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
Air Base Rd
GoodOver: FLAGON CREEK
.29 MILE EAST OF US 167, Grant, LA
Built 2005 Load: 32.4 t ADT: 138
US0071
GoodOver: CREEK
2.4 MI SOUTH OF LA 1241, Grant, LA
Built 1969 Load: 32.4 t ADT: 2,063
US0165
GoodOver: CREEK
1.37 MI NORTH OF LA 3130, Grant, LA
Built 1986 Load: 32.4 t ADT: 6,586
US0165
GoodOver: SUGAR BRANCH
.32 MI NORTH OF LA 8, Grant, LA
Built 1956 Load: 32.4 t ADT: 6,586
US0165
GoodOver: CREEK
2.35 MI. SOUTH OF LA 123, Grant, LA
Built 1948 Load: 32.4 t ADT: 6,586
LA0008
GoodOver: CHANDLER-CREEK
3.78 MI. EAST OF LA 123, Grant, LA
Built 1975 Load: 32.4 t ADT: 2,537
LA0472
GoodOver: CREEK
6.03 MI EAST OF US 167, Grant, LA
Built 1960 Load: 32.4 t ADT: 88
Flagon Creek Rd
GoodOver: FLAGON BAYOU
0.43 M. E. OF JCT US 167, Grant, LA
Built 1986 Load: 32.4 t ADT: 53
Ed Coleman Rd.
GoodOver: COLEMAN CREEK
0.84 M. W. OF JCT ROCK HI, Grant, LA
Built 1997 Load: 32.4 t ADT: 280
Parsonage Rd.
GoodOver: CHANDLER CREEK
4.88 M. NE OF JCT US 167, Grant, LA
Built 1986 Load: 32.4 t ADT: 57
Hughart Rd
GoodOver: HAW CREEK
1.25 M. NW OF LA 8, Grant, LA
Built 1993 Load: 32.4 t ADT: 110
Richardson Rd
GoodOver: GRAPPE BAYOU
0.21 MI. WEST OF US 71, Grant, LA
Built 2007 Load: 32.4 t ADT: 100
Fairfield Rd
GoodOver: 3 BRANCHES CREEK
3.51 M. N. OF JCT LA 8, Grant, LA
Built 1998 Load: 32.4 t ADT: 125
New Bridge Rd
GoodOver: DARTIGO CREEK
1.52 MI. SOUTH OF LA 122, Grant, LA
Built 1998 Load: 32.4 t ADT: 6
US0090
GoodOver: CREEK
3.20 MI SE of LA 92-1, Iberia, LA
Built 1963 Load: 32.4 t ADT: 62,432
LA0680
GoodOver: Coulee Du Portage
1.33 MI NORTH OF LA 86, Iberia, LA
Built 1971 Load: 32.4 t ADT: 923
Freyou Rd
GoodOver: Bodin Coulee
1.2 Mi. South of US 90, Iberia, LA
Built 1991 Load: 32.4 t ADT: 565
Hazard Rd
GoodOver: COULEE
0.65 Mi S of La 14, Iberia, LA
Built 1984 Load: 32.4 t ADT: 1,307
Evergreen Rd
GoodOver: HWY 1, ROAD SIDE DITCH
3.2 MI.SW.LA75, LA 1, Iberville, LA
Built 1950 Load: 32.4 t ADT: 800
US0167
GoodOver: CREEK
0.6 MILES N. OF LA 505, Jackson, LA
Built 2011 Load: 32.4 t ADT: 5,367
US0167
GoodOver: CREEK
2.9 MI. N. OF LA 505, Jackson, LA
Built 2011 Load: 32.4 t ADT: 5,367
LA0542
GoodOver: CREEK
4.85 MI. E OF US 167, Jackson, LA
Built 2012 Load: 32.4 t ADT: 485
LA0146
GoodOver: CURR CREEK
0.1 MILES NORTH OF LA 155, Jackson, LA
Built 2013 Load: 32.4 t ADT: 882
LA0146
GoodOver: CREEK
1.0 MILES SOUTH OF LA 155, Jackson, LA
Built 2013 Load: 32.4 t ADT: 882
LA0146
GoodOver: CREEK
1.7 MILES SOUTH OF LA 155, Jackson, LA
Built 2013 Load: 32.4 t ADT: 882
OLIVE GROVE RD
GoodOver: BARNES CREEK
