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
Jot Em Down Rd
FairOver: SALINE BAYOU
3.3 MI NORTH OF LA 507, Bienville, LA
Built 1986 Load: 27.9 t ADT: 85
US0171
FairOver: BOGGY BAYOU
2.0 MI. S. OF LA 526, Caddo, LA
Built 1953 Load: 27.9 t ADT: 16,911
Springridge-Texas
FairOver: MILL CREEK
0.4 MI. EAST OF TEX, Caddo, LA
Built 1977 Load: 27.9 t ADT: 5,102
Keith-Hall Rd
FairOver: BUCHANAN BAYOU
0.2 MI. SOUTHOF PH. RD.22, Caddo, LA
Built 1998 Load: 27.9 t ADT: 95
Keithvil-Sprrdg Rd
FairOver: KHVL SPGRD6 RD TRB BUCH
3.8 M.W.OLD MANSFIEL, Caddo, LA
Built 1975 Load: 27.9 t ADT: 140
MT ZION RD
FairOver: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Built 1988 Load: 27.9 t ADT: 3,127
MT ZION RD
FairOver: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Built 1979 Load: 27.9 t ADT: 2,828
Mooringsport-Latex
FairOver: GARDNER BAYOU
1.1 MI. EAST OF TEX.LINE, Caddo, LA
Built 1981 Load: 27.9 t ADT: 59
US0079
FairOver: BEAVER BRANCH
1.03 MI NORTH OF LA 9, Claiborne, LA
Built 1979 Load: 27.9 t ADT: 5,728
Lisbon Hebron Rd
FairOver: DARBONNE BAYOU TRIBUTAR
2.29 MI. S. OF LA 2, Claiborne, LA
Built 1986 Load: 27.9 t ADT: 90
LA0148
FairOver: CREEK
4.53 MI SOUTH OF LA 34, Jackson, LA
Built 1978 Load: 27.9 t ADT: 318
PATTON STREET
FairOver: DINDE BAYOU
0.3 MI E OF LA 27, Calcasieu, LA
Built 2021 Load: 27.9 t ADT: 3,593
LA1130
FairOver: DRAIN
.49 MI NORTH OF US 190, Jefferson Davis, LA
Built 1964 Load: 27.9 t ADT: 448
Spring Bayou Rd
FairOver: LITTLE RIVER
0.29 MI. SOUTH OF LA 1190, Avoyelles, LA
Built 1998 Load: 27.9 t ADT: 550
LA0153
FairOver: ANTOINE CREEK
9.55 MI. N OF INT LA9, Natchitoches, LA
Built 1977 Load: 27.9 t ADT: 609
US0071
FairOver: UP RAILROAD
.3 MI. N OF INT I-49, Rapides, LA
Built 1974 Load: 27.9 t ADT: 17,593
Turkey Creek Rd
FairOver: LITTLE SPRING CREEK
1.0 MILE EAST OF US 165, Rapides, LA
Built 1997 Load: 27.9 t ADT: 950
Plantation Rd
FairOver: BAYOU RAPIDES
1.84 MI. NORTH OF LA 496, Rapides, LA
Built 1992 Load: 27.9 t ADT: 1,340
Hooper Rd
FairOver: FLAGON BAYOU
0.76 MI. NORTH OF LA 3225, Rapides, LA
Built 1990 Load: 27.9 t ADT: 1,200
LA0015
FairOver: CREEK
4.14 M S of LA 565, Concordia, LA
Built 2004 Load: 27.9 t ADT: 399
Old Hermitage Pkwy
FairOver: DRAIN CANAL
.25 MI E. OF GARDERE LN., East Baton Rouge, LA
Built 1979 Load: 27.9 t ADT: 1,572
Meadow Bend Dr
FairOver: DRAIN CANAL
.30 MI N. OF BURBANK BLVD, East Baton Rouge, LA
Built 1984 Load: 27.9 t ADT: 351
Jackson Rd
FairOver: LITTLE SANDY CREEK
5.5 MI.N.LA409 LA64, East Baton Rouge, LA
Built 1971 Load: 27.9 t ADT: 1,379
LA1019
FairOver: Canada Branch
0.4 miles west of LA 447, Livingston, LA
Built 1998 Load: 27.9 t ADT: 11,852
I0012
FairOver: I12 OVER US 190
2.6 M W OF LA 59, St. Tammany, LA
