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
Durand Rd
GoodOver: SPRING CREEK
0.39 MI. SOUTH OF LA 112, Rapides, LA
Built 2015 Load: 31.1 t ADT: 100
Ten Mile Rd
GoodOver: TEN MILE CREEK
0.40 MILE WEST OF LA 462, Rapides, LA
Built 1991 Load: 31.1 t ADT: 280
Richmond Rd
GoodOver: MILL CREEK
1.23 M. NE OF MELDER ROAD, Rapides, LA
Built 2005 Load: 31.1 t ADT: 95
Forestry Rd
GoodOver: INDIAN CREEK
2.31 MI. SE OF LA 3265, Rapides, LA
Built 2001 Load: 31.1 t ADT: 250
Austin St
GoodOver: COBURN CREEK
.1 MI. N OF LA 10, Washington, LA
Built 1999 Load: 31.1 t ADT: 920
Buddy Taylor
GoodOver: IATT CREEK
1.2 M. S. OF END LA 1228, Winn, LA
Built 2003 Load: 31.1 t ADT: 55
Roddy Rd
GoodOver: BLACK BAYOU
1.3 MI NE LA 441 US 61JCT, Ascension, LA
Built 1984 Load: 31.4 t ADT: 500
Hamburg Crossing
GoodOver: BAYOU DES GLAISES
0.18 MILES EAST OF LA 451, Avoyelles, LA
Built 2015 Load: 31.4 t ADT: 100
Beauregard Rd
GoodOver: BAYOU CHOUPIQUE
0.94 MI. EAST OF LEVEE RD, Avoyelles, LA
Built 1994 Load: 31.4 t ADT: 150
LA3049
GoodOver: CREEK
5.7 MI S OF LA 173, Caddo, LA
Built 2020 Load: 31.4 t ADT: 399
WILLIS STREET
GoodOver: MARTIN L KING DR DITCH
0.11 MI WEST OF LINEAR ST, Caddo, LA
Built 1996 Load: 31.4 t ADT: 161
LA0042
GoodOver: OLD WARDS CREEK
0.3 MILES WEST OF US 61 A, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 12,019
LA0042
GoodOver: OLD WARDS CREEK
0.3 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 8,250
LA0042
GoodOver: DIVERSION CANAL
0.5 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 12,019
LA0042
GoodOver: DIVERSION CANAL
0.5 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 8,250
Camp Hardtner Rd
GoodOver: Fish Creek
5.54 M. S. OF JCT. US 165, Grant, LA
Built 2011 Load: 31.4 t ADT: 100
26TH ST
GoodOver: CA-BUTLER CANAL #17
0.15 MI W OF SHARON ST, Jefferson, LA
Built 2010 Load: 31.4 t
AMES BLVD
GoodOver: EIGHTY ARPENT CANAL
0.6M SOUTH OF LAPALCO, Jefferson, LA
Built 1992 Load: 31.4 t ADT: 15,000
US0165
GoodOver: BAYOU SERPENT
3.8 MI S of LA 3086, Jefferson Davis, LA
Built 2008 Load: 31.4 t ADT: 8,453
OLE COLONY RD
GoodOver: COULEE
0.2 MI W. OF LA 3073, Lafayette, LA
Built 2014 Load: 31.4 t ADT: 1,929
ST JOHN BRIDGE
GoodOver: BAYOU LAFOURCHE
0.01 MI S. OF LA 308, Lafourche, LA
Built 2006 Load: 31.4 t ADT: 2,824
Choctaw Rd
GoodOver: LEGENDRE CANAL
0.85 M WEST OF LA 20, Lafourche, LA
Built 1991 Load: 31.4 t ADT: 1,206
US0167
GoodOver: BAYOU D'ARBONNE RELIEF
11.29 MI N of US 80, Lincoln, LA
Built 2009 Load: 31.4 t ADT: 422
EAGLE ST
GoodOver: METAIRIE RELIEF CANAL
0.04 MI NE OF STROELITZ S, Orleans, LA
Built 1990 Load: 31.4 t ADT: 1,000
PARISH ROUTE 18
GoodOver: CHARENTON FLOODGATE
CHARENTON LEVEE, St. Mary, LA
Built 1951 Load: 31.4 t ADT: 100
Wagon Rd.
