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
I0055
FairOver: COOLS CREEK
I0055, Tangipahoa, LA
Built 1966 Load: 32.1 t ADT: 17,665
S JAMIE BLVD
FairOver: WAGGANMAN CANAL
1.3 MI S OF US 90B, Jefferson, LA
Built 1995 Load: 32.4 t ADT: 987
POST DR
FairOver: DRAINAGE CANAL
0.5 MI SW OF LAPALCO BLVD, Jefferson, LA
Built 2000 Load: 32.4 t ADT: 525
Veterans
FairOver: Canal 3
.1 M W of Transcontinenta, Jefferson, LA
Built 2002 Load: 32.4 t ADT: 3,500
Veterans Blvd
FairOver: Canal 3
0.2 M E of Transcontinent, Jefferson, LA
Built 2002 Load: 32.4 t ADT: 1,250
US0090-B
FairOver: ON RAMP LA-2
.01 MI EAST OF LA 23, Jefferson, LA
Built 1985 Load: 32.4 t ADT: 15,955
US0090-B
FairOver: WHISKEY BAYOU
1.0 MI EAST OF LA 18, Jefferson, LA
Built 1985 Load: 32.4 t ADT: 67,143
Gretna BLVD
FairOver: HEEBE CANAL
0.5 MI. E. OF MANHATTAN, Jefferson, LA
Built 1995 Load: 32.4 t
W. Metairie Ave
FairOver: CANAL NO. 5
0.0MI.FROM W.METAIRE, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 1,000
ROOSEVELT BLVD
FairOver: CANAL NUMBER 5
0.7MI.E.OF WILLIAMS, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 1,000
VETERAN S X-OVER
FairOver: CANAL #3
0.03 MI N OF VETERANS MEM, Jefferson, LA
Built 1982 Load: 32.4 t ADT: 10,000
VETERANS BLVD
FairOver: SUBURBAN CANAL
1 MILE EAST OF CLEARVIEW, Jefferson, LA
Built 2004 Load: 32.4 t
W Esplanade Ave S
FairOver: CANAL NO 2
0.1 MI W OF SEVERN AVENUE, Jefferson, LA
Built 1960 Load: 32.4 t
W Esplanade Ave S
FairOver: CANAL NUMBER 2
1.0 M E OF POWER BLVD, Jefferson, LA
Built 1989 Load: 32.4 t
LA0652
FairOver: 40 ARPENT CANAL
0.3 MILES EAST OF LA 182, Lafourche, LA
Built 2009 Load: 32.4 t ADT: 1,867
US0090
FairOver: DRAIN CANAL
9.9 MI NORTH OF I-10, Orleans, LA
Built 1965 Load: 32.4 t ADT: 1,215
Pace BLVD
FairOver: MAGELLAN CANAL
0.2MI.N.OF WALL BLVD, Orleans, LA
Built 1960 Load: 32.4 t
LA0039
FairOver: DRAIN CANAL
2.37 MI NORTH OF LA 36, St. Bernard, LA
Built 1967 Load: 32.4 t ADT: 47,739
I0310
FairOver: DRAIN CANAL
0.8 MILES SOUTH OF HALES, St. Charles, LA
Built 1984 Load: 32.4 t ADT: 40,204
St Charles St
FairOver: BAYOU BLACK
P5529353904461, Terrebonne, LA
Built 2003 Load: 32.4 t ADT: 14,665
US0090
FairOver: CREEK
0.5 MI. EAST OF LA 91, Acadia, LA
Built 1931 Load: 32.4 t ADT: 2,899
LA0013
FairOver: CREEK
.6 MI NORTH OF LA 1121, Acadia, LA
Built 1960 Load: 32.4 t ADT: 9,877
LA0013
FairOver: CREEK
.3 MI NORTH OF LA 3123, Acadia, LA
Built 1966 Load: 32.4 t ADT: 6,146
LA0097
FairOver: CREEK
3.53 MI NORTH OF I-10, Acadia, LA
Built 1954 Load: 32.4 t ADT: 1,175
LA0097
FairOver: CREEK
3.64 MI NORTH OF LA 100, Acadia, LA
Built 1962 Load: 32.4 t ADT: 1,175
LA0365
FairOver: PRATHER GULLY
0.8 MI EAST OF LA 367, Acadia, LA
Built 1965 Load: 32.4 t ADT: 1,570
LA0035
FairOver: CREEK
3.19 MI N of LA 92, Acadia, LA
Built 1976 Load: 32.4 t ADT: 1,034
I0010
FairOver: DRAIN
2.0 Mi E. of LA 91, Acadia, LA
Built 1959 Load: 32.4 t ADT: 58,865
I0010
FairOver: DRAIN
2.50 MI W of LA 13, Acadia, LA
Built 1961 Load: 32.4 t ADT: 1,471
I0010
FairOver: DRAIN
0.6 MI EAST OF LA 35, Acadia, LA
Built 1966 Load: 32.4 t ADT: 78,651
Howard St.
