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
LA0006
FairOver: YOUNGS BAYOU
0.11 MI. WEST OF LA 1, Natchitoches, LA
Built 1974 Load: 23.7 t ADT: 14,431
Windermere Dr
FairOver: MCADAMS DITCH
0.4 MI. SOUTH OF LA 28, Rapides, LA
Built 1982 Load: 23.7 t ADT: 2,600
Cooper Rd
FairOver: BAYOU RAPIDES
1.52 MI. NORTH OF LA 28, Rapides, LA
Built 2001 Load: 23.7 t ADT: 200
BAILEY RD
FairOver: CLEAR BRANCH
0.36 MILES WEST OF LA 10, Vernon, LA
Built 1981 Load: 23.7 t ADT: 110
Big Creek Rd
FairOver: LOONEY CANAL (PINE BAYOU
LOG MI 0.15 FR 325 TO 327, Franklin, LA
Built 2004 Load: 23.7 t ADT: 250
I0010
FairOver: COLLEGE DRIVE
I0010, East Baton Rouge, LA
Built 1967 Load: 23.7 t ADT: 32,092
I0110
FairOver: US 61B & LA 73
JCT of I-110 & LA 73, East Baton Rouge, LA
Built 1963 Load: 23.7 t ADT: 32,092
I0110
FairOver: CANAL
400 FT S of LA 408, East Baton Rouge, LA
Built 1976 Load: 23.7 t ADT: 32,092
LA0409
FairOver: SANDY CREEK RELIEF
7.01 MI N JCT LA 64, East Baton Rouge, LA
Built 1981 Load: 23.7 t ADT: 3,092
LA0957
FairOver: NO NAME CREEK
0.9 M N of LA 412&LA 957, East Feliciana, LA
Built 1981 Load: 23.7 t ADT: 1,193
LA0417
FairOver: CLAY BAYOU
1.16 M W of LA 418, Pointe Coupee, LA
Built 1948 Load: 23.7 t ADT: 503
LA0965
FairOver: HAMMER CREEK
LA0965, West Feliciana, LA
Built 1973 Load: 23.7 t ADT: 525
GEORGIA AVE
FairOver: BUNDICK CREEK
VE799315, Vernon, LA
Built 1978 Load: 23.7 t ADT: 336
GUYTON RD
FairOver: DRAIN TO CHENIERE BRAKE
0.7 MI. W. HWY. 3033, Ouachita, LA
Built 1979 Load: 23.9 t ADT: 37
C.C. Rd
FairOver: EAST BEDICO CREEK
1.33 MILES NORTH OF LA 22, Tangipahoa, LA
Built 2009 Load: 23.9 t ADT: 559
LA1054
FairOver: CREEK
0.4 M NW OF LA 1058, Tangipahoa, LA
Built 1954 Load: 23.9 t ADT: 1,319
LAPALCO BLVD
FairOver: MURPHY CANAL
0.3 MI E OF LA 3017, Jefferson, LA
Built 2010 Load: 24.0 t ADT: 1,974
I0010
FairOver: WILLIAMS BLVD
2.4 MI E OF US 310, Jefferson, LA
Built 1968 Load: 24.0 t ADT: 126,119
I0010
FairOver: WILLIAMS BLVD
3.4 MI W OF LA 3152, Jefferson, LA
Built 1968 Load: 24.0 t ADT: 41,695
VETERANS BLVD WB
FairOver: BONNABEL CANAL
0.5 MI. E OF CAUSEWA, Jefferson, LA
Built 1960 Load: 24.0 t ADT: 18,150
WATERPROOF BRIDGE
FairOver: BLACK BAYOU
LA 182 SOUTHDOWN-MANDALAY, Terrebonne, LA
Built 2009 Load: 24.0 t ADT: 610
Plantation Blvd.
