Total Bridges
12,698
Public highway bridges in Louisiana
State profile · Above median Poor share
Louisiana bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Louisiana.
- 12,698
- Public bridges
- 38.7%
- Good condition
- 11.5%
- Poor condition
Louisiana holds 12,698 public highway bridges (#24 of 52 by inventory) with a 11.48% Poor share (#8 of 52 by Poor share).
That is 11.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 45 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
38.7%
4,919 bridges rated 7-9
-11.3pp vs 50% benchmark
Poor Condition
11.5%
1,458 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.5%
Louisiana vs national bridge condition
Louisiana - Good condition share 38.7%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana - Poor-condition share 38.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Louisiana in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Louisiana vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
12,698 24th of 54 higher than 30 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Louisiana
The highlighted point is Louisiana: 12,698 bridges and 11.48% in Poor condition, rank #45 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Louisiana on that same Poor-share ordering:
- North Dakota: 4,255 bridges · 10.98% Poor
- Michigan: 11,371 bridges · 11.27% Poor
- Louisiana: 12,698 bridges · 11.48% Poor
- Pennsylvania: 23,299 bridges · 12.58% Poor
- Guam: 47 bridges · 12.77% Poor
The full national sortable table lives on the rankings page.
Material families in Louisiana
Exclusive FHWA material families across all 12,698 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Louisiana’s inventory
State agency holds 61.0% of the 12,698 public highway bridges filed under Louisiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Louisiana’s bridges were built
Pre-1950 construction accounts for 4.2% of the 12,698 bridges with a recorded original year in Louisiana. Era bands are orthogonal to the Poor-share ranking above.
Condition Distribution
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 322 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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Louisiana on the same metric.
ND
North Dakota
10.98% top marginal rate
MI
Michigan
11.27% top marginal rate
LA
Louisiana
11.48% top marginal rate
PA
Pennsylvania
12.58% top marginal rate
GU
Guam
12.77% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Avenue E
PoorOver: DRESSER CANAL
0.10 MI WEST OF LA 1, Lafourche, LA
Built 1952 Load: 0.0 t
VALENTINE BRIDGE R
PoorOver: LAFOURCHE BAYOU
0.01 MI N OF LA 1, Lafourche, LA
Built 1969 Load: 0.0 t
UNNAMED RD
PoorOver: I-10
3.1 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
UNNAMED RD
PoorOver: I-10
4.5 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
Almonaster Ave
PoorOver: INNER HARBOR NAVIGATION
0.01 MI E OF FRANCE RD, Orleans, LA
Built 1919 Load: 0.0 t
Beiber Rd
PoorOver: NEZPIQUE BAYOU
3.65 Mi W of La 1160, Evangeline, LA
Built 1965 Load: 0.0 t ADT: 70
All Bridges in Louisiana
US0165
FairOver: OLD SLOUGH
0.63 MI. NORTH OF LA 8, Grant, LA
Built 2007 Load: 32.7 t ADT: 7,084
US0165
FairOver: BIG CREEK
0.76 MI. NORTH OF LA 8, Grant, LA
Built 2007 Load: 32.7 t ADT: 7,084
LA0008
FairOver: RED RIVER LA 1 UP RR
LA 8 OVER RED RIVER AND L, Grant, LA
Built 1984 Load: 32.7 t ADT: 2,091
I0049
FairOver: HWYS STRTS RR BAYOU
0.23 MI. NORTH OF US 167B, Rapides, LA
Built 1995 Load: 32.7 t ADT: 7,400
I0049
FairOver: BAYOU JEAN DE JEAN
1.8 M NORTH OF LA 1200, Rapides, LA
Built 1989 Load: 32.7 t ADT: 25,477
US0071
FairOver: LA 1 FRONTAGE RD. UP R
0.64 MI. NE OF LA 498, Rapides, LA
Built 1994 Load: 32.7 t ADT: 27,628
Hickory Hill Rd
FairOver: BAYOU RIGOLETTE TRIB.
