Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above national median SD
Louisiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Louisiana — drawn straight from the FHWA National Bridge Inventory.
- 12,699
- Public bridges
- 36.2%
- Good condition
- 11.0%
- Poor condition
- 11.0%
- Structurally deficient
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges rated 0-4
Structurally Deficient
11.0%
1,397 bridges flagged for repair priority
4.0pp vs national avg 7.0%
Louisiana vs national bridge condition
Louisiana — Good condition share 36.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana — Structurally deficient share 36.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Louisiana (FHWA NBI)
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 323 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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Louisiana on the same metric.
42
Pennsylvania
10.50% top marginal rate
38
North Dakota
10.84% top marginal rate
22
Louisiana
11.00% top marginal rate
72
Puerto Rico
11.98% top marginal rate
23
Maine
13.23% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
Layton Coco Xing
Structurally DeficientOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1986 Load: 0.9 t ADT: 40
LA1077
Structurally DeficientOver: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Built 1965 Load: 0.9 t ADT: 1,019
LA0308
Structurally DeficientOver: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Built 1970 Load: 1.0 t ADT: 5,198
Ebeneezer Tap Rd
PoorOver: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Built 1989 Load: 1.2 t ADT: 300
Anderson Rd
Structurally DeficientOver: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Built 1960 Load: 1.2 t ADT: 25
Stubblefield Rd
PoorOver: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Built 1975 Load: 2.3 t ADT: 40
All Bridges in Louisiana
Childress Rd
GoodOver: BEAUCOUP CREEK
2M E of LA 506, Caldwell, LA
Built 2011 Load: 32.7 t ADT: 100
LA0126
GoodOver: CREEK
.1 MI N OF LA 851, Caldwell, LA
Built 1999 Load: 32.7 t ADT: 1,092
Hubie Lewis Rd
GoodOver: BOND CREEK
1.3 MI. N OF LA 161, Claiborne, LA
Built 2007 Load: 32.7 t ADT: 150
US0084
GoodOver: CROSS BAYOU
2.6 MI EAST OF LA 566, Concordia, LA
Built 1977 Load: 32.7 t ADT: 6,163
LA0175
GoodOver: KCS RAILROAD
3.20MI N OF LA 3015, De Soto, LA
Built 2019 Load: 32.7 t ADT: 4,145
US0084
GoodOver: SABINE RIVER
THE LA TEX STATE LINE ON, De Soto, LA
Built 2016 Load: 32.7 t ADT: 6,314
US0084
GoodOver: SABINE RIVER
LA-TEX STATELINE ON US 84, De Soto, LA
Built 2017 Load: 32.7 t ADT: 9,752
I0049
GoodOver: DOLET SWAMP
1.08 M N OF LA 177 INTR, De Soto, LA
Built 1989 Load: 32.7 t ADT: 28,142
I0010
GoodOver: WASH.ST. ON RAMP
I0010, East Baton Rouge, LA
Built 1963 Load: 32.7 t ADT: 8,250
Corporate Blvd
GoodOver: WARDS CREEK
.20 MILES E. COLLEGE DR., East Baton Rouge, LA
Built 1985 Load: 32.7 t ADT: 23,372
Alexander Ave
GoodOver: MONTE SANO BAYOU
0.7 M W of LA 67, East Baton Rouge, LA
Built 1985 Load: 32.7 t ADT: 200
LA0134
GoodOver: BAYOU MACON
0.1 MILE WEST OF LA 577, East Carroll, LA
Built 2014 Load: 32.7 t ADT: 759
LA0582
GoodOver: BAYOU MACON
6.92 MI WEST OF LA 134, East Carroll, LA
Built 1983 Load: 32.7 t ADT: 593
LA0068
GoodOver: CARNEY CREEK
0.4 Mi. N of LA 963, East Feliciana, LA
Built 2011 Load: 32.7 t ADT: 680
US0061
GoodOver: SANDY CREEK
US 61, East Feliciana, LA
Built 1982 Load: 32.7 t ADT: 2,531
4J Rd.
