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
WATKINS ROAD
FairOver: CANAL
4.2 M N of LA 14, Jefferson Davis, LA
Built 1973 Load: 20.7 t ADT: 50
LA0001
FairOver: ATCHAFALAYA RIVER
0.18 MI. EAST OF LA 105, Avoyelles, LA
Built 1971 Load: 20.7 t ADT: 4,054
FDR 120
FairOver: SANDY CREEK
NO DATA ENTERED, Grant, LA
Built 1985 Load: 20.7 t ADT: 15
FSR 282
FairOver: VALENTINE BRANCH
NO DATA ENTERED, Rapides, LA
Built 2001 Load: 20.7 t ADT: 150
FDR 558
FairOver: INDIAN CREEK
LOGMI 1.80 FR 569 TO, Grant, LA
Built 1982 Load: 20.7 t ADT: 10
558
FairOver: CREEK
NO DATA ENTERED, Winn, LA
Built 2002 Load: 20.7 t ADT: 10
LA0457
FairOver: CHATLIN-LAKE-CANAL
4.34 MI. NE OF US 71, Rapides, LA
Built 1979 Load: 20.7 t ADT: 806
LA1203
FairOver: CREEK
2.36 MI. W OF US71, Rapides, LA
Built 1977 Load: 20.7 t ADT: 1,384
LA0117
FairOver: COMRADE CREEK
7.14 MI. NORTH OF LA 111, Vernon, LA
Built 1962 Load: 20.7 t ADT: 1,513
US0084
FairOver: SALINE BAYOU
1.5 MI E JCT LA 1226, Winn, LA
Built 1983 Load: 20.7 t ADT: 4,081
LA0015
FairOver: VIDALIA CANAL
10.54 MI NORTH OF LA 565, Concordia, LA
Built 1961 Load: 20.7 t ADT: 393
LA0015
FairOver: RED BAYOU CANAL
13.69 MI NORTH OF LA 565, Concordia, LA
Built 1961 Load: 20.7 t ADT: 393
LA0073
FairOver: NEW RIVER
LA0073, Ascension, LA
Built 1957 Load: 20.7 t ADT: 7,929
I0010
FairOver: DALRYMPLE DR/CITY PK LAK
I0010, East Baton Rouge, LA
Built 1964 Load: 20.7 t ADT: 32,092
LA0019
FairOver: UNNAMED STREAM
0.4 MI. SOUTH OF LA 956, East Feliciana, LA
Built 1949 Load: 20.7 t ADT: 5,440
US0190
FairOver: WEST COLYELL CR.
0.7 M E OF LA 1027, Livingston, LA
Built 1932 Load: 20.7 t ADT: 11,488
Florida Ave
FairOver: CANAL
0.7 MI EAST OF 190 B, St. Tammany, LA
Built 1970 Load: 20.7 t ADT: 1,699
OFF HIGHWAY 27
FairOver: ROADSIDE CANAL
NATURE TRAIL, Cameron, LA
Built 1985 Load: 20.9 t ADT: 76
CAROL SUE AVE
FairOver: OUTFALL CANAL
0.2 M S OF BEHRMAN HWY, Jefferson, LA
Built 1980 Load: 20.9 t ADT: 1,000
PARK PLACE DR
FairOver: OUTFALL CANAL
0.2 E. OF BEHRMAN HWY., Jefferson, LA
Built 1970 Load: 20.9 t ADT: 5,000
LA0055
FairOver: ST LOUIS CANAL
.5 MI SOUTH OF LA 24, Terrebonne, LA
Built 1953 Load: 20.9 t ADT: 4,035
LA0098
FairOver: B WYCOFF
1.1 MI EAST OF LA 367, Acadia, LA
Built 1954 Load: 20.9 t ADT: 3,881
LA0100
FairOver: CREEK
1.21 MI EAST OF LA 97, Acadia, LA
Built 1951 Load: 20.9 t ADT: 1,128
RIVERSIDE RD
FairOver: I0010
1.9 MI EAST OF LA 97, Acadia, LA
Built 1961 Load: 20.9 t ADT: 412
LA0029
FairOver: BAYOU MARRON
1.6 MI NORTH OF LA 1165, Evangeline, LA
Built 1951 Load: 20.9 t ADT: 2,770
LA0029
FairOver: COULEE DE MANUEL
1.1 Mi. N. of LA 104, Evangeline, LA
Built 1949 Load: 20.9 t ADT: 3,440
LA1172
FairOver: BAYOU
3.2 MI EAST OF LA 13, Evangeline, LA
Built 1966 Load: 20.9 t ADT: 704
LA0083
FairOver: COMMMERICAL CANAL
1.1 MI SOUTH OF LA 14, Iberia, LA
Built 1948 Load: 20.9 t ADT: 3,451
US0167
FairOver: COULEE GARRAGUE
4.41 Mi NW of LA 182, St. Landry, LA
Built 1955 Load: 20.9 t ADT: 8,773
LA0103
FairOver: TECHE BAYOU @ LEONVILLE
0.22 MI NORTH OF LA 31, St. Landry, LA
Built 1953 Load: 20.9 t ADT: 2,462
LA0031
FairOver: DAIGRE CANAL
1.5 MI N of LA 86, St. Martin, LA
Built 1950 Load: 20.9 t ADT: 4,367
LA0083
FairOver: BELLIVUE CANAL
4.5 MI NORTH OF LA 319, St. Mary, LA
Built 1955 Load: 20.9 t ADT: 3,078
LA0014
FairOver: COULEE KINNEY
1.6 MI E. OF LA 343, Vermilion, LA
Built 1956 Load: 20.9 t ADT: 7,768
LA0082
FairOver: BANKER CANAL
0.1 MI N. OF LA 690, Vermilion, LA
Built 2002 Load: 20.9 t ADT: 2,899
LA0082
FairOver: WARREN CANAL
10.48 MI N. OF LA 3147, Vermilion, LA
Built 1952 Load: 20.9 t ADT: 2,899
LA0335
FairOver: COULEE KENNY
1.84 MI W. OF LA 694, Vermilion, LA
Built 1953 Load: 20.9 t ADT: 2,516
N. Gin Rd
FairOver: LAPORTS COULEE
0.1 Mi S of LA 14, Vermilion, LA
Built 1965 Load: 20.9 t ADT: 397
Linton-Bellevue Rd
FairOver: Bodcau Bayou Trib
4.5 MI W OF LA 157, Bossier, LA
Built 2013 Load: 20.9 t ADT: 220
Rocky Mount Road
FairOver: Lil Cypress Bayou
3.1 Mi. SE of LA 3, Bossier, LA
Built 1994 Load: 20.9 t ADT: 50
Goodman Springs Rd
FairOver: Boggs Creek
4.0 M N OF LA 2, Bossier, LA
Built 1990 Load: 20.9 t ADT: 50
LA0175
FairOver: LITTLE BAYOU NA BONCHASS
1.1 MI NORTH OF LA 3015, De Soto, LA
Built 1957 Load: 20.9 t ADT: 4,306
LA0175
FairOver: CANEY BAYOU
1.6 MI SOUTH OF LA 5, De Soto, LA
Built 1957 Load: 20.9 t ADT: 4,051
LA0175
FairOver: CANEY BAYOU REL
1.4 MI SOUTH OF LA 5, De Soto, LA
Built 1957 Load: 20.9 t ADT: 4,051
US0080
FairOver: BOONE CREEK
1.9 MI WEST OF US371, Webster, LA
Built 1956 Load: 20.9 t ADT: 4,052
LA0160
FairOver: CANEY CREEK
1.7 MI EAST OF LA 3008, Webster, LA
Built 1957 Load: 20.9 t ADT: 502
Bistineau Terrace
FairOver: TRIB TO TAD POLE LAKE
0.2 Mi. N of Hanson Dr., Webster, LA
Built 1979 Load: 20.9 t ADT: 86
LA0134
FairOver: CARRAWAY LAKE
3.9 MI NORTH OF EAST INT, East Carroll, LA
Built 1969 Load: 20.9 t ADT: 759
LA0580
FairOver: CREEK
3.1 Mi E of LA 577, East Carroll, LA
Built 1958 Load: 20.9 t ADT: 448
US0167
FairOver: CREEK
4.6 Mi. SOUTH of LA 3061, Jackson, LA
Built 1951 Load: 20.9 t ADT: 8,018
US0080
FairOver: WEST RELIEF
3.6 MI EAST OF LA 594, Ouachita, LA
Built 1955 Load: 20.9 t ADT: 2,747
Showing 1,201-1,250 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.