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
Wadesboro Rd
GoodOver: CREEK
3.5 MI SW OF SR 22 EXIT, Tangipahoa, LA
Built 1999 Load: 39.5 t ADT: 585
Doc Hyde Rd
GoodOver: WASHLEY CREEK
3MI NE/LA445 BOBBYHYDE RD, Tangipahoa, LA
Built 1985 Load: 39.5 t ADT: 550
Chappepeela Rd
GoodOver: CHAPPEPEELA RELIEF BRIDG
4.0M NW OF JCT 190 & 445, Tangipahoa, LA
Built 1992 Load: 39.5 t ADT: 1,145
Richardson Rd
GoodOver: MORGAN BRANCH
1.3 MI N/E JCT 1063 & 442, Tangipahoa, LA
Built 2000 Load: 39.5 t ADT: 117
Jules Waller Rd
GoodOver: JENNY BRANCH
JULES WALLER ROAD, Tangipahoa, LA
Built 1999 Load: 39.5 t ADT: 196
LA0028
GoodOver: CALCASIEU RIVER
8.6 MI EAST OF LA 121, Vernon, LA
Built 2011 Load: 39.5 t ADT: 6,952
Lee Rd
GoodOver: THIGPEN CREEK
0.9 MILES NORTH OF LA 16, Washington, LA
Built 2007 Load: 39.5 t ADT: 280
Eve Rd.
GoodOver: WICKOFF BAYOU
0.32 MI. N. OF LA 356, Acadia, LA
Built 2014 Load: 39.7 t ADT: 48
Wikoff Cove Rd
GoodOver: BAYOU WIKOFF
0.38 Mi W of La 95, Acadia, LA
Built 2009 Load: 39.9 t ADT: 80
Connie Rd.
GoodOver: COULEE
0.6 MI W of LA 1120, Acadia, LA
Built 2010 Load: 39.9 t ADT: 480
Meche Rd.
GoodOver: Coulee Duralde
1.2 MILES SOUTH OF LA 98, Acadia, LA
Built 2010 Load: 39.9 t ADT: 528
Deer Rd
GoodOver: Coulee
0.5 Mi West of La 1119, Acadia, LA
Built 2010 Load: 39.9 t ADT: 480
LA0098
GoodOver: CANAL
0.51 MI EAST OF LA 1100, Acadia, LA
Built 2005 Load: 39.9 t ADT: 3,050
Roller Rd.
GoodOver: BAYOU BLANC
0.5 MI S US90, Acadia, LA
Built 2004 Load: 39.9 t ADT: 384
BURNETT TOWN RD
GoodOver: AUSTIN BRANCH
0.7 MI W of B F TOWER RD, Allen, LA
Built 2011 Load: 39.9 t ADT: 64
LA0074
GoodOver: Narcisse Bayou
0.1 Mi E of US 61, Ascension, LA
Built 2022 Load: 39.9 t ADT: 10,765
LA0044
GoodOver: PANAMA CANAL
APPROX. 2.0 MI. SOUTH OF, Ascension, LA
Built 2008 Load: 39.9 t ADT: 13,542
LA0114
GoodOver: Cross Drain
0.5 Mi of W of LA 115, Avoyelles, LA
Built 2021 Load: 39.9 t ADT: 2,890
DEE GILLAND RD
GoodOver: LITTLE CREEK
0.5 MI E OF LA 389, Beauregard, LA
Built 2006 Load: 39.9 t ADT: 12
CLIFFORD COOLEY RD
GoodOver: SPRING BRANCH
0.8 MI E of BEEHIVE LOOP, Beauregard, LA
Built 2006 Load: 39.9 t ADT: 6
GREENTOWN RD
GoodOver: LITTLE DRY CREEK
1.6 MI WEST OF LA 394, Beauregard, LA
Built 2006 Load: 39.9 t ADT: 50
HAUSER RD
GoodOver: LITTLE BARNES CREEK
0.7 MI E. of US 171, Beauregard, LA
Built 2006 Load: 39.9 t ADT: 25
LA0155
GoodOver: SALINE BAYOU
1.85 MI EAST OF LA 9, Bienville, LA
Built 1982 Load: 39.9 t ADT: 1,022
Sparks-Davis Rd
GoodOver: TRIB TO BUCHANAN BAYOU
0.6 MI. S. OF KEITHVILLE-, Caddo, LA
Built 2013 Load: 39.9 t ADT: 37
LA3132
GoodOver: SPRR
0.1 MI. E. OF US 171, Caddo, LA
Built 1979 Load: 39.9 t ADT: 12,192