0.8 MILES SOUTH OF LA 556, Jackson, LA
Built 2014 Load: 32.4 t ADT: 60
US0167
GoodOver: CREEK
5.81 MI N WINN PARISH LN, Jackson, LA
Built 2001 Load: 32.4 t ADT: 13,811
US0167
GoodOver: CREEK
18 MI N WINN PARISH LN, Jackson, LA
Built 2008 Load: 32.4 t ADT: 8,681
US0167
GoodOver: CREEK
21.79 MI N WINN PARISH LN, Jackson, LA
Built 1951 Load: 32.4 t ADT: 8,681
US0167
GoodOver: CREEK
22.14 MI N WINN PARISH LN, Jackson, LA
Built 1951 Load: 32.4 t ADT: 8,681
LA0004
GoodOver: CREEK
5.07 MI E BIENVILLE PAR, Jackson, LA
Built 1987 Load: 32.4 t ADT: 3,086
LA0004
GoodOver: CYPRESS CREEK
10.23 MI E of US 167, Jackson, LA
Built 2005 Load: 32.4 t ADT: 2,246
LA0004
GoodOver: CLEAR BRANCH
6.1 MI EAST OF LA 505, Jackson, LA
Built 2005 Load: 32.4 t ADT: 2,246
LA0004
GoodOver: CREEK
7.9 MI EAST OF LA 505, Jackson, LA
Built 2005 Load: 32.4 t ADT: 2,246
LA0004
GoodOver: CREEK
9.7 MI EAST OF LA 505, Jackson, LA
Built 2005 Load: 32.4 t ADT: 2,246
LA0004
GoodOver: CREEK
10.3 MI EAST OF LA 505, Jackson, LA
Built 2006 Load: 32.4 t ADT: 2,910
RISER RD
GoodOver: COLON CREEK
5.3 M SSE INTR 344, Jackson, LA
Built 1989 Load: 32.4 t ADT: 475
RISER RD
GoodOver: DRAIN TO COLON CREEK
108 M S OF INTR 344, Jackson, LA
Built 1989 Load: 32.4 t ADT: 475
WHITNEY AVE
GoodOver: VERRETT CANAL
0.35 MI N OF LA 23, Jefferson, LA
Built 2005 Load: 32.4 t ADT: 500
WHITNEY AVE
GoodOver: VERRETT CANAL
0.4 MI N OF LA 23, Jefferson, LA
Built 2005 Load: 32.4 t ADT: 500
WHITNEY AVE
GoodOver: VERRETT CANAL
0.9 MI N OF LA 23, Jefferson, LA
Built 2005 Load: 32.4 t ADT: 500
LAUREL AVE
GoodOver: TERRY PKWY DRAIN
0.2 MI N OF LA 23, Jefferson, LA
Built 2017 Load: 32.4 t ADT: 2,500
W Espanade Ave
GoodOver: Canal 2
.4 miles west of Trans., Jefferson, LA
Built 1989 Load: 32.4 t ADT: 1,250
Tolmas @ Veterans
GoodOver: Canal 3
.2 miles east of Causeway, Jefferson, LA
Built 2008 Load: 32.4 t ADT: 1,250
W Napolean
GoodOver: Canal 4
.2 miles west of Causeway, Jefferson, LA
Built 2003 Load: 32.4 t ADT: 2,146
W Napolean
GoodOver: Canal 4
.1 mile east of Cleary, Jefferson, LA
Built 2003 Load: 32.4 t ADT: 2,146
W Napolean
GoodOver: Canal 4
.5 miles east of Williams, Jefferson, LA
Built 2004 Load: 32.4 t ADT: 2,146
W Napolean
GoodOver: Canal 4
.6 miles east of Napolean, Jefferson, LA
Built 2004 Load: 32.4 t ADT: 2,146
West Napoleon Ave
GoodOver: Canal #4
0.3 Mi E of Clearview Pkw, Jefferson, LA
Built 2003 Load: 32.4 t ADT: 532
LAPALCO BLVD
GoodOver: LABRANCH CANAL
0.3 MILES SOUTH OF US 90, Jefferson, LA
Built 2006 Load: 32.4 t
Showing 8,101-8,150 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 |