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
LA0139
FairOver: PATRICK BAYOU
1.86 MI NORTH OF US 80, Ouachita, LA
Built 1991 Load: 59.0 t ADT: 15,958
LA0966
FairOver: GRANT BAYOU EAST FORK
0.2 Mi E of US 61, West Feliciana, LA
Built 1991 Load: 59.0 t ADT: 857
LA0040
FairOver: BRUSHY FORK BRANCH
LA 40 0.85 M E OF LA 1129, St. Tammany, LA
Built 1989 Load: 59.0 t ADT: 1,567
MCGOLDRICK DRIVE
FairOver: LINCOLN MEMORIAL DITCH
0.17 MI SO OF LA 526, Caddo, LA
Built 1994 Load: 59.3 t ADT: 1,644
Rougeau Rd.
FairOver: Bayou Choupique
0.6 Mi S. of La 29, St. Landry, LA
Built 1987 Load: 59.9 t ADT: 85
LA0001
FairOver: DRAIN
0.6 MI SOUTH OF LA 175, Caddo, LA
Built 1956 Load: 59.9 t ADT: 1,869
LA0545
FairOver: FIVE MILE CREEK
5.9 MI NORTH OF LA 146, Lincoln, LA
Built 1989 Load: 59.9 t ADT: 178
TARBUTTON RD
FairOver: BRANCH OF CYPRESS CREEK
0.7 MI SE of LA 544, Lincoln, LA
Built 2005 Load: 59.9 t ADT: 675
Doyle Melancon Rd
FairOver: COULEE
2.3 Mi. S of LA 347, St. Martin, LA
Built 2003 Load: 60.3 t ADT: 4,376
OLD CAMP RD
FairOver: BOSSIER BAYOU
1.5 MI. EAST OF LA 191, Sabine, LA
Built 1994 Load: 60.6 t ADT: 110
Mt. Pisgah Rd
FairOver: SILVER CREEK RELIEF
1.6M SOUTH OF HWY 38, Washington, LA
Built 1989 Load: 60.6 t ADT: 675
I0110
FairOver: GOVT. ST. ON RAMP
I0110, East Baton Rouge, LA
Built 1963 Load: 60.8 t ADT: 8,250
LA0448
FairOver: CREEK
1.0 M N OF LA 37, St. Helena, LA
Built 1962 Load: 60.9 t ADT: 547
LA0506
FairOver: BLACK BAYOU
1.90 Mi E OF LA 8, Caldwell, LA
Built 2015 Load: 61.2 t ADT: 300
S. Westport Dr.
FairOver: Drainage Canal
1.38 Mi. E. of LA 415, West Baton Rouge, LA
Built 1970 Load: 61.2 t ADT: 3,500
LA0028
FairOver: LITTLE SALINE B
14.5 MI SOUTH OF LA 84, LaSalle, LA
Built 1960 Load: 61.7 t ADT: 5,026
Hale Rd
FairOver: ALLIGATOR BAYOU
2 MI. W. OF LA 577, West Carroll, LA
Built 1996 Load: 62.2 t ADT: 120
I0020
FairOver: RED CHUTE BAYOU
3.3 MI EAST OF LA 782-2, Bossier, LA
Built 1973 Load: 62.6 t ADT: 62,470
I0210
FairOver: LAKE STREET
1.0 MI EAST OF LA 1138-2, Calcasieu, LA
Built 1975 Load: 62.6 t ADT: 65,748
LA0589
FairOver: INDIAN LAKE
1.52 MI E of LA 582, West Carroll, LA
Built 1981 Load: 62.9 t ADT: 528
OWENS RD
FairOver: CURRY CREEK
0.2 MI S of US 80 W, Ouachita, LA
Built 1994 Load: 63.2 t ADT: 408
LEBOUEF LN
FairOver: BAYOU POINTE AU CHENE
2.65 MI FROM LA 55, Lafourche, LA
Built 1987 Load: 63.5 t ADT: 66
Barron Chapel Rd
FairOver: HAINES CREEK
0.38 M. N. OF PHILADELPHI, Rapides, LA
Built 1985 Load: 63.5 t ADT: 425
I0010
FairOver: CANAL NO. 3
6.7 MI EAST OF LA 49, Jefferson, LA
Built 1966 Load: 64.4 t ADT: 15,876
GRAFTON CROSSING
FairOver: DRY CREEK