GoodOver: GRAND COULEE
0.5 MI E of Pamela Drive, Acadia, LA
Built 1986 Load: 31.8 t ADT: 8
Churchpoint Rd
GoodOver: BAYOU NARCISSE
1.6 MI. E LA44, US61 JCT., Ascension, LA
Built 2000 Load: 31.8 t ADT: 1,200
PLANTATION DRIVE
GoodOver: DRAIN
1.05 MI NE OF LA 3105, Bossier, LA
Built 2016 Load: 31.8 t ADT: 200
Caplis Sligo Rd
GoodOver: Flat River
0.7 MI NE OF US 71, Bossier, LA
Built 2014 Load: 31.8 t ADT: 1,000
LA3132
GoodOver: LA 3132, WALKER ROAD
2.7 MI. E. OF LA 511, Caddo, LA
Built 1990 Load: 31.8 t ADT: 53,886
LA3132
GoodOver: LA 3132, WALKER ROAD
1.5 MI. W. OF US 171, Caddo, LA
Built 1990 Load: 31.8 t ADT: 23,520
MCCOWN RD
GoodOver: SABINE CANAL
0.2 MI E of S THOMPSON RD, Calcasieu, LA
Built 2011 Load: 31.8 t ADT: 19
LA0002
GoodOver: BEAVER BRANCH&CYPRESS CR
3.05 MI EAST OF US 79, Claiborne, LA
Built 1981 Load: 31.8 t ADT: 2,020
Old Arcadia Rd
GoodOver: TRIBUTARY TO BEAR CREEK
4.2 MI SOUTH OF LA 518, Claiborne, LA
Built 1996 Load: 31.8 t ADT: 180
Old Arcadia Rd
GoodOver: TRIBUTARY TO BEAR CREEK
4.1 MI SOUTH OF LA 518, Claiborne, LA
Built 1996 Load: 31.8 t ADT: 170
Old Arcadia Rd
GoodOver: BEAR CREEK
3.9 MI SOUTH OF LA 518, Claiborne, LA
Built 1996 Load: 31.8 t ADT: 170
Oakley Cemetery Rd
GoodOver: DEER CREEK
LOGMI 0.81 FR 076 TO 077, Franklin, LA
Built 2006 Load: 31.8 t ADT: 50
Mark Franks Rd
GoodOver: LIL TURKEY CREEK CUTOFF
1.01 M. N OF ERNEST RD., Franklin, LA
Built 2006 Load: 31.8 t ADT: 100
US0165
GoodOver: LITTLE CREEK
1.15 MI. NORTH OF LA 123, Grant, LA
Built 2007 Load: 31.8 t ADT: 1,898
US0165
GoodOver: INDIAN CREEK
4.63 MI. NORTH OF LA 123, Grant, LA
Built 2007 Load: 31.8 t ADT: 7,084
US0165
GoodOver: BEAR CREEK
5.66 MI. NORTH OF LA 123, Grant, LA
Built 2007 Load: 31.8 t ADT: 7,084
US0090
GoodOver: SEGURA BRANCH CANAL
3.0 MI SE of LA 88, Iberia, LA
Built 2009 Load: 31.8 t ADT: 1,755
US0090
GoodOver: SEGURA BRANCH CANAL
3.10 Mi SE of LA 88, Iberia, LA
Built 2009 Load: 31.8 t ADT: 1,755
Bayou Rd
GoodOver: MARINGOUIN BAYOU
JCT LA 76 S MARINGOUIN, Iberville, LA
Built 1984 Load: 31.8 t ADT: 560
LA0004
GoodOver: CREEK
8.08MILES EAST OF JCT LA, Jackson, LA
Built 2009 Load: 31.8 t ADT: 338
US0090
GoodOver: DRAIN CANAL
2.8 MI WEST OF US 90B, Jefferson, LA
Built 1953 Load: 31.8 t ADT: 49,920
LA3139
GoodOver: RR., CA.
2.1 MI EAST OF LA 3152, Jefferson, LA
Built 1983 Load: 31.8 t ADT: 34,781
LA3139
GoodOver: ST., R/R
2.6 MI EAST OF LA 3152, Jefferson, LA
Built 1982 Load: 31.8 t ADT: 55,872
LA3139
GoodOver: STS., R/R
2.6 MI EAST OF LA 3152, Jefferson, LA
Built 1982 Load: 31.8 t ADT: 37,914
I0010
GoodOver: BONNABEL BLVD.
6.0 MI EAST OF LA 49, Jefferson, LA
Built 1966 Load: 31.8 t ADT: 41,695
Showing 7,751-7,800 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 |