 t
VALENTINE BRIDGE R
PoorOver: LAFOURCHE BAYOU
0.01 MI N OF LA 1, Lafourche, LA
Built 1969 Load: 0.0 t
UNNAMED RD
PoorOver: I-10
3.1 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
UNNAMED RD
PoorOver: I-10
4.5 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
Almonaster Ave
PoorOver: INNER HARBOR NAVIGATION
0.01 MI E OF FRANCE RD, Orleans, LA
Built 1919 Load: 0.0 t
Beiber Rd
PoorOver: NEZPIQUE BAYOU
3.65 Mi W of La 1160, Evangeline, LA
Built 1965 Load: 0.0 t ADT: 70
All Bridges in Louisiana
Westwego St
GoodOver: Bayou Tesson
0.2 Mi E. of Railroad Rd., St. Landry, LA
Built 1965 Load: 19.8 t ADT: 500
Robin St.
GoodOver: Bayou Teche
0.09 Mi W of LA 103, St. Landry, LA
Built 1985 Load: 19.8 t ADT: 1,010
West Lakeshore Dr
GoodOver: SHETTLEWORTH BAYOU
3.5 MI. SW OF BLANCHARD, Caddo, LA
Built 1998 Load: 19.8 t ADT: 100
COOPER RD
GoodOver: TURKEY CREEK
1.6 MI SW of LA 545, Lincoln, LA
Built 2002 Load: 19.8 t ADT: 235
E BEAR LAKE RD #2
GoodOver: BULL BAYOU
5.8 MI W of US 65, Madison, LA
Built 1999 Load: 19.8 t ADT: 144
JACK BONNETT RD
GoodOver: ROGERS CREEK
0.68 MI SE of LA 34, Ouachita, LA
Built 1997 Load: 19.8 t ADT: 31
FERGUSON RD
GoodOver: TURKEY CREEK
2.1 MI W of LA 17, Richland, LA
Built 2005 Load: 19.8 t ADT: 300
BOYS VILLAGE RD
GoodOver: WEST FORK ENGLISH BAYOU
1.5 MI S of US 90, Calcasieu, LA
Built 2014 Load: 19.8 t ADT: 336
ELLIOT RD
GoodOver: CANAL
1.0 MI N OF W LINCOLN RD, Calcasieu, LA
Built 1999 Load: 19.8 t ADT: 2,920
S. HUNTINGTON ST
GoodOver: DINDE BAYOU
0.4 MI S of LA 1256, Calcasieu, LA
Built 2004 Load: 19.8 t ADT: 1,321
FAIR GROUNDS RD
GoodOver: SAN JOSE CREEK
FAIRGROUNDS RD. MANY, Sabine, LA
Built 1994 Load: 19.8 t ADT: 300
Company Farm Rd
GoodOver: BRUSHY BAYOU
LOG MI 1.95 R 1DE TO 2DE, Franklin, LA
Built 1997 Load: 19.8 t ADT: 68
Joe May
GoodOver: WEST COLYELL CREEK
3.5M S OF LA 447 EXIT, Livingston, LA
Built 1993 Load: 19.8 t ADT: 400
Lawrence Cr. Rd
GoodOver: CREEK
1.4 MI E OF HWY 430, Washington, LA
Built 1996 Load: 19.8 t ADT: 410
Gallet Rd
GoodOver: ANSELM COULEE
.9 Mi S of LA 92, Lafayette, LA
Built 1968 Load: 20.0 t ADT: 840
Aladin Rd
GoodOver: TIGRE BAYOU
0.3 Mi. W of Jude Rd, Vermilion, LA
Built 2013 Load: 20.0 t ADT: 324
Pleasant Hill Ceme
GoodOver: Cypress Bayou Trib
2.6 MI E OF LA 157, Bossier, LA
Built 2014 Load: 20.0 t ADT: 100
LA0004
GoodOver: CREW BAYOU RELIEF
3.3 MI EAST OF LA 559, Caldwell, LA
Built 1957 Load: 20.0 t ADT: 1,558
LA0004
GoodOver: BEOUF RIVER RELIEF
5.1 MI EAST OF LA 559, Caldwell, LA
Built 1957 Load: 20.0 t ADT: 1,558
US0084
GoodOver: WEST PRONG HEMP CREEK
.2 MI WEST OF LA 127, LaSalle, LA
Built 1956 Load: 20.0 t ADT: 6,905
Peairs Rd
GoodOver: BEAVER CREEK
2.3 MI.E.LA64 LA410, East Baton Rouge, LA
Built 1965 Load: 20.0 t ADT: 1,149
LA1026
GoodOver: MILLERS CANAL
0.5 M NE OF LA 16, Livingston, LA
Built 1963 Load: 20.0 t ADT: 9,389
US0051
GoodOver: PONCHATOULA CREEK
0.88 MI. NORTH OF LA 1064, Tangipahoa, LA
Built 1953 Load: 20.0 t ADT: 6,681
I0010
GoodOver: I-10 W.B. ON-RAMP
02264501502058, Jefferson, LA
Built 2001 Load: 20.1 t ADT: 40,208
CAUSEWAY BLVD
GoodOver: VETERANS MEMORIAL BLVD.
0.2MI.N.OF I-10, Jefferson, LA
Built 1977 Load: 20.1 t ADT: 26,850
N. Causeway BLVD
GoodOver: VETERANS MEMORIAL BLVD
0.2MI.N.OF I-10, Jefferson, LA
Built 1977 Load: 20.1 t ADT: 21,175
Busnell Rd
GoodOver: Bayou Petit Gaillou
0013 LOG MI FROM INT 001, Terrebonne, LA
Built 1986 Load: 20.1 t ADT: 1,012
E. University Ave.
GoodOver: VERMILION RIVER
0.02 MI SE OF US 90, Lafayette, LA
Built 1988 Load: 20.1 t ADT: 4,400
SAWMILL RD
GoodOver: I-10
2.2 MI WEST OF LA 347, St. Martin, LA
Built 1970 Load: 20.1 t ADT: 60,066
Eddie Rd
GoodOver: COULEE
0.6 Mi W of LA 3093, Vermilion, LA
Built 1965 Load: 20.1 t ADT: 125
River Rd
GoodOver: COULEE
0.3 Mi E of US 167, Vermilion, LA
Built 1970 Load: 20.1 t ADT: 250
LA0384
GoodOver: DRAIN
9.2 MI. N OF LA 1144, Calcasieu, LA
Built 1960 Load: 20.1 t ADT: 1,786
FDR 247
GoodOver: BAYOU CLEAR
NO DATA ENTERED, Rapides, LA
Built 1970 Load: 20.1 t ADT: 30
Dyer Rd
GoodOver: COMITE RIVER
1.7 Mi. E of LA 67, East Baton Rouge, LA
Built 2002 Load: 20.1 t ADT: 1,636
LA0956
GoodOver: CREEK REDWOOD
2.8 Mi N of LA 412, East Feliciana, LA
Built 1958 Load: 20.1 t ADT: 586
US0090
GoodOver: US-90 RAMPS
1.7 MI SOUTH OF MISS. RIV, Orleans, LA
Built 1989 Load: 20.4 t ADT: 3,803
LAKESHORE DR
GoodOver: BAYOU ST. JOHN
0.35 N. OF ROBERT E. LEE, Orleans, LA
Built 1989 Load: 20.4 t
LAKESHORE DR
GoodOver: BAYOU ST. JOHN
0.35 N. OF ROBERT E. LEE, Orleans, LA
Built 1989 Load: 20.4 t
LA0660
GoodOver: ST LOUIS CANAL
3.0 MI NORTH OF LA 24, Terrebonne, LA
Built 1958 Load: 20.4 t ADT: 10,321
W. Lincoln St.
GoodOver: BAYOU TESSON
0.2 Mi. W. La 182, St. Landry, LA
Built 1965 Load: 20.4 t ADT: 500
Suire Rd
GoodOver: LAPORT COULEE
0.1 MI. S OF LA 14, Vermilion, LA
Built 2014 Load: 20.4 t ADT: 574
Prairie Rd
GoodOver: BULL HOLE CANAL
1.2 Mi N of Community Rd, Vermilion, LA
Built 2000 Load: 20.4 t ADT: 241
Parks Rd
GoodOver: Cypress Bayou
1.2 MI. WEST OF CROUCH RD, Bossier, LA
Built 2010 Load: 20.4 t ADT: 2,750
Blanchard Latex Rd
GoodOver: FORONEY BAYOU
2.0M EAST OF LA 169, Caddo, LA
Built 1991 Load: 20.4 t ADT: 39
US0090
GoodOver: CANAL
7.1 MI EAST OF LA 388, Calcasieu, LA
Built 1968 Load: 20.4 t ADT: 13,695
LA0112
GoodOver: BAD GULLY BRANCH
0.08 MI. SOUTH OF LA 462, Rapides, LA
Built 1960 Load: 20.4 t ADT: 1,197
LA0860
GoodOver: CREEK
1.5 MI WEST OF LA 17, Franklin, LA
Built 1939 Load: 20.4 t ADT: 199
LAPALCO BLVD
GoodOver: AMES CANAL
0.3 MI.W.OF AMES BL, Jefferson, LA
Built 1970 Load: 20.7 t ADT: 2,000
LA0001
GoodOver: MARSH
LA 1 1.5 MILES NORTH OF B, Lafourche, LA
Built 2009 Load: 20.7 t ADT: 3,305
Faulk Rd
GoodOver: Coulee
2.5 Mi. E. of La 13, Acadia, LA
Built 2001 Load: 20.7 t ADT: 288
Showing 6,451-6,500 of 12,698 bridges
Related
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.
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.
What to do with this
Use Louisiana's inventory picture to drill to a county or a specific span.
- Browse counties in Louisiana and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Louisiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.