Built 1976 Load: 27.9 t ADT: 79,563
I0310
FairOver: RAMPS/US 61
0.2 M NORTH OF US 61, St. Charles, LA
Built 1992 Load: 28.1 t ADT: 15,642
I0310
FairOver: ICG.RR RAMP E F &H LA4
5.14 MI S I-10 I-310 JCT, St. Charles, LA
Built 1983 Load: 28.1 t ADT: 47,396
LA0342
FairOver: QUEUE DE TORTUE BAYOU
0.60 MI E. OF LA 35, Acadia, LA
Built 1953 Load: 28.1 t ADT: 1,075
LA0098
FairOver: BAYOU PLAQUEMINE BRULE
1.9 MI EAST OF LA 1110, Acadia, LA
Built 1956 Load: 28.1 t ADT: 994
LA0091
FairOver: CREEK
2.33 MI NORTH OF US 90, Acadia, LA
Built 1963 Load: 28.1 t ADT: 1,617
LA0095
FairOver: I0010
1.02 MI NORTH OF I-10, Acadia, LA
Built 1966 Load: 28.1 t ADT: 5,938
LA0115
FairOver: COCODRIE BAYOU
.74 MI NORTH OF LA 106, Evangeline, LA
Built 1957 Load: 28.1 t ADT: 711
LA0083
FairOver: IVANHOE CANAL
2.8 Mi EAST OF LA 319, St. Mary, LA
Built 1959 Load: 28.1 t ADT: 3,078
Clarence Lege Rd
FairOver: MAREE MICHEL CANAL
0.5 Mi S of LA 14, Vermilion, LA
Built 1960 Load: 28.1 t ADT: 100
LA0002
FairOver: MIDDLEFORK B.DARBONNE RL
3.0 MI EAST OF LA 152, Claiborne, LA
Built 1949 Load: 28.1 t ADT: 990
LA0002
FairOver: NICK CREEK
3.6 MI EAST OF LA 152, Claiborne, LA
Built 1949 Load: 28.1 t ADT: 990
OLD HWY 602
FairOver: MILL BAYOU
1.56 MI SOUTH OF I-20, Madison, LA
Built 1951 Load: 28.1 t ADT: 420
LA0142
FairOver: SHILD CREEK
.54 MI NORTH OF LA 543, Morehouse, LA
Built 1950 Load: 28.1 t ADT: 4,706
LA0183
FairOver: HURRICANE BAYOU
1.2 MI NORTH OF US 80, Richland, LA
Built 1950 Load: 28.1 t ADT: 1,467
US0171
FairOver: I-10
0.3 MI N OF LA 3020, Calcasieu, LA
Built 1963 Load: 28.1 t ADT: 13,667
US0171
FairOver: I-10
0.3 MI N OF HWY 3020, Calcasieu, LA
Built 1963 Load: 28.1 t ADT: 18,040
Freeland Road
FairOver: Bayou
3.2 Mi N. of LA 102, Jefferson Davis, LA
Built 2017 Load: 28.1 t ADT: 50
US0171
FairOver: CHOCTAW BAYOU
1.1 MI. NORTH OF LA 174, Sabine, LA
Built 1962 Load: 28.1 t ADT: 4,790
LA0117
FairOver: LIBERTY CREEK
1.16 MI. NORTH OF LA 8, Vernon, LA
Built 1954 Load: 28.1 t ADT: 1,513
US0065
FairOver: BIG CHOCTAW BAYOU
.1 MI NORTH OF LA 896, Tensas, LA
Built 1959 Load: 28.1 t ADT: 1,247
LA1008
FairOver: BAYOU LAFOURCHE
LA1008, Assumption, LA
Built 1952 Load: 28.1 t ADT: 3,279
Ellerslie Dr
FairOver: NORTHDALE CANAL
0.1 MI W of LA 3164, East Baton Rouge, LA
Built 1960 Load: 28.1 t ADT: 156
LA0019
FairOver: LITTLE COMITE RIVER
LA0019, East Feliciana, LA
Built 1951 Load: 28.1 t ADT: 3,188
LA0063
FairOver: MCQUINNEY BAYOU R
4.4 M NW of LA 37&LA 63, East Feliciana, LA
Built 1957 Load: 28.1 t ADT: 1,584
LA0066
FairOver: LITTLE BAYOU SARA
LA0066, West Feliciana, LA
Built 1961 Load: 28.1 t ADT: 1,677
Showing 2,401-2,450 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.