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
LA0001
FairOver: DITCH
1.2 MI. N OF N INT LA119, Natchitoches, LA
Built 1936 Load: 32.4 t ADT: 2,835
LA0156
FairOver: BAYOU TERRY
1.1 MI. E OF INT LA9, Natchitoches, LA
Built 1956 Load: 32.4 t ADT: 825
LA0156
FairOver: CREEK
5.9 MI. E OF INT LA9, Natchitoches, LA
Built 1926 Load: 32.4 t ADT: 597
LA0118
FairOver: CREEK
.92 MI. E OF INT LA117, Natchitoches, LA
Built 1968 Load: 32.4 t ADT: 164
SUSEK DR
FairOver: BAYOU MARIA TRIB. #1
0.74 MI. EAST OF LA 3144, Rapides, LA
Built 2011 Load: 32.4 t ADT: 4,200
US0071
FairOver: BAYOU RAPIDES
0.17 MI. NORTH OF LA 496, Rapides, LA
Built 1944 Load: 32.4 t ADT: 42,243
US0165
FairOver: DIVERSION CANAL
1.06 M S OF TRAFFIC CIRCL, Rapides, LA
Built 1944 Load: 32.4 t ADT: 10,946
LA0121
FairOver: BURNEY BRANCH
0.94 MI. SOUTH OF LA 28, Rapides, LA
Built 1929 Load: 32.4 t ADT: 2,368
LA0028
FairOver: CLEAR RUN CREEK
0.84 MI. EAST OF US 167, Rapides, LA
Built 1971 Load: 32.4 t ADT: 14,124
LA0028
FairOver: CREEK
0.49 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0028
FairOver: CREEK
0.79 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0028
FairOver: WATERS CREEK
2.19 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0112
FairOver: CREEK
2.52 MI. SOUTH OF LA 462, Rapides, LA
Built 1960 Load: 32.4 t ADT: 1,197
LA0488
FairOver: DITCH
.64 MI. E OF LA1199, Rapides, LA
Built 1958 Load: 32.4 t ADT: 2,343
LA0028
FairOver: KINCAID LAKE
2.4 M. E OF E JCT. LA 121, Rapides, LA
Built 1944 Load: 32.4 t ADT: 9,482
I0049
FairOver: CHERRY CREEK
5.1 MI. N OF LA8, Rapides, LA
Built 1984 Load: 32.4 t ADT: 11,969
Blue Lake Rd
FairOver: TANNER CREEK
4.4 MILES SE OF LA 497, Rapides, LA
Built 1997 Load: 32.4 t ADT: 180
Blue Lake Rd
FairOver: HURRICANE CREEK
0.8 MILES EAST OF LA 497, Rapides, LA
Built 2001 Load: 32.4 t ADT: 700
Bert Paul Rd
FairOver: SLASH BAYOU
0.3 MI. WEST OF LA 115, Rapides, LA
Built 1985 Load: 32.4 t ADT: 160
US0171
FairOver: CASTOR BAYOU
3.83 MI. NORTH OF LA 483, Sabine, LA
Built 1990 Load: 32.4 t ADT: 4,249
LA0175
FairOver: CREEK
6.28 MI. NORTH OF LA 1216, Sabine, LA
Built 1946 Load: 32.4 t ADT: 1,786
LA0175
FairOver: CREEK
1.05 M N OF N JCT LA 175, Sabine, LA
Built 1950 Load: 32.4 t ADT: 1,587
LA0175
FairOver: CREEK
3.03 M N OF N JCT. LA 120, Sabine, LA
Built 1949 Load: 32.4 t ADT: 1,587
LA0175
FairOver: CREEK
0.95 MI. NORTH OF LA 174, Sabine, LA
Built 1934 Load: 32.4 t ADT: 1,900
LA0174
FairOver: CREEK
2.7 MI EAST OF LA 191, Sabine, LA
Built 1957 Load: 32.4 t ADT: 1,064
LA0483
FairOver: CREEK
2.7 MI NORTH OF US 171, Sabine, LA
Built 1924 Load: 32.4 t ADT: 525
LA0191
FairOver: MACDONALD BAYOU
1.0 MI NORTH OF LA 174, Sabine, LA
Built 1959 Load: 32.4 t ADT: 610
LA0191
FairOver: CREEK
1.1 MI NORTH OF LA 174, Sabine, LA
Built 1959 Load: 32.4 t ADT: 610
LA3229
FairOver: CREEK
.55 MI SOUTH OF LA482, Sabine, LA
Built 1961 Load: 32.4 t ADT: 543
LA3229
FairOver: CREEK
1.73 MI SOUTH OF LA 482, Sabine, LA
Built 1961 Load: 32.4 t ADT: 543
LA3229
FairOver: UNNAMED CREEK
3.33 MI SOUTH OF LA 482, Sabine, LA
Built 1961 Load: 32.4 t ADT: 543
GEORGIA AVE
FairOver: SAN JOSE CREEK TRIB.
