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
Roy Rd
GoodOver: TRIBUTARY TO MCCAIN CREE
0.3 MI. S. OF LA 538, Caddo, LA
Built 2015 Load: 72.6 t ADT: 37
LA0028
GoodOver: DRAIN
0.91 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 73.2 t ADT: 9,482
Dulles Dr.
GoodOver: Coulee
0.1 MI E of LA 93, Lafayette, LA
Built 2022 Load: 73.5 t ADT: 1,228
LA1064
GoodOver: Little Natalbany River
0.3 Mi. E. of La 43, Livingston, LA
Built 2019 Load: 73.5 t ADT: 2,854
HERMITAGE RD
GoodOver: HERMITAGE BAYOU
5.05 MI. W. OF LA 23, Plaquemines, LA
Built 2013 Load: 73.9 t
LA0008
GoodOver: CREEK
6.32 MI. EAST OF LA 119, Rapides, LA
Built 1995 Load: 73.9 t ADT: 1,226
NORTH EAGLE DR.
GoodOver: DRAIN CANAL
0.25 MI. S. OF BAYOU GARD, Terrebonne, LA
Built 1980 Load: 73.9 t ADT: 156
Riceland Rd
GoodOver: Coulee
1.0 Mi. W. of La 95, Acadia, LA
Built 2012 Load: 74.5 t ADT: 32
LA0098
GoodOver: CREEK
0.4 MI W of LA 91, Acadia, LA
Built 1963 Load: 74.5 t ADT: 1,922
LA0100
GoodOver: DRAINAGE CANAL
0.86 MI W of LA 91, Acadia, LA
Built 1997 Load: 74.5 t ADT: 1,128
LA0098
GoodOver: CREEK
0.3 MI W of LA 1100, Acadia, LA
Built 1962 Load: 74.5 t ADT: 3,050
LA0095
GoodOver: CREEK
0.5 MI S of LA 1098, Acadia, LA
Built 1963 Load: 74.5 t ADT: 5,166
Goodrich Rd
GoodOver: CANAL
0.7 MI W of LA 3070, Acadia, LA
Built 1984 Load: 74.5 t ADT: 192
Thevis Rd.
GoodOver: Long Point Gully
0.3 Mi. W. of La 13, Acadia, LA
Built 1986 Load: 74.5 t ADT: 32
MENONNITE RD
GoodOver: BARNES CREEK RELIEF
0.8 MI E OF S MENNONITE R, Beauregard, LA
Built 1996 Load: 74.5 t ADT: 420
US0080
GoodOver: CREEK
4.33 MI EAST OF LA 154, Bienville, LA
Built 1995 Load: 74.5 t ADT: 2,140
Speedway Drive
GoodOver: TRIB. TO CROSS BAYOU
0.2 MILES EAST OF LA 169, Caddo, LA
Built 2008 Load: 74.5 t ADT: 25
I0049
GoodOver: MCCAIN CREEK TRIB
3.52 MI S OF LA 1, Caddo, LA
Built 2016 Load: 74.5 t ADT: 51,551
I0049
GoodOver: TRIB. TO MCCAIN CREEK
.52 MI N. OF LA 3194, Caddo, LA
Built 2016 Load: 74.5 t ADT: 87,567
I0049
GoodOver: DOE SLOUGH CANAL
1.0 MI SOUTH OF LA 173, Caddo, LA
Built 2013 Load: 74.5 t ADT: 42,454
I0049
GoodOver: HARTMAN BRANCH
0.92 MI S. OF LA 168, Caddo, LA
Built 2014 Load: 74.5 t ADT: 53,023
LA0169
GoodOver: BAYOU
2.25 MI WEST JCT US 71, Caddo, LA
Built 1981 Load: 74.5 t ADT: 311
SUNNYBROOK ST.
