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
LA0399
PoorOver: HORSE BRANCH
0.2 MI N OF LA 112, Beauregard, LA
Built 1975 Load: 15.6 t ADT: 957
LA0097
PoorOver: I-10
1.6 MI NE of LA 102, Jefferson Davis, LA
Built 1964 Load: 15.6 t ADT: 1,175
LA0472
PoorOver: BIG BEAR CREEK
7.9 MI EAST OF US 167, Grant, LA
Built 1938 Load: 15.6 t ADT: 88
Forest Rd
PoorOver: CANEY BRANCH
0.5 MILES NW OF LA 118, Natchitoches, LA
Built 1972 Load: 15.6 t ADT: 42
Shady Grove Rd
PoorOver: MIDDLE CREEK
1.33 MI. EAST OF LA 117, Natchitoches, LA
Built 1983 Load: 15.6 t ADT: 92
Shady Grove Rd
PoorOver: MIDDLE CREEK
1.22 MI. EAST OF LA 117, Natchitoches, LA
Built 1983 Load: 15.6 t ADT: 92
Shady Grove Rd
PoorOver: MIDDLE CREEK
1.06 MI. EAST OF LA 117, Natchitoches, LA
Built 1983 Load: 15.6 t ADT: 90
Doshie Rd
PoorOver: CHERRY WINCHE CREEK TRIB
1.1 MILES NORTH OF LA 112, Rapides, LA
Built 1978 Load: 15.6 t ADT: 100
US0190
PoorOver: US 190 OVER US 61-SCENIC
0.78 MI W OF I-110 SB, East Baton Rouge, LA
Built 1940 Load: 15.6 t ADT: 12,262
Fernwood Dr
PoorOver: DRAINAGE CANAL
450 Ft N of US 190, East Baton Rouge, LA
Built 1960 Load: 15.6 t ADT: 200
LA0997
PoorOver: B PIGEON/LOWER GRAND R.
0.01 Mi. W of LA 75, Iberville, LA
Built 1957 Load: 15.6 t ADT: 845
US0061
PoorOver: I-10
US 61 OVER I-10, Orleans, LA
Built 1940 Load: 15.9 t ADT: 19,200
ENGLISH TURN RD
PoorOver: MISSISSIPPI RIVER
0.05 MI SW OF LA 3137, Plaquemines, LA
Built 2002 Load: 15.9 t
Avenue G
PoorOver: MISSISSIPPI RIVER
.2 MILES FROM LA 23 ON AV, Plaquemines, LA
Built 2002 Load: 15.9 t
Nation Rd.
PoorOver: Duralde Coulee
0.6 Mi. S. of La 13, Acadia, LA
Built 1970 Load: 15.9 t ADT: 336
Mullins Rd
PoorOver: Tete Bayou
0.7 Mi N. of La 87, Iberia, LA
Built 1967 Load: 15.9 t ADT: 254
W. Willow St.
PoorOver: Coulee Mine
0.36 Mi W of LA 3184, Lafayette, LA
Built 1975 Load: 15.9 t ADT: 1,960
Portage Levee Rd.
PoorOver: WEST LEVEE BORROW PIT
1.37 Mi NE of LA 737, St. Landry, LA
Built 1970 Load: 15.9 t ADT: 310
Courtableau Rd
PoorOver: Courtableau Bayou
0.25 MI N of US 190, St. Landry, LA
Built 1986 Load: 15.9 t ADT: 150
LA0182
PoorOver: ATCHAF.R/BERWICK BAY
1.4 MI WEST OF US 90, St. Mary, LA
Built 1933 Load: 15.9 t ADT: 12,788
LA0082
PoorOver: LONG DITCH
14.72 Mi S of La 3147, Vermilion, LA
Built 1958 Load: 15.9 t ADT: 2,899
Reese Rd
PoorOver: COULEE
0.2 Mi N La 14, Vermilion, LA
Built 1960 Load: 15.9 t ADT: 50
Winfield Rd
PoorOver: Connell Branch
2.0 MI N OF US HWY 8, Bossier, LA
Built 1960 Load: 15.9 t ADT: 340
US0080
PoorOver: I-20
2.1 MI NW OF US 79, Caddo, LA
Built 1964 Load: 15.9 t ADT: 3,924
US0071
PoorOver: ICG RR
.5 MI NORTH OF I-20, Caddo, LA
Built 1940 Load: 15.9 t ADT: 5,484
SOUTH LAKESHORE DR
PoorOver: BICKHAM BAYOU
1.8 MI N OF US80, Caddo, LA
Built 1981 Load: 15.9 t ADT: 1,286
LA0534
PoorOver: BLACK BAYOU
2.9 MI NORTH OF LA 534-S, Claiborne, LA
Built 1973 Load: 15.9 t ADT: 118
LA0159
PoorOver: CREEK
1.7 MI NORTH OF LA 615, Webster, LA
Built 1966 Load: 15.9 t ADT: 813
LA0579
PoorOver: COOKS SLOUGH
1.33 MI SOUTH OF LA 577, East Carroll, LA
Built 1961 Load: 15.9 t ADT: 119
LA0838
PoorOver: STEEP BAYOU
6.4 MI EAST OF LA 546, Ouachita, LA
Built 1955 Load: 15.9 t ADT: 8,105
LA0026
PoorOver: CREEK
4.1 MI E of LA 377, Allen, LA
Built 1968 Load: 15.9 t ADT: 2,151
FARM SUPPLY ROAD
PoorOver: CHENE BAYOU
0.5 MI N of LA1126, Jefferson Davis, LA
Built 1975 Load: 15.9 t ADT: 80
ABELL ROAD
PoorOver: GULLY
3.7 MI. E. OF INT. 1, Jefferson Davis, LA
Built 1976 Load: 15.9 t ADT: 50
COUNTRY RD.
PoorOver: CREEK
0.5 MI N of LA102, Jefferson Davis, LA
Built 1960 Load: 15.9 t ADT: 30
LA0114
PoorOver: BELLDEAU BAYOU
3.07 MILES SE OF LA 1, Avoyelles, LA
Built 1973 Load: 15.9 t ADT: 2,890
LA1243
PoorOver: FLAT BAYOU
2.7 MI. N OF LA488, Rapides, LA
Built 1980 Load: 15.9 t ADT: 2,861
TORO CHURCH RD
PoorOver: MILL CREEK
0.7 Mi S of Plainview Rd, Sabine, LA
Built 1965 Load: 15.9 t ADT: 50
LA0008
PoorOver: CREEK
3.3 MI EAST OF LA 469, Vernon, LA
Built 1956 Load: 15.9 t ADT: 1,700
BLACKMON RD
PoorOver: CASTOR BAYOU
1.0 M. W. OF COOPER RD., Vernon, LA
Built 1978 Load: 15.9 t ADT: 90
CRAIGERVILLE RD
PoorOver: MAYHAW BRANCH
3.2 M. E. OF LA 117 NEAR, Vernon, LA
Built 1962 Load: 15.9 t ADT: 40
LA1229
PoorOver: REDLAND CREEK
.86 MI WEST OF LA 34, Winn, LA
Built 1949 Load: 15.9 t ADT: 39
Brasher Rd
PoorOver: CREEK
2.9 miles N of LA 503, LaSalle, LA
Built 1970 Load: 15.9 t ADT: 75
Ben Hur Rd
PoorOver: ELBOW BAYOU
1.8 M S of LA 30, East Baton Rouge, LA
Built 1960 Load: 15.9 t ADT: 752
Tiger Bend Rd
PoorOver: DRAINAGE BAYOU
2.9 MI. E. of LA 73, East Baton Rouge, LA
Built 1965 Load: 15.9 t ADT: 5,630
Monterrey Blvd
PoorOver: JONES CREEK
0.70 MI N OF US 190, East Baton Rouge, LA
Built 1960 Load: 15.9 t ADT: 5,630
Port Hudson-Pride
PoorOver: WHITE BAYOU
1.5 M E OF LA 964, East Baton Rouge, LA
Built 1970 Load: 15.9 t ADT: 2,080
Wilison-Clinton Rd
PoorOver: COMITE RIVER
4.2 M E of LA 19, East Feliciana, LA
Built 1995 Load: 15.9 t ADT: 84
Wilison-Clinton Rd
PoorOver: DRAINAGE CREEK
3.9 M E of LA 19, East Feliciana, LA
Built 1994 Load: 15.9 t ADT: 84
Beamow
PoorOver: BAYOU MARINGOUIN
MARINGOUIN, Pointe Coupee, LA
Built 1973 Load: 15.9 t ADT: 110
Shadow Spring Blvd
PoorOver: MILLERS CANAL
0.85 MI S OF I12 ON LA 16, Livingston, LA
Built 1978 Load: 15.9 t ADT: 500
Showing 11,851-11,900 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.