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
Pickett Rd
FairOver: YOUNGS COULEE
1.19 M. W of LA 339, Vermilion, LA
Built 1974 Load: 14.3 t ADT: 500
BLEDSOE RD
FairOver: BUCHANAN BAYOU
.1 MI.W. US 171 BLEDSOE R, Caddo, LA
Built 1983 Load: 14.3 t ADT: 77
Gamm Rd Ext
FairOver: GAMM RD EXT. DOOLEY BAYO
1.9 MI N INT HWY 169, Caddo, LA
Built 1929 Load: 14.3 t ADT: 98
LA0507
FairOver: GRAND BAYOU
1.73 MI NORTH OF US 71, Red River, LA
Built 1972 Load: 14.3 t ADT: 691
PINE ST
FairOver: PINE ST.AND TENTH ST.INT
INT. OF PINE AND TEN, Ouachita, LA
Built 1970 Load: 14.3 t ADT: 1,000
OVERLAND STAGE RD
FairOver: CREEK
0.64 MI. W. OF LA 133, Richland, LA
Built 1935 Load: 14.3 t ADT: 163
LA1147
FairOver: E CANEY BRANCH
1.4 MI NW OF LA 113, Beauregard, LA
Built 1967 Load: 14.3 t ADT: 261
LA0107
FairOver: BAYOU JACK RELIEF
0.52 MI. SOUTH OF LA 1179, Avoyelles, LA
Built 1958 Load: 14.3 t ADT: 1,214
FDR 155
FairOver: SCHOOL HOUSE CREEK
LOGMI 5.27 FR 518 TO, Grant, LA
Built 1965 Load: 14.3 t ADT: 15
University St
FairOver: Chatlin Lake Canal
UNIVERSITY STREET ALEXAN, Rapides, LA
Built 1984 Load: 14.3 t ADT: 2,000
Bayou Paul Rd
FairOver: BAYOU PAUL
4.1 MI.NE OF ST.GABR, Iberville, LA
Built 1972 Load: 14.3 t ADT: 160
MURL ST
FairOver: MAGELLAN CANAL
0.3MI.SOUTH OF LA.42, Orleans, LA
Built 1970 Load: 14.5 t
LA3042
FairOver: BAYOU
0.2 Mi. South of LA 106, Evangeline, LA
Built 1962 Load: 14.5 t ADT: 2,684
RAILROAD STREET
FairOver: DRAIN
.3 Mi S of LA 182, Lafayette, LA
Built 2016 Load: 14.5 t ADT: 200
LA3361
FairOver: TECHE BAYOU
0.1 Mi. E of LA 31, St. Martin, LA
Built 1951 Load: 14.5 t ADT: 6,798
LA0322
FairOver: BAYOU TECHE
0.09 MI WEST OF LA 87, St. Mary, LA
Built 1971 Load: 14.5 t ADT: 1,004
LA0004
FairOver: CREEK
3.12 MI EAST OF LA 34, Jackson, LA
Built 1952 Load: 14.5 t ADT: 897
LA0134
FairOver: CREEK
1.5 MI EAST OF LA 583, Richland, LA
Built 1957 Load: 14.5 t ADT: 473
LA0577
FairOver: CREEK
3.1 MI EAST OF LA 585, West Carroll, LA
Built 1960 Load: 14.5 t ADT: 365
Waggoner Tap Rd
FairOver: DRAKE CREEK
1mi N of River Bottom RD, LaSalle, LA
Built 1970 Load: 14.5 t ADT: 100
Off Of 66
FairOver: SPANGLE BRANCH
0.03 M SW LA 66&Old LA 66, West Feliciana, LA
Built 1959 Load: 14.5 t ADT: 2,889
Courtney Rd
FairOver: MIDDLE COLYELL CREEK
5.2 MILES NORTHEAST OF LA, Livingston, LA
Built 2010 Load: 14.5 t ADT: 350
Henry White Rd
FairOver: BLOOD RIVER
3.5 MILES NORTHWEST OF LA, Livingston, LA
Built 2010 Load: 14.5 t ADT: 200
LA1032
FairOver: GRAYS CREEK
LA1032, Livingston, LA
Built 1956 Load: 14.5 t ADT: 9,267
Robbie Lee Rd
FairOver: BEVER CREEK
4.2 MI W OF JCT 447&1024, Livingston, LA
Built 1995 Load: 14.5 t ADT: 250
Mary Kinchen Rd
FairOver: CREEK
2.3 MI.SW OF JCT 442 & 43, Livingston, LA
Built 1980 Load: 14.5 t ADT: 150
LA0038
FairOver: CREEK
0.3 M E OF LA 432, St. Helena, LA
Built 1954 Load: 14.5 t ADT: 933
LA0438
FairOver: DRAIN
0.3 M W OF LA 25, Washington, LA
Built 1967 Load: 14.5 t ADT: 666
LA1264
FairOver: INTER COASTAL WATERWAY
0.5 MI.W.OF DOWMAN R, Orleans, LA
Built 1975 Load: 14.6 t ADT: 437
Bayou Gardens Blvd
FairOver: BAYOU
0.4 MI W OF LA 660, Terrebonne, LA
Built 1969 Load: 14.6 t ADT: 316
Curtis Ln.
