Historic Bridges in Louisiana

614 bridges built before 1951 in Louisiana still in service today.

Bridges Built Before 1951

The United States has 614 bridges in Louisiana built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
CREEK Louisiana Fair 1948 78 389
BUSHNECK BAYOUREL Louisiana Fair 1948 78 3,931
BUSHNECK BAYOU Louisiana Fair 1948 78 3,931
CREEK Louisiana Fair 1948 78 3,216
CREEK Louisiana Fair 1948 78 4,413
DRAIN Louisiana Fair 1948 78 1,130
MILE CREEK Louisiana Poor 1948 78 9,109
L DUGDEMONA RIVER Louisiana Fair 1948 78 455
CREEK Louisiana Fair 1948 78 455
CREEK Louisiana Fair 1948 78 3,275
CHOUDRANT CREEK Louisiana Fair 1948 78 3,275
CREEK Louisiana Fair 1948 78 3,275
CREEK Louisiana Fair 1948 78 2,216
CREEK Louisiana Fair 1948 78 703
CREEK Louisiana Fair 1948 78 703
CREEK Louisiana Poor 1948 78 422
HICKORY BRANCH Louisiana Fair 1948 78 2,079
CREEK Louisiana Fair 1948 78 2,079
CREEK Louisiana Fair 1948 78 6,586
FISH CREEK Louisiana Fair 1948 78 7,084
LITTLE CREEK Louisiana Fair 1948 78 7,084
CYPRESS CREEK Louisiana Fair 1948 78 1,898
LITTLE SANDY BAYOU Louisiana Fair 1948 78 1,977
CANE RIVER Louisiana Poor 1948 78 996
CANE RIVER SPILLWAY Louisiana Good 1948 78 111
CREEK Louisiana Poor 1948 78 3,518
CHICKASAW CREEK Louisiana Poor 1948 78 3,518
LAKE BRUIN BAYOU Louisiana Fair 1948 78 1,873
DRAINAGE CANAL Louisiana Fair 1948 78 10,492
CLAY BAYOU Louisiana Fair 1948 78 503
JASPER CREEK Louisiana Fair 1948 78 2,761
ALEXANDER CREEK Louisiana Fair 1948 78 2,761
HAMMER CREEK TRIB Louisiana Fair 1948 78 1,585
HAMMER CREEK Louisiana Good 1948 78 1,585
N O P B RR(CLAIBORNE AVE Louisiana Poor 1949 77 36,993
BAYOU PLAQUEMINE BRULE Louisiana Fair 1949 77 4,120
DRAIN Louisiana Good 1949 77 1,664
COULEE DE MANUEL Louisiana Fair 1949 77 3,440
COULEE Louisiana Fair 1949 77 200
COULEE Louisiana Fair 1949 77 200
Bayou Teche Louisiana Fair 1949 77 4,721
WILLIAMS CREEK Louisiana Fair 1949 77 898
MIDDLEFORK BAYOU DARBONN Louisiana Fair 1949 77 990
MIDDLEFORK B.DARBONNE RL Louisiana Fair 1949 77 990
NICK CREEK Louisiana Fair 1949 77 990
CREEK Louisiana Fair 1949 77 1,435
INDIAN CREEK Louisiana Poor 1949 77 123
BAGET CREEK Louisiana Fair 1949 77 4,394
WILLIAMS CREEK Louisiana Fair 1949 77 6,672
LITTLE CROOKED CR Louisiana Fair 1949 77 4,087

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.