1.4 MI. WEST OF LA 3225, Rapides, LA
Built 2000 Load: 32.7 t ADT: 1,300
LA0006
FairOver: TOLEDO BEND LAKE
2.02 MI. WEST OF LA 191, Sabine, LA
Built 1968 Load: 32.7 t ADT: 3,030
LA0175
FairOver: BAYOU SAN MIGUEL RELIEF
1.94 M N OF N JCT. LA 120, Sabine, LA
Built 1934 Load: 32.7 t ADT: 1,587
LA0175
FairOver: NORTH FORK CREEK
7.87 M N OF N JCT. LA 120, Sabine, LA
Built 1934 Load: 32.7 t ADT: 1,900
Babin Rd
FairOver: GRAND GOUDINE BAYOU
0.5 M N of LA 74, Ascension, LA
Built 1970 Load: 32.7 t ADT: 500
LA0070
FairOver: Avoca Island Cutoff
5.7 MI N LA 1016-1, Assumption, LA
Built 1988 Load: 32.7 t ADT: 6,787
LA0408
FairOver: COMITE RIVER
0.8 Mi E of LA 423, East Baton Rouge, LA
Built 1988 Load: 32.7 t ADT: 26,976
Bluebonnet Blvd
FairOver: BAYOU FOUNTAIN
.23 MI N . OF BURBANK DR., East Baton Rouge, LA
Built 1989 Load: 32.7 t ADT: 48,600
Bluebonnet Blvd
FairOver: SWAMP/BLUEBONNET
.6 MI N. OF BURBANK, East Baton Rouge, LA
Built 1978 Load: 32.7 t ADT: 24,300
Bluebonnet Blvd
FairOver: SWAMP/BLUEBONNET
.6 MI N OF BURBANK, East Baton Rouge, LA
Built 1978 Load: 32.7 t ADT: 24,300
I0010
FairOver: E.WASH.ST.OFF RAMP
0.6 M S of I-10/I110 Splt, East Baton Rouge, LA
Built 1963 Load: 32.7 t ADT: 537
I0010
FairOver: LOUISE ST ON RAMP
I0010, East Baton Rouge, LA
Built 1963 Load: 32.7 t ADT: 8,250
I0110
FairOver: CITY STREETS
0.3 M S of I-110&LA 73, East Baton Rouge, LA
Built 1963 Load: 32.7 t ADT: 1,858
I0110
FairOver: CITY STREET
I0110, East Baton Rouge, LA
Built 1963 Load: 32.7 t ADT: 8,250
I0110
FairOver: I 110 US 190 0PS
0.2 M E of I-110&US 61, East Baton Rouge, LA
Built 1976 Load: 32.7 t ADT: 8,250
LA0068
FairOver: REDWOOD CREEK TRIB
6 MILES NORTHWEST OF JACK, East Feliciana, LA
Built 2010 Load: 32.7 t ADT: 680
US0190
FairOver: M.P. RR @ LIVONIA
0.75 MI W JCT LA 77, Pointe Coupee, LA
Built 1984 Load: 32.7 t ADT: 20,176
US0190
FairOver: M.P. RR @ LIVONIA
0.75 MI W JCT LA 77, Pointe Coupee, LA
Built 1984 Load: 32.7 t ADT: 13,660
I0010
FairOver: LA 1 RAMPS
I0010, West Baton Rouge, LA
Built 1968 Load: 32.7 t ADT: 18,560
US0061
FairOver: THOMPSON CREEK BRIDGE
US 61 WEST FELICIANA, West Feliciana, LA
Built 1987 Load: 32.7 t ADT: 2,531
LA0066
FairOver: BIG BAYOU SARA
LA0066, West Feliciana, LA
Built 1949 Load: 32.7 t ADT: 4,492
LA0442
FairOver: W HOG BRANCH BR
LA0442, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
LA0442
FairOver: HOG BRANCH RELIEF
LA0442, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
LA0442
FairOver: HOG BRANCH RELIEF