FairOver: DRAINAGE
.2 MI. E. OF K Saloom Rd, Lafayette, LA
Built 1987 Load: 24.0 t ADT: 592
Rodessa St Line Rd
FairOver: BLACK BAYOU
.88 MI. EAST OF TEXAS STA, Caddo, LA
Built 1982 Load: 24.0 t ADT: 260
Rodessa St Line Rd
FairOver: STATE LINE CREEK
1.29 MI. EAST OF TEXAS ST, Caddo, LA
Built 1982 Load: 24.0 t ADT: 260
LA0169
FairOver: DRAIN
7.29 MI SOUTH OF LA 538, Caddo, LA
Built 1978 Load: 24.0 t ADT: 1,085
LA0191
FairOver: ROCKY BRANCH
.22 MI NORTH OF LA 763, De Soto, LA
Built 1958 Load: 24.0 t ADT: 1,093
LA0191
FairOver: DRAIN
.09 MI NORTH OF LA 481, De Soto, LA
Built 1960 Load: 24.0 t ADT: 769
LA0157
FairOver: CREEK
.66 MI EAST OF US 371, Webster, LA
Built 1977 Load: 24.0 t ADT: 4,049
LA0160
FairOver: DRY CREEK
.3 MI EAST OF LA 3014, Webster, LA
Built 1957 Load: 24.0 t ADT: 421
Montgomery Xing
FairOver: TRIB TO PRAIRIE BAYOU
0.8 MI W OF HWY 163, Webster, LA
Built 1959 Load: 24.0 t ADT: 281
West St
FairOver: TRIBUTARY TO MILE CREEK
0.3 MI W OF HWY 79-8, Webster, LA
Built 1930 Load: 24.0 t ADT: 4,200
SONDHEIMER LOOP RD
FairOver: FROG CREEK
3.1 MI S of LA 580, East Carroll, LA
Built 1997 Load: 24.0 t ADT: 150
LA0145
FairOver: SQUIRES CREEK
2.49 MI N of US 80, Lincoln, LA
Built 1982 Load: 24.0 t ADT: 5,661
EVERETT ST
FairOver: KANSAS CITY SOUTHERN
EVERETT SR / RUSTON, Lincoln, LA
Built 1987 Load: 24.0 t ADT: 5,040
US0080
FairOver: TENSAS RIVER
3.0 MI EAST OF LA 577, Madison, LA
Built 1954 Load: 24.0 t ADT: 1,181
US0165
FairOver: LITTLE B GALION
1.02 MI NORTH OF LA 2, Morehouse, LA
Built 1939 Load: 24.0 t ADT: 1,405
GEORGE FRANKLIN RD
FairOver: BAYOU GALION
4.9 MI S & E INT., Morehouse, LA
Built 1997 Load: 24.0 t ADT: 30
LEGGINS RD
FairOver: TURKEY CREEK
0.5 MI NW of US 80, Richland, LA
Built 2007 Load: 24.0 t ADT: 25
POWELL RD
FairOver: BLUE BAYOU
0.9 MI. S. OF CC BELL RD, Allen, LA
Built 2001 Load: 24.0 t ADT: 446
LA0108
FairOver: DRAIN
2.6 MI SOUTH OF I-10, Calcasieu, LA
Built 1961 Load: 24.0 t ADT: 1,259
COMMON ST
FairOver: CONTRABAND BAYOU
0.06 MI N OF LA 3186, Calcasieu, LA
Built 1999 Load: 24.0 t ADT: 17,746
CARTER ROAD
FairOver: GUM GULLY
0.7 M E of LA 395, Jefferson Davis, LA
Built 1987 Load: 24.0 t ADT: 50
FARM SUPPLY ROAD
FairOver: GUM GULLY
3.8 MI. S. OF LA 102, Jefferson Davis, LA
Built 1981 Load: 24.0 t ADT: 80
US0167
FairOver: BAYOU BOEUF
0.9 MI. SOUTH OF US 71, Rapides, LA
Built 1985 Load: 24.0 t ADT: 2,324
LA0547
FairOver: CREEK
3.95 MI W OF LA 126, Caldwell, LA
Built 1982 Load: 24.0 t ADT: 606
LA0778
FairOver: HEMPHILL CREEK
1.7 MI NORTH OF US 84, LaSalle, LA
Built 1966 Load: 24.0 t ADT: 1,622
I0010
FairOver: I-10 OVER LA 44
JCT LA 44 & I-10, Ascension, LA
Built 1979 Load: 24.0 t ADT: 57,444
I0010
FairOver: I-10 OVER LA 44
JCT LA 44 & I-10, Ascension, LA
Built 1979 Load: 24.0 t ADT: 25,735
US0190
FairOver: JONES CREEK
US0190, East Baton Rouge, LA
Built 1958 Load: 24.0 t ADT: 24,923
LA0996
FairOver: GRAND BAYOU
2.7 M N of LA 70, Iberville, LA
Built 1973 Load: 24.0 t ADT: 524
Showing 1,801-1,850 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.