GoodOver: BRUSHY BAYOU
0.2 MI W OF LA 171, Caddo, LA
Built 1956 Load: 74.5 t ADT: 1,200
Mooringsport-Latex
GoodOver: MILLER BRANCH
0.43 MI E OF TEXAS LINE, Caddo, LA
Built 1999 Load: 74.5 t ADT: 43
Riverview Ranch Rd
GoodOver: CREEK
1.07M E of La 846, Caldwell, LA
Built 1986 Load: 74.5 t ADT: 50
Daw Rd
GoodOver: SIPHORIEN BAYOU
1.8 MI. NORTH OF LA 509, De Soto, LA
Built 2007 Load: 74.5 t ADT: 200
US 61
GoodOver: Comite Diversion Canal
2.5 Mi. N of LA 964, East Baton Rouge, LA
Built 2022 Load: 74.5 t ADT: 16,910
US 61
GoodOver: Comite Diversion Canal
2.0 Mi. S of LA 64, East Baton Rouge, LA
Built 2022 Load: 74.5 t ADT: 9,721
Folly Brown Rd
GoodOver: TRIBUTARY TO SPRING CREE
1.22 MI. N OF LA 10, East Feliciana, LA
Built 2006 Load: 74.5 t ADT: 110
LA0013
GoodOver: BAYOU
3.67M NORTH OF LA 10, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 6,976
LA0013
GoodOver: BAYOU CARPE
10.13 MI NORTH OF LA 10, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 6,976
LA0013
GoodOver: DRAINAGE
0.6 MILES SOUTH OF US 167, Evangeline, LA
Built 1994 Load: 74.5 t ADT: 2,152
Brangus Rd
GoodOver: COULEE
1.0 Mi S of La 104, Evangeline, LA
Built 1993 Load: 74.5 t ADT: 30
LA0128
GoodOver: CREEK
1.0 MI E of LA 4, Franklin, LA
Built 1997 Load: 74.5 t ADT: 1,059
LA0128
GoodOver: MUDDY BAYOU BRIDGE
1.20 M W of LA 4, Franklin, LA
Built 1996 Load: 74.5 t ADT: 906
Johnson Rd
GoodOver: CREEK
1.8 MI S OF LA 562, Franklin, LA
Built 1998 Load: 74.5 t ADT: 25
Air Base Rd
GoodOver: CREEK
0.25 MI. EAST OF US 167, Grant, LA
Built 2005 Load: 74.5 t ADT: 138
Air Base Rd
GoodOver: CREEK
.42 MILES EAST OF US 167, Grant, LA
Built 2005 Load: 74.5 t ADT: 138
Nelms Loop Rd
GoodOver: DRY BRANCH
.87 MILES E US 71, Grant, LA
Built 2009 Load: 74.5 t ADT: 200
LA0122
GoodOver: DRAIN
10.9 M E OF E JCT LA 471, Grant, LA
Built 1999 Load: 74.5 t ADT: 683
Rob Wallace Rd
GoodOver: CREEK
0.64 MI. NORTH OF LA 8, Grant, LA
Built 1993 Load: 74.5 t ADT: 50
River Rd
GoodOver: UNNAMED CREEK
2.21 MI. WEST OF US 71, Grant, LA
Built 2003 Load: 74.5 t ADT: 100
LA0087
GoodOver: BAYOU TECHE
0.2 MI N of LA 182, Iberia, LA
Built 2008 Load: 74.5 t ADT: 18,440
LA0034
GoodOver: BULLARD CREEK
4.8 MI E of LA 4, Jackson, LA
Built 2002 Load: 74.5 t ADT: 2,877
LA3139
GoodOver: DRAIN CANAL
1.5 MILES SOUTH OF US 61, Jefferson, LA
Built 1986 Load: 74.5 t ADT: 55,872
ALLO St
GoodOver: PATRIOT CANAL
0.5 MI E OF LA 45, Jefferson, LA
Built 2015 Load: 74.5 t ADT: 60
LA3154
GoodOver: DRAIN
3.0 MI NORTH OF LA 48, Jefferson, LA
Built 1956 Load: 74.5 t ADT: 29,942
LA3135
GoodOver: LITTLE FARMS DRAIN CANAL
0.04 MI N OF MISTLETOE ST, Jefferson, LA
Built 1982 Load: 74.5 t ADT: 8,125
MANHATTAN BLVD
GoodOver: THREE MILE CANAL
0.6 MI N OF LAPALCO BLVD, Jefferson, LA
Built 1964 Load: 74.5 t ADT: 2,000
ESPLANADE U-TURN
GoodOver: CANAL #2
3.5 MI E OF CAUSEWAY BLVD, Jefferson, LA
Built 1970 Load: 74.5 t
Showing 11,151-11,200 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 |