0.04 MI. WEST OF US 171, Sabine, LA
Built 1987 Load: 32.4 t ADT: 5,100
LA0392
FairOver: MILL CREEK
1.6 MI WEST OF LA 111, Vernon, LA
Built 1965 Load: 32.4 t ADT: 735
LA1211
FairOver: CREEK
4.73 MILES WEST OF US 171, Vernon, LA
Built 1958 Load: 32.4 t ADT: 2,663
HAWKS RD
FairOver: FLAT CREEK
1.2M WEST OF US 171, Vernon, LA
Built 1992 Load: 32.4 t ADT: 490
US0167
FairOver: CREEK
2.1 MI NORTH OF LA 126, Winn, LA
Built 1924 Load: 32.4 t ADT: 5,107
LA0127
FairOver: CREEK
12.01 M. NW CALDWELL LINE, Winn, LA
Built 2010 Load: 32.4 t ADT: 183
US0167
FairOver: TANNEHILL CREEK
0.32 MI. NORTH OF LA 505, Winn, LA
Built 1952 Load: 32.4 t ADT: 5,367
US0167
FairOver: TANNEHILL CREEK
0.89 MI. NORTH OF LA 505, Winn, LA
Built 1952 Load: 32.4 t ADT: 5,367
LA0034
FairOver: CREEK
0.29 MI. NORTH OF LA 471, Winn, LA
Built 1952 Load: 32.4 t ADT: 965
LA0124
FairOver: PINEY WOODS CREEK
4.24 MI EAST OF US 84, Winn, LA
Built 1929 Load: 32.4 t ADT: 1,348
LA0015
FairOver: OLD RIVER LOW SILL C.S.
75 MI NW OF BATON ROUGE, Concordia, LA
Built 1959 Load: 32.4 t ADT: 602
US0165
FairOver: CREEK
1.6 MI. N OF LA 844, Caldwell, LA
Built 1945 Load: 32.4 t ADT: 6,071
LA0124
FairOver: CALLIHAN CREEK
2.0 MI NORTH OF LA 8, Catahoula, LA
Built 1996 Load: 32.4 t ADT: 1,706
Dixie Springs Rd
FairOver: Creek
0.8 MI E OF LA 126, Catahoula, LA
Built 1989 Load: 32.4 t ADT: 50
Catahoula Ch Rd
FairOver: HAGGERTY CREEK
1.44 MI SW FROM LA124, Catahoula, LA
Built 1987 Load: 32.4 t ADT: 70
Red R. Levee Rd
FairOver: Cocodrie Bayou
0.8 MI N OF LA 910, Concordia, LA
Built 1955 Load: 32.4 t ADT: 16
LA0127
FairOver: CREEK
2.5 MI NORTH OF LA 770, LaSalle, LA
Built 1950 Load: 32.4 t ADT: 3,888
US0065
FairOver: BUCKNERBAYOU
2.6 MI SOUTH OF LA 590, Tensas, LA
Built 1949 Load: 32.4 t ADT: 1,795
US0065
FairOver: LAKE BRUIN BAYOU
1.1 MI SOUTH OF LA 605, Tensas, LA
Built 1948 Load: 32.4 t ADT: 1,873
Showing 3,451-3,500 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.