FairOver: Rodere Canal
0.3 Mi. S. of La 14, Iberia, LA
Built 1965 Load: 14.6 t ADT: 118
HYPOLITE MILLER RD
FairOver: BAYOU BOURBEUX
0.43 MI S of LA 754, St. Landry, LA
Built 1978 Load: 14.6 t ADT: 400
Bayou Jack Rd
FairOver: Bayou Jack
2.14 Mi SE of LA 107, St. Landry, LA
Built 1978 Load: 14.6 t ADT: 160
Cotten Rd.
FairOver: POSSUM POINT BAYOU
2.1 M S of US 90, St. Mary, LA
Built 1965 Load: 14.6 t ADT: 50
LA0082
FairOver: MARSH DITCH
11.52 Mi S of LA 3147, Vermilion, LA
Built 1958 Load: 14.6 t ADT: 2,899
Elliot Rd
FairOver: COULEE
0.4 Mi S of La 14, Vermilion, LA
Built 1960 Load: 14.6 t ADT: 150
Sparta Rd
FairOver: KCS RAILROAD
0.06 MI N OF US 80, Bienville, LA
Built 1940 Load: 14.6 t ADT: 150
LA0525
FairOver: BOGGY BAYOU
7.0 MI EAST OF LA 169, Caddo, LA
Built 1969 Load: 14.6 t ADT: 4,294
LA0615
FairOver: INDIAN CREEK
1.41 MI EAST OF LA 521, Claiborne, LA
Built 1976 Load: 14.6 t ADT: 697
US0165
FairOver: KINDER CANAL
1.5 MI. N OF INT US 190, Allen, LA
Built 1932 Load: 14.6 t ADT: 11,886
US0090
FairOver: CHOUPIQUE BAYOU
3.7 MI EAST OF LA 388, Calcasieu, LA
Built 1954 Load: 14.6 t ADT: 2,509
HOLTON-HARRIS RD
FairOver: VERNON LAKE
1.89 M. S. OF JCT LA 111, Vernon, LA
Built 1965 Load: 14.6 t ADT: 180
NAIRN DR
FairOver: INTERSTATE 10
0.2 mi. N of LA 427, East Baton Rouge, LA
Built 1968 Load: 14.6 t ADT: 84,950
LA0986
FairOver: CHOCTAW BAYOU
0.72 M W of LA 986&LA 1, West Baton Rouge, LA
Built 1969 Load: 14.6 t ADT: 1,204
LA3116
FairOver: CREEK
1.7 MI WEST OF LA 13, Acadia, LA
Built 1953 Load: 14.7 t ADT: 600
LA1160
FairOver: BAYOU
1.19 MI WEST OF LA 13, Evangeline, LA
Built 1963 Load: 14.7 t ADT: 2,000
Lake Rd
FairOver: COULEE
0.9 miles E. of Goldie Rd, Vermilion, LA
Built 1970 Load: 14.7 t ADT: 100
OLD PUMP RD
FairOver: CALCASIEU RIVER
1.4 MI NORTH OF US 190, Allen, LA
Built 1960 Load: 14.7 t ADT: 581
LA0036
FairOver: DRAIN
1.3 M W OF LA 41, St. Tammany, LA
Built 1955 Load: 14.7 t ADT: 2,206
LA0038
FairOver: BEAVER CREEK
0.1 M W OF LA 1050, Tangipahoa, LA
Built 1952 Load: 14.7 t ADT: 1,535
Showing 251-300 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.