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
POWER BLVD
GoodOver: CANAL NO 1
0.3 M N OF W ESPLANADE, Jefferson, LA
Built 1989 Load: 44.1 t ADT: 14,025
JEFFERSON AVE
GoodOver: CHATAUQUA CREEK
0.5 MI W OF US 167, Lincoln, LA
Built 2019 Load: 44.1 t ADT: 1,850
Whittington Rd.
GoodOver: Grays Creek
0.05 Mi. E of LA 16, Livingston, LA
Built 2020 Load: 44.1 t ADT: 150
I0012
GoodOver: AMITE RIVER
2 MILES WEST OF LA 3002, Livingston, LA
Built 2011 Load: 44.1 t ADT: 55,700
Good Hope Rd
GoodOver: Drain
4.0 Mi. W of I-49, Natchitoches, LA
Built 2020 Load: 44.1 t ADT: 20
Park Island Dr.
GoodOver: BAYOU ST. JOHN
0.1 MILE WEST OF ST BERNA, Orleans, LA
Built 2011 Load: 44.1 t
Frontage Rd
GoodOver: Bennet Bayou
1.29 Mi. E. of Jct US 165, Ouachita, LA
Built 2022 Load: 44.1 t ADT: 25
H. STRANGE RD
GoodOver: INDIAN CREEK RESERVOIR
2.37 MI NW OF LA 112, Rapides, LA
Built 2021 Load: 44.1 t ADT: 825
PALMER CHAPEL ROAD
GoodOver: WIGGINS BAYOU
0.6 MI E OF LA 107, Rapides, LA
Built 2021 Load: 44.1 t ADT: 1,400
LA0358
GoodOver: BAYOU PLAQUEMINE BRULE
1.0 MI EAST OF LA 35, St. Landry, LA
Built 2004 Load: 44.1 t ADT: 446
Cypress Creek Rd
GoodOver: Boatwright Creek
1.7 Mi S. of LA 15, Union, LA
Built 2020 Load: 44.1 t ADT: 25
LA0028
GoodOver: FLOCTAW CREEK
4.99 MI. WEST OF LA 465, Vernon, LA
Built 2011 Load: 44.1 t ADT: 6,952
LA0450
GoodOver: DRAIN
4 MI. N OF PAR LINE/LA450, Washington, LA
Built 2006 Load: 44.1 t ADT: 1,822
LA0430
GoodOver: CREEK
0.8 MI. N OF JCT LA 1069, Washington, LA
Built 2006 Load: 44.1 t ADT: 4,643
LA0062
GoodOver: CREEK
0.15 MI N OF JCT LA 10, Washington, LA
Built 2002 Load: 44.1 t ADT: 2,270
LA0424
GoodOver: CRYSTAL CREEK
5 MI NORTH JCT 434 & 438, Washington, LA
Built 2000 Load: 44.1 t ADT: 1,873
Dorcheat Rd.
GoodOver: Caney Creek
4.75 Mi. N of US 79/80, Webster, LA
Built 2023 Load: 44.1 t ADT: 1,025
Roundhill Rd.