GoodOver: PETITE PASSE BAYOU
1.17 Mi N of La 363, Evangeline, LA
Built 1985 Load: 32.7 t ADT: 32
Burke Rd
GoodOver: BULLS BAYOU
LOG MI. 0.30 FROM 645 TO, Franklin, LA
Built 2010 Load: 32.7 t ADT: 25
Union Church Rd
GoodOver: TURKEY CREEK
4.53 MI. W OF LA 132, Franklin, LA
Built 2004 Load: 32.7 t ADT: 500
Robertson Rd
GoodOver: KITCHEN CREEK
1.0 MILES W US 165, Grant, LA
Built 2009 Load: 32.7 t ADT: 175
Meade Rd
GoodOver: WALDEN BAYOU
2.53 MI. SOUTH OF US 71, Grant, LA
Built 2008 Load: 32.7 t ADT: 100
LA0146
GoodOver: POPLAR BRANCH
1.5 MILES SOUTH OF LA 155, Jackson, LA
Built 2013 Load: 32.7 t ADT: 882
LA0146
GoodOver: FOUR MILE CREEK
13.02 MI E LINCOLN PAR LN, Jackson, LA
Built 2013 Load: 32.7 t ADT: 882
LA0146
GoodOver: STUD HORSE CREEK
0.3 MILES SOUTH OF LA 148, Jackson, LA
Built 2013 Load: 32.7 t ADT: 882
LA0004
GoodOver: CANEY CREEK
8.67 MI E of US 167, Jackson, LA
Built 1982 Load: 32.7 t ADT: 2,992
VINTAGE DRIVE
GoodOver: DUNCAN CANAL
0.5 MI W OF LA 49, Jefferson, LA
Built 2005 Load: 32.7 t ADT: 2,000
I0010
GoodOver: OAKLAWN DRIVE
6.6 MI EAST OF LA 49, Jefferson, LA
Built 1966 Load: 32.7 t ADT: 80,773
I0010
GoodOver: OAKLAWN DRIVE
6.6 MI EAST OF LA 49, Jefferson, LA
Built 1966 Load: 32.7 t ADT: 41,695
LAPALCO BLVD
GoodOver: MAIN CANAL
0.6 MILE FROM SEGNETTE BL, Jefferson, LA
Built 2007 Load: 32.7 t
LEBLANC RD
GoodOver: COULEE
1.1 MI. W. OF US 167, Lafayette, LA
Built 2018 Load: 32.7 t ADT: 1,153
Walker Rd
GoodOver: MINE BRANCH COULEE
0.1 MI. E. Orchid Dr., Lafayette, LA
Built 1973 Load: 32.7 t ADT: 2,040
Pleasant Ridge Rd
GoodOver: PLEASANT RIDGE
LOG MI 3.63 FR 636 TO 638, LaSalle, LA
Built 2010 Load: 32.7 t ADT: 75
US0084
GoodOver: BAYOU FUNNY LOUIS
3.0 MI EAST OF LA 3159, LaSalle, LA
Built 1983 Load: 32.7 t ADT: 1,675
LA0125
GoodOver: CHICKASAW CREEK
2.3 MI NORTH OF US 84, LaSalle, LA
Built 1981 Load: 32.7 t ADT: 156
LA0460
GoodOver: HEMPHILL CREEK
0.60 M E of LA 127, LaSalle, LA
Built 1988 Load: 32.7 t ADT: 776
LA0442
GoodOver: E HOG BRANCH
LA0442, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
LA0442
GoodOver: CANEY BRANCH
0.3 M W OF LA 441, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
GRAVEL PIT ROAD
GoodOver: BAYOU DRAIN DITCH
Sec 23 T 22N R 4E, Morehouse, LA
Built 2012 Load: 32.7 t ADT: 10
Russell Cemetary
GoodOver: BAYOU DERBONNE
0.03 MI. W OF B. DERBONNE, Natchitoches, LA
Built 2013 Load: 32.7 t ADT: 72
I0010
GoodOver: LAKE PONCHARTRAIN
0.5 MI NE OF LA 11, Orleans, LA
Built 2011 Load: 32.7 t ADT: 87,741
I0010
GoodOver: LAKE PONCHARTRAIN
3.1 MI SW OF LA 433, Orleans, LA
Built 2011 Load: 32.7 t ADT: 1,600
US0090-B
GoodOver: CITY STREETS
1.29 MI SOUTH OF I-10, Orleans, LA
Built 1994 Load: 32.7 t ADT: 67,143
US0090
GoodOver: ON RAMP
1.94 MI SOUTH OF MISS. RI, Orleans, LA
Built 1989 Load: 32.7 t ADT: 7,620
I0510
GoodOver: RAILROAD
0.10 MI. SOUTH OF US-90, Orleans, LA
Built 1993 Load: 32.7 t ADT: 7,620
I0010
GoodOver: CITY STREETS
.2 MI EAST OF US 90, Orleans, LA
Built 1960 Load: 32.7 t ADT: 7,620
LA0546
GoodOver: ICG RAILROAD
3.8 MI. N. of LA 838, Ouachita, LA
Built 2000 Load: 32.7 t ADT: 6,382
STUBBS-VINSON RD
GoodOver: PATRICK BAYOU
2.1 MI N of US 80 E, Ouachita, LA
Built 2004 Load: 32.7 t ADT: 1,100
US0071
GoodOver: KCS RAILROAD
2.3 MI. N. OF I-49, Rapides, LA
Built 2013 Load: 32.7 t ADT: 10,090
LA0113
GoodOver: CALCASIEU RIVER RELIEF
3.81 MI. E OF INT LA112, Rapides, LA
Built 1981 Load: 32.7 t ADT: 2,071
I0049
GoodOver: UP RAILROAD
1.54 MI. NORTH OF LA 3250, Rapides, LA
Built 1994 Load: 32.7 t ADT: 20,561
Barron Rd.
GoodOver: Middle Creek
0.3 Mi N of Herrington Rd, Sabine, LA
Built 2024 Load: 32.7 t ADT: 50
Showing 8,651-8,700 of 12,699 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |