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
LA0022
FairOver: PANAMA CANAL
0.6 M SW of LA 22&LA 70, Ascension, LA
Built 1950 Load: 26.3 t ADT: 22,576
LA0019
FairOver: DOYLE BAYOU
1.7 M N of LA 412, East Feliciana, LA
Built 1949 Load: 26.3 t ADT: 5,682
LA0955
FairOver: TRIB OLIVE BRANCH
3.7 M S of LA 10, East Feliciana, LA
Built 1966 Load: 26.3 t ADT: 989
US0190
FairOver: MORGANZA FLDWY
US0190, Pointe Coupee, LA
Built 1945 Load: 26.3 t ADT: 12,942
LA1024
FairOver: CREEK
1.0 M E OF LA 447, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA1024
FairOver: CREEK
0.2 M N OF US 190, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA1024
FairOver: CREEK
0.1 M N OF US 190, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA1036
FairOver: EAST HOG BRANCH
LA1036, St. Helena, LA
Built 1962 Load: 26.3 t ADT: 601
LA1045
FairOver: TICKFAW RIVER
LA1045, St. Helena, LA
Built 1962 Load: 26.3 t ADT: 1,509
LA0022
FairOver: DRAIN
0.2 M E OF LA 445, Tangipahoa, LA
Built 1938 Load: 26.3 t ADT: 6,775
LA1050
FairOver: BEAVER CREEK
0.65 MILES NORTH OF LA 44, Tangipahoa, LA
Built 1960 Load: 26.3 t ADT: 1,583
CHRISTMAS ROAD
FairOver: BAYOU DES FAMILLES
LA 45 SOUTH. FOLLOW SIGN, Jefferson, LA
Built 1988 Load: 26.3 t ADT: 300
LAPALCO BLVD
FairOver: VERRET CANAL
0.3MI.E.OF MANHATTAN, Jefferson, LA
Built 1976 Load: 26.6 t ADT: 30,000
US0090
FairOver: IND CL/FRANCE RD/N.O. RR
0.50 M NORTH OF I-10, Orleans, LA
Built 1989 Load: 26.6 t ADT: 1,215
I0510
FairOver: CITY STREETS
1.0M NORTH OF US 90, Orleans, LA
Built 1992 Load: 26.6 t ADT: 10,794
Shed Rd
FairOver: TRIB. TO MACKS BAYOU
1.3 MI EAST OF LA 3105, Bossier, LA
Built 1986 Load: 26.6 t ADT: 4,137
I0049
FairOver: SWIFT BAYOU CANAL
0.16 M. N. OF LA 530, Caddo, LA
Built 2013 Load: 26.6 t ADT: 6,846
FRANK BELL RD
FairOver: BAYOU COULEE
3.4 MI E of LA 138, Morehouse, LA
Built 1995 Load: 26.6 t ADT: 70
PURDY RD
FairOver: I-20
1.4 MI WEST OF LA 151, Ouachita, LA
Built 1960 Load: 26.6 t ADT: 3,620
MILLER RD
FairOver: PETTICOAT BAYOU
LOG MILE 0.35 RT. 318, Ouachita, LA
Built 1981 Load: 26.6 t ADT: 330
CROWELL RD
FairOver: BROWN CREEK
1.1 MI. SOUTH of LA 34, Ouachita, LA
Built 1983 Load: 26.6 t ADT: 188
OLD SPANISH TRAIL
FairOver: CREEK
2.0 MI WEST OF LA 379, Calcasieu, LA
Built 1995 Load: 26.6 t ADT: 344
Veterans Drive
FairOver: Bayou Rapides
125 N. OF RAPIDES AVE., Rapides, LA
Built 1985 Load: 26.6 t ADT: 1,550
BAILEY RD
FairOver: LITTLE CLEAR CREEK
2.55 MILES WEST OF LA 10, Vernon, LA
Built 1984 Load: 26.6 t ADT: 610
LA3009
FairOver: LAKE ST PETER CANAL
1.41 MI WEST OF LA 568, Tensas, LA
Built 1982 Load: 26.6 t ADT: 31
Stanford Ave
FairOver: UNIVERSITY LAKE SPILLWAY
1.4 M S of I10, East Baton Rouge, LA
Built 1965 Load: 26.6 t ADT: 23,240
Plains-Port Hudson
FairOver: DRAIN BAYOU
2.13 M E OF LA 61, East Baton Rouge, LA
Built 1958 Load: 26.6 t ADT: 1,780
LA0404
FairOver: BAYOU BLACK
0.17 M W LA 404&LA 3001, Iberville, LA
Built 1970 Load: 26.6 t ADT: 551
LA0435
FairOver: TALISHEEK CREEK
0.3 M S OF LA 41, St. Tammany, LA
Built 1977 Load: 26.6 t ADT: 560
US0090-B
FairOver: RAMP LA-3
.3 MI EAST OF LA 23, Jefferson, LA
Built 1985 Load: 26.9 t ADT: 15,955
US0090-B
FairOver: RAMP BA-2
2.6 MI EAST OF LA 23, Jefferson, LA
Built 1984 Load: 26.9 t ADT: 15,955
PEREZ RD
FairOver: DRAINAGE CANAL
0.01 MI W. OF HWY 39, Plaquemines, LA
Built 1968 Load: 26.9 t ADT: 220
LA0095
FairOver: DRAIN
1.2 MI N. OF LA 365, Acadia, LA
Built 1986 Load: 26.9 t ADT: 5,275
LA0507
FairOver: BLACK LAKE BAYOU
4.56 MI WEST OF LA 153, Bienville, LA
Built 1980 Load: 26.9 t ADT: 582
I0020
FairOver: RAMP H/LA AVE.
.56 M. South of US 79, Caddo, LA
Built 1965 Load: 26.9 t ADT: 10,940
Springridge-Texas
FairOver: SPRDG TEX LINE JOHNSON B
0.4 MI. WEST OF LA 1, Caddo, LA
Built 1979 Load: 26.9 t ADT: 2,606
Jewella NB
FairOver: AIRPORT DITCH
0.2 MI. SO.OF LA 511, Caddo, LA
Built 1972 Load: 26.9 t ADT: 20,178
PIERREMONT AVE
FairOver: BAYOU PIERRE
0.8 MI WEST OF LA 1, Caddo, LA
Built 1985 Load: 26.9 t ADT: 14,451
LA0177
FairOver: LITTLE WALLACE BAYOU
5.6 MI EAST OF LA 175, De Soto, LA
Built 1959 Load: 26.9 t ADT: 1,398
I0020
FairOver: YOUNGS BAYOU
.7 MI EAST OF LA 594, Ouachita, LA
Built 1965 Load: 26.9 t ADT: 15,642
GREEN BRIDGE RD
FairOver: BAYOU DE LOUTRE
6 MI E OF SPEARSVILL, Union, LA
Built 1984 Load: 26.9 t ADT: 99
US0171
FairOver: CALCASIEU RIVER
1.7 MI NORTH OF I-10, Calcasieu, LA
Built 1969 Load: 26.9 t ADT: 32,659
I0010
FairOver: LA 1256
I-10 OVER LA 27, Calcasieu, LA
Built 2004 Load: 26.9 t ADT: 86,969
LA3056
FairOver: DRAIN
0.9 MI S OF LA 14, Jefferson Davis, LA
Built 1961 Load: 26.9 t ADT: 408
Lee Chatelain Rd
FairOver: BAYOU GRAND ECORE
2.05 MI. NORTH OF LA 114, Avoyelles, LA
Built 1992 Load: 26.9 t ADT: 170
LA0474
FairOver: CREEK
3.37 MI EAST OF LA 191, Sabine, LA
Built 1956 Load: 26.9 t ADT: 1,105
Bayou Dr
FairOver: LITTLE BAY
1.7 MI. N. OF PIERRE PART, Assumption, LA
Built 1984 Load: 26.9 t ADT: 1,056
I0010
FairOver: NORTH BOUND
I0010, East Baton Rouge, LA
Built 1974 Load: 26.9 t ADT: 32,092
Hurdle Rd
FairOver: BAYOU MARINGOUIN
JUNCTION LA 76, Iberville, LA
Built 1984 Load: 26.9 t ADT: 50
LA1043
FairOver: SANDY RUN
1.8 M N OF LA 10, St. Helena, LA
Built 1971 Load: 26.9 t ADT: 320
Showing 2,201-2,250 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.