Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Louisiana, based on the FHWA National Bridge Inventory.
Data updated May 2026
Total Bridges
12,699
Public highway bridges in Louisiana
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
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.
PA
ND
LA
PR
ME
Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Over: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Over: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Over: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Over: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Over: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Over: CREEK
3.5 MI SW OF SR 22 EXIT, Tangipahoa, LA
Over: WASHLEY CREEK
3MI NE/LA445 BOBBYHYDE RD, Tangipahoa, LA
Over: CHAPPEPEELA RELIEF BRIDG
4.0M NW OF JCT 190 & 445, Tangipahoa, LA
Over: MORGAN BRANCH
1.3 MI N/E JCT 1063 & 442, Tangipahoa, LA
Over: JENNY BRANCH
JULES WALLER ROAD, Tangipahoa, LA
Over: CALCASIEU RIVER
8.6 MI EAST OF LA 121, Vernon, LA
Over: THIGPEN CREEK
0.9 MILES NORTH OF LA 16, Washington, LA
Over: WICKOFF BAYOU
0.32 MI. N. OF LA 356, Acadia, LA
Over: BAYOU WIKOFF
0.38 Mi W of La 95, Acadia, LA
Over: COULEE
0.6 MI W of LA 1120, Acadia, LA
Over: Coulee Duralde
1.2 MILES SOUTH OF LA 98, Acadia, LA
Over: Coulee
0.5 Mi West of La 1119, Acadia, LA
Over: CANAL
0.51 MI EAST OF LA 1100, Acadia, LA
Over: BAYOU BLANC
0.5 MI S US90, Acadia, LA
Over: AUSTIN BRANCH
0.7 MI W of B F TOWER RD, Allen, LA
Over: Narcisse Bayou
0.1 Mi E of US 61, Ascension, LA
Over: PANAMA CANAL
APPROX. 2.0 MI. SOUTH OF, Ascension, LA
Over: Cross Drain
0.5 Mi of W of LA 115, Avoyelles, LA
Over: LITTLE CREEK
0.5 MI E OF LA 389, Beauregard, LA
Over: SPRING BRANCH
0.8 MI E of BEEHIVE LOOP, Beauregard, LA
Over: LITTLE DRY CREEK
1.6 MI WEST OF LA 394, Beauregard, LA
Over: LITTLE BARNES CREEK
0.7 MI E. of US 171, Beauregard, LA
Over: SALINE BAYOU
1.85 MI EAST OF LA 9, Bienville, LA
Over: TRIB TO BUCHANAN BAYOU
0.6 MI. S. OF KEITHVILLE-, Caddo, LA
Over: SPRR
0.1 MI. E. OF US 171, Caddo, LA
Over: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Over: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Over: BYCYCLE TRAIL
0.5 MI. NO. OF LA 30, Caddo, LA
Over: SPRING GULLY
0.6 MI S OF LA 108, Calcasieu, LA
Over: GUM SLOUGH
0.8 MI EAST OF LA 27, Calcasieu, LA
Over: DRAIN
0.1 MI E OF LAUBERGE BLVD, Calcasieu, LA
Over: BUXTON CREEK
2.2 MI S OF LA 12, Calcasieu, LA
Over: CREEK
3.3 MI WEST OF US 165, Caldwell, LA
Over: CASTOR CREEK
2.35 MI NORTH OF LA 4, Caldwell, LA
Over: YELLOW BRANCH CREEK
0.29 M E of LA 772, Catahoula, LA
Over: BLACK BAYOU
0.65 MI W. OF LA 534, Claiborne, LA
Over: BOIS D'ARC BAYOU
2.71 M N OF LA 177 INTR, De Soto, LA
Over: CHATMAN BAYOU
3.7 MI. S OF LA 175, De Soto, LA
Over: WHITE'S BAYOU
3.7 MILES EAST OF LA.964, East Baton Rouge, LA
Over: CHIPPEWA ST. ON RAMP (SB
I0110, East Baton Rouge, LA
Over: NORTH BLVD. R.R. OVERPAS
0.2 MI. E. OF I110, East Baton Rouge, LA
Over: DOYLE BAYOU
1.3 M W of LA 67, East Baton Rouge, LA
Over: Lewis Creek
1.0 Mi S of LA 10, East Feliciana, LA
Over: WW WOODLAND CREEK
1.2 M NE of LA 432&LA 67, East Feliciana, LA
Over: COULEE
0.58 Mi E of La 13, Evangeline, LA
Over: COULEE
0.38 Mi NW of La 115, Evangeline, LA
Over: LITTLE TURKEY CREEK
1.50 M S of LA 1242, Franklin, LA
Over: LITTLE TURKEY CREEK
1.50 M S of LA 1242, Franklin, LA
Over: ASH SLOUGH RELIEF
0.25 M N of LA 868, Franklin, LA
Over: ASH SLOUGH RELIEF
0.25 M N of LA 868, Franklin, LA
Showing 9,801-9,850 of 12,699 bridges
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.