FairOver: Canal
0.03 MI S of LA 370, Acadia, LA
Built 1998 Load: 32.4 t ADT: 2,064
Link Rd
FairOver: LEJUNE GULLY
2.5 Mi E of La 367, Acadia, LA
Built 1993 Load: 32.4 t ADT: 48
LA0013
FairOver: BAYOU DURALDE
1.9 MI NORTH OF LA 374, Evangeline, LA
Built 1958 Load: 32.4 t ADT: 5,097
LA0013
FairOver: DRAIN
01 MI NORTH OF LA 1160, Evangeline, LA
Built 1970 Load: 32.4 t ADT: 7,049
LA0115
FairOver: DRAIN
1.4 MI East of LA 181, Evangeline, LA
Built 1958 Load: 32.4 t ADT: 1,844
US0090
FairOver: PEEBLES CANAL
0.10 Mi E of LA 83, Iberia, LA
Built 1969 Load: 32.4 t ADT: 12,192
US0090
FairOver: PEEBLES CANNAL
6.20 Mi W of LA 85, Iberia, LA
Built 1969 Load: 32.4 t ADT: 12,192
LA0083
FairOver: PEEBLES B DUBOIN
2.2 MI NORTH OF LA 85, Iberia, LA
Built 1955 Load: 32.4 t ADT: 3,078
LA0083
FairOver: JACK COULEE
1.1 MI NORTH OF LA 85, Iberia, LA
Built 1955 Load: 32.4 t ADT: 3,078
US0090
FairOver: CREEK
3.30 Mi SE of LA 88, Iberia, LA
Built 1965 Load: 32.4 t ADT: 29,549
LA3184
FairOver: Paved Ditch
1.64 MI N of US 167, Lafayette, LA
Built 1981 Load: 32.4 t ADT: 19,557
LA3025
FairOver: Paved Ditch
1.4 MI NW of US 167, Lafayette, LA
Built 1981 Load: 32.4 t ADT: 25,500
US0090
FairOver: Bayou Queue De Tortue
0.4 MI EAST OF LA 724, Lafayette, LA
Built 1934 Load: 32.4 t ADT: 7,042
LA0092
FairOver: Coulee
.08 Mi West of US90, Lafayette, LA
Built 1963 Load: 32.4 t ADT: 8,744
I0010
FairOver: DRAIN
1.8 MI EAST OF LA 93, Lafayette, LA
Built 1968 Load: 32.4 t ADT: 56,748
I0010
FairOver: COULEE MINE
2.2 MI EAST OF LA 93, Lafayette, LA
Built 1968 Load: 32.4 t ADT: 56,748
I0010
FairOver: DRAIN
1.42 Mi E of LA 3184, Lafayette, LA
Built 1968 Load: 32.4 t ADT: 56,748
I0049
FairOver: CREEK
1.45 MI NORTH OF I-10, Lafayette, LA
Built 1963 Load: 32.4 t ADT: 74,085
LA3025
FairOver: COULEE MINE
0.7 MI W OF W PINHOOK RD, Lafayette, LA
Built 1967 Load: 32.4 t ADT: 34,877
W. Congress St.
FairOver: Ile Des Cannes Coulee
0.2 Mi W of La 93, Lafayette, LA
Built 1992 Load: 32.4 t ADT: 3,200
Showing 3,001-3,050 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.