Fant Parkway NB
GoodOver: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
Fant Parkway SB
GoodOver: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
Fant Parkway NB
GoodOver: BYCYCLE TRAIL
0.5 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
CHOUPIQUE RD
GoodOver: SPRING GULLY
0.6 MI S OF LA 108, Calcasieu, LA
Built 2015 Load: 39.9 t ADT: 500
MAPLEWOOD DRIVE
GoodOver: GUM SLOUGH
0.8 MI EAST OF LA 27, Calcasieu, LA
Built 2020 Load: 39.9 t ADT: 14,781
CONTRABAND PARKWAY
GoodOver: DRAIN
0.1 MI E OF LAUBERGE BLVD, Calcasieu, LA
Built 2017 Load: 39.9 t ADT: 55
LA0027
GoodOver: BUXTON CREEK
2.2 MI S OF LA 12, Calcasieu, LA
Built 1988 Load: 39.9 t ADT: 7,798
LA0506
GoodOver: CREEK
3.3 MI WEST OF US 165, Caldwell, LA
Built 1984 Load: 39.9 t ADT: 306
LA0846
GoodOver: CASTOR CREEK
2.35 MI NORTH OF LA 4, Caldwell, LA
Built 1985 Load: 39.9 t ADT: 205
LA0008
GoodOver: YELLOW BRANCH CREEK
0.29 M E of LA 772, Catahoula, LA
Built 1994 Load: 39.9 t ADT: 1,527
Clarence Ivory Rd
GoodOver: BLACK BAYOU
0.65 MI W. OF LA 534, Claiborne, LA
Built 1998 Load: 39.9 t ADT: 90
I0049
GoodOver: BOIS D'ARC BAYOU
2.71 M N OF LA 177 INTR, De Soto, LA
Built 1988 Load: 39.9 t ADT: 22,806
Antioch Oxford Rd
GoodOver: CHATMAN BAYOU
3.7 MI. S OF LA 175, De Soto, LA
Built 2003 Load: 39.9 t ADT: 75
Main St.
GoodOver: WHITE'S BAYOU
3.7 MILES EAST OF LA.964, East Baton Rouge, LA
Built 1976 Load: 39.9 t ADT: 17,300
I0110
GoodOver: CHIPPEWA ST. ON RAMP (SB
I0110, East Baton Rouge, LA
Built 1970 Load: 39.9 t ADT: 8,250
North Blvd
GoodOver: NORTH BLVD. R.R. OVERPAS
0.2 MI. E. OF I110, East Baton Rouge, LA
Built 2006 Load: 39.9 t
Port Hudson-Pride
GoodOver: DOYLE BAYOU
1.3 M W of LA 67, East Baton Rouge, LA
Built 2006 Load: 39.9 t ADT: 1,037
Bank St
GoodOver: Lewis Creek
1.0 Mi S of LA 10, East Feliciana, LA
Built 2022 Load: 39.9 t ADT: 375
LA0067
GoodOver: WW WOODLAND CREEK
1.2 M NE of LA 432&LA 67, East Feliciana, LA
Built 1978 Load: 39.9 t ADT: 3,320
Red Fox Ln.
GoodOver: COULEE
0.58 Mi E of La 13, Evangeline, LA
Built 2009 Load: 39.9 t ADT: 176
Bayou Toureau Rd.
GoodOver: COULEE
0.38 Mi NW of La 115, Evangeline, LA
Built 2007 Load: 39.9 t ADT: 33
LA0015
GoodOver: LITTLE TURKEY CREEK
1.50 M S of LA 1242, Franklin, LA
Built 1994 Load: 39.9 t ADT: 4,592
LA0015
GoodOver: LITTLE TURKEY CREEK
1.50 M S of LA 1242, Franklin, LA
Built 1994 Load: 39.9 t ADT: 6,896
LA0015
GoodOver: ASH SLOUGH RELIEF
0.25 M N of LA 868, Franklin, LA
Built 1987 Load: 39.9 t ADT: 9,661
LA0015
GoodOver: ASH SLOUGH RELIEF
0.25 M N of LA 868, Franklin, LA
Built 1988 Load: 39.9 t ADT: 6,896
Showing 9,801-9,850 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 |