LA0442, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
LA0442
FairOver: FLAT CREEK
0.6 M W OF LA 441, Livingston, LA
Built 1968 Load: 32.7 t ADT: 860
I0010
FairOver: I-10 OVER I-59 NB LANE
I0010, St. Tammany, LA
Built 1970 Load: 32.7 t ADT: 1,600
I0059
FairOver: WEST PEARL RIVER
5.2 MI NO I-10 & I-59 INT, St. Tammany, LA
Built 1997 Load: 32.7 t ADT: 36,841
I0059
FairOver: WEST PEARL RIVER
5.2 MI NO.I-12 & I-10 INT, St. Tammany, LA
Built 1996 Load: 32.7 t ADT: 16,250
I0059
FairOver: YELLOW BAYOU
I0059, St. Tammany, LA
Built 1962 Load: 32.7 t ADT: 33,925
I0059
FairOver: E. PEARL RIV FRONTAGE RD
8.2 Mi N OF US 11, St. Tammany, LA
Built 1958 Load: 32.7 t ADT: 14,900
I0059
FairOver: E. PEARL RIV FRONTAGE RD
0.6 MI SW of US 11, St. Tammany, LA
Built 1958 Load: 32.7 t ADT: 33,925
I0012 RAMP B
FairOver: US 190
2.6 M W OF LA 59, St. Tammany, LA
Built 1976 Load: 32.7 t ADT: 9,838
I0012
FairOver: ICRR
I0012, Tangipahoa, LA
Built 1975 Load: 32.7 t ADT: 21,736
S. Coburn Rd
FairOver: SELSERS CREEK
0.4 MI. S OF LA. 1067, Tangipahoa, LA
Built 1996 Load: 32.7 t ADT: 94
Woodstone Dr
FairOver: YELLOW WATER CREEK
0.15M E OF US51/WOODSTONE, Tangipahoa, LA
Built 1992 Load: 32.7 t ADT: 418
Chappepeela Rd
FairOver: CHAPPEPEELA CREEK
0.2 MI. W OF LA 445, Tangipahoa, LA
Built 1990 Load: 32.7 t ADT: 1,145
Old Genessee Rd
FairOver: YELLOW WATER CREEK
2.4M SE OF EXIT 442, Tangipahoa, LA
Built 1993 Load: 32.7 t ADT: 557
Neal Rd
FairOver: LITTLE CHAPEPEELA CREEK
1.7 mi. w of la. 445, Tangipahoa, LA
Built 1992 Load: 32.7 t ADT: 878
E. Bell Rd
FairOver: PEAKS CREEK
2.8 MI SW OF JCT 16 & 445, Tangipahoa, LA
Built 1995 Load: 32.7 t ADT: 201
W. Olive St
FairOver: CREEK
.45MI SW US 51 W OLIVE, Tangipahoa, LA
Built 1979 Load: 32.7 t ADT: 1,520
Sam Thomas Rd
FairOver: CREEK
1.5 MILES NORTH OF LA 438, Washington, LA
Built 2014 Load: 32.7 t ADT: 324
EAST GATE BRIDGE
FairOver: MACKS BAYOU
0.1 MI S. OF INDUSTRIAL D, Bossier, LA
Built 1998 Load: 32.7 t ADT: 2,000
RANGE ROAD
FairOver: COOPER BAYOU
0.1 MI West of Dunn Road, Bossier, LA
Built 1951 Load: 32.7 t ADT: 2,500
RANGE ROAD
FairOver: FLAT RIVER
1.9 MI E. OF LINDBURG RD, Bossier, LA
Built 1951 Load: 32.7 t ADT: 2,000
Showing 3,751-3,800 of 12,698 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
What to do with this
Use Louisiana's inventory picture to drill to a county or a specific span.
- Browse counties in Louisiana and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Louisiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.