GoodOver: Little Colewa Bayou
0.3 Mi. W. of LA 2, West Carroll, LA
Built 2022 Load: 44.1 t ADT: 400
Roy Rd
GoodOver: COULEE
0.8 Mi. N. of La 1115, Acadia, LA
Built 1993 Load: 44.4 t ADT: 12
S. LeBlanc St.
GoodOver: COULEE
0.5 Mi. S. of La 92, Acadia, LA
Built 1994 Load: 44.4 t ADT: 624
Phillips Rd
GoodOver: GULLY
1.63 Mi. N. of La 367, Acadia, LA
Built 1993 Load: 44.4 t ADT: 96
FieldingWilliamsRd
GoodOver: Cole Creek
0.8 Mi W of LA 27, Beauregard, LA
Built 2017 Load: 44.4 t ADT: 10
BEEHIVE LOOP ROAD
GoodOver: BECKWITH CREEK RELIEF
1 MI NE OF LA 110, Beauregard, LA
Built 2017 Load: 44.4 t ADT: 90
PARISH LINE RD
GoodOver: FLAT CREEK
0.7 MI N of AMPACET DR., Beauregard, LA
Built 2014 Load: 44.4 t ADT: 590
Castor Creek Rd
GoodOver: CASTOR CREEK
0.34 MI. S. OF LA 507, Bienville, LA
Built 2017 Load: 44.4 t ADT: 200
PROVIDENCE ROAD
GoodOver: BOGGY BAYOU
0.6 MI S OF LA 169, Caddo, LA
Built 2019 Load: 44.4 t ADT: 120
BLANCHARD-LATEX RD
GoodOver: TRIB. TO PINEY BAYOU
1.9 MI W OF LA 169, Caddo, LA
Built 2017 Load: 44.4 t ADT: 40
BLANCHARD-FURRH RD
GoodOver: PINEY BAYOU
0.66 MI WEST OF LA 169, Caddo, LA
Built 2017 Load: 44.4 t ADT: 100
BLANCHARD-FURRH RD
GoodOver: SHETTLEWORTH BAYOU
2.5 MI. E. OF LA 169, Caddo, LA
Built 2017 Load: 44.4 t ADT: 100
MAYO ROAD
GoodOver: TRIB. TO BOGGY BAYOU
2.4 MI SE OF LA 526, Caddo, LA
Built 2021 Load: 44.4 t ADT: 39
STANDARD OIL ROAD
GoodOver: TYSON BRANCH
0.75 MI EAST OF LA 1, Caddo, LA
Built 2022 Load: 44.4 t ADT: 40
Blanchard-Latex
GoodOver: E. Settleworth By.
1.5 Mi. E of LA 169, Caddo, LA
Built 2023 Load: 44.4 t ADT: 59
SOUTH BROOKWOOD
GoodOver: BROOKWOOD DITCH
1.0 MILE EAST OF US 171, Caddo, LA
Built 2010 Load: 44.4 t ADT: 826
I0210
GoodOver: CLINE CANAL
0.05 MILES NORTH OF I-210, Calcasieu, LA
Built 2015 Load: 44.4 t ADT: 10,981
I0210
GoodOver: CLINE CANAL
0.05 MILES NORTH OF I-210, Calcasieu, LA
Built 2015 Load: 44.4 t ADT: 9,810
WAKEFIELD RD.
GoodOver: JOHNSON BAYOU
.5 MI N of LA 82, Cameron, LA
Built 2011 Load: 44.4 t ADT: 12
I0010
GoodOver: Julia St
0.25 Mi S of I-110, East Baton Rouge, LA
Built 2019 Load: 44.4 t ADT: 8,250
Estis Rd.
GoodOver: Channel L3H
0.3 MI S of US 90 Serv Rd, Iberia, LA
Built 2014 Load: 44.4 t ADT: 444
BULL ISLAND RD
GoodOver: NORRIS BRANCH CANAL
1.04 MI. W. OF LA 3013, Iberia, LA
Built 2018 Load: 44.4 t ADT: 331
Briarwood Dr
GoodOver: Commercial Canal
1.2 mi. NE of US 90, Iberia, LA
Built 2018 Load: 44.4 t ADT: 311
Railroad Rd
GoodOver: Poufette Canal
1 MI W of Lee Station Rd, Iberia, LA
Built 2018 Load: 44.4 t ADT: 223
Back Rd
GoodOver: Delahossaye Canal
0.02 Mi W of LA 668, Iberia, LA
Built 2018 Load: 44.4 t ADT: 85
VETERANS BLVD
GoodOver: CANAL 17
0.1 MI. S OF I-10, Jefferson, LA
Built 2015 Load: 44.4 t
LIVE OAK BLVD
GoodOver: SAUL'S CANAL
2.7 M NW OF US 90, Jefferson, LA
Built 1988 Load: 44.4 t ADT: 2,000
32nd St
GoodOver: DUNCAN CANAL
0.5 MI W OF WILLIAMS BLVD, Jefferson, LA
Built 1985 Load: 44.4 t
Harwell Dr.
GoodOver: DRAINAGE
.2 MI NE of Grande Ave, Lafayette, LA
Built 1987 Load: 44.4 t ADT: 1,162
Wax Rd
GoodOver: GRAY'S CREEK
0.60 MILES WEST OF LA.102, Livingston, LA
Built 2015 Load: 44.4 t ADT: 200
Old River Road
GoodOver: Bayou
.75 miles NE of La. 22, Livingston, LA
Built 2017 Load: 44.4 t ADT: 350
SOUTH SATSUMA
GoodOver: HORNSBY CREEK
0.50 MI. NORTH OF I-12, Livingston, LA
Built 2018 Load: 44.4 t ADT: 2,000
GENTILLY BLVD.
GoodOver: LONDON AVENUE CANAL
0.08 MI E OF HAVANA ST, Orleans, LA
Built 2001 Load: 44.4 t
Showing 10,551-10,600 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 |