1.0 MI E of US 167, Union, LA
Built 1992 Load: 65.1 t ADT: 75
US0084
FairOver: UNNAMED CREEK
8.53 MI EAST OF SALINE BA, Winn, LA
Built 1997 Load: 65.4 t ADT: 2,963
Southridge Drive
FairOver: COOLEY CREEK
0.3 MILES SOUTH OF US 79, Webster, LA
Built 1980 Load: 67.1 t ADT: 92
I0010
FairOver: CITY STREETS
1.62 MI EAST OF US 90, Orleans, LA
Built 1968 Load: 67.7 t ADT: 8,612
WRENWOOD DRIVE
FairOver: TRIBUTARY TO BRUSHY BAYO
0.37 MI SO OF LA 526, Caddo, LA
Built 1985 Load: 68.0 t ADT: 90
ROAD QUARY RD
FairOver: STAGESTAND CR
FORT POLK, Vernon, LA
Built 2005 Load: 68.7 t ADT: 40
WEST PORT UNION RD
FairOver: TUCKER CREEK
0.8 MI E of LA 826, Union, LA
Built 2003 Load: 69.3 t ADT: 132
LA0016
FairOver: CURTIS CREEK
0.34 WEST OF LA 449 INTER, St. Helena, LA
Built 1997 Load: 71.0 t ADT: 4,844
LA0399
FairOver: BR. OF WHISKEY CHITTO CR
3.1 MI. SOUTH OF LA 10, Vernon, LA
Built 2001 Load: 71.9 t ADT: 938
I0010
FairOver: RAMPS
I0010, West Baton Rouge, LA
Built 1968 Load: 72.6 t ADT: 52,159
EMILY ST
FairOver: BAYOU POINT AU CHENE
2.55 MI FROM LA 55, Lafourche, LA
Built 1987 Load: 73.2 t ADT: 92
LA0109
FairOver: DRAIN
5.9 MI N OF LA 12, Beauregard, LA
Built 1961 Load: 73.5 t ADT: 1,749
Carroll Creek Rd
FairOver: Forked Pine Branch
1.4 MI. SOUTH OF LA 786, Red River, LA
Built 1985 Load: 74.2 t ADT: 141
Eight Mile Loop
FairOver: YOUNGS BAYOU
0.85 M. W. OF LA 504, Natchitoches, LA
Built 1980 Load: 74.2 t ADT: 22
LA0867
FairOver: BULLS BAYOU
LA0867, Franklin, LA
Built 1965 Load: 74.2 t ADT: 129
LA1072
FairOver: DRAIN
2.12M EAST LA 16, Washington, LA
Built 1992 Load: 74.2 t ADT: 1,105
LA3134
FairOver: DRAIN DITCH
1 MILE NORTH OF INT WW, Jefferson, LA
Built 1985 Load: 74.5 t ADT: 5,599
LA3235
FairOver: DRAIN CANAL
2.8 MILES NORTH OF BAYOU, Lafourche, LA
Built 1985 Load: 74.5 t ADT: 6,255
Lake Forest BLVD
FairOver: JAHNCKE CANAL
3 MILES WEST OF I-510, Orleans, LA
Built 1985 Load: 74.5 t
LA3087
FairOver: BAYOU BLUE
2 MILES EAST OF LA 182, Terrebonne, LA
Built 1988 Load: 74.5 t ADT: 13,617
LA0178
FairOver: DRAINAGE CANAL
0.4 MI NE of LA 95, Acadia, LA
Built 1978 Load: 74.5 t ADT: 3,177
LA0368
FairOver: GRAND COULEE DTCH
0.6 MI E of LA 370, Acadia, LA
Built 1962 Load: 74.5 t ADT: 105
LA0370
FairOver: BAYOU MALLET
1.84M EAST OF LA 13, Acadia, LA
Built 1993 Load: 74.5 t ADT: 1,145
LA0098
FairOver: CREEK
1 MI S of LA 1101, Acadia, LA
Built 1962 Load: 74.5 t ADT: 3,050
LA1100
FairOver: DITCH
0.8 MI S of LA 365, Acadia, LA
Built 1963 Load: 74.5 t ADT: 198
LA0095
FairOver: CREEK
0.4 MI E of LA 1100, Acadia, LA
Built 1963 Load: 74.5 t ADT: 5,166
Showing 6,101-6,150 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.