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Historic Bridges in Maryland

968 bridges built before 1951 in Maryland still in service today.

Bridges Built Before 1951

The United States has 968 bridges in Maryland 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
CSX RR Maryland Fair 1942 84 21,441
AMTRAK WMATA Maryland Fair 1942 84 23,901
CSXT METRO 55TH AVENUE Maryland Fair 1942 84 37,382
INDIAN CREEK Maryland Fair 1942 84 42,890
CATTAIL BRANCH Maryland Fair 1942 84 32,660
CABIN BRANCH Maryland Fair 1942 84 18,430
BEAVERDAM CREEK Maryland Fair 1942 84 45,682
HERRING CREEK Maryland Fair 1942 84 21,431
HERRING CREEK Maryland Fair 1942 84 21,431
SINEPUXENT BAY Maryland Fair 1942 84 34,001
ROLAND RUN Maryland Good 1942 84 873
NORTH BRANCH OF THE POTO Maryland Fair 1942 84 250
KILGOUR BRANCH Maryland Fair 1942 84 2,961
ROMNEY CREEK Maryland Fair 1942 84 100
AMTRAK Maryland Fair 1943 83 8,627
AMTRAK Maryland Fair 1943 83 8,626
AMTRAK Maryland Fair 1943 83 3,563
CSX RR TRACKS Maryland Good 1943 83 15,581
BRANCH AVENUE Maryland Fair 1943 83 37,000
SUITLAND PARKWAY Maryland Fair 1943 83 42,725
CABIN CREEK Maryland Fair 1944 82 1,861
MIDDLETOWN BRANCH Maryland Fair 1944 82 19,469
LAFAYETTE AVE CSX TRANS Maryland Good 1944 82 20,511
BEAVERDAM BRANCH Maryland Fair 1944 82 10,230
DEEP RUN Maryland Poor 1944 82 599
BRIGHTON DAM & TRIADELPH Maryland Fair 1944 82 7,106
SUITLAND ROAD Maryland Fair 1944 82 37,000
ANDREWS AFB ACCESS ROAD Maryland Fair 1944 82 16,750
S SIDE FRANKLIN BRANCH Maryland Fair 1944 82 120
WESTERN RUN Maryland Fair 1945 81 2,991
NORTHEAST CREEK Maryland Fair 1945 81 6,302
CAREY BRANCH Maryland Good 1945 81 65,100
HENSON CREEK Maryland Fair 1945 81 65,100
CAREY BRANCH Maryland Good 1945 81 32,915
MILL CREEK Maryland Fair 1945 81 31,938
TRIB TO POTTS MILL CREEK Maryland Fair 1945 81 31,938
BR OF POTTS MILL CREEK Maryland Fair 1945 81 31,938
PAPERMILL POND Maryland Fair 1945 81 24,631
TRIB TO LAKE ROYER Maryland Fair 1945 81 1,630
WAGRAM CREEK Maryland Fair 1945 81 12,933
PEA VINE RUN Maryland Fair 1945 81 177
GUNPOWDER FALLS Maryland Fair 1945 81 1,149
BRANCH OF OCTORARO CREEK Maryland Fair 1945 81 802
BONNIE BRANCH Maryland Poor 1945 81 2,588
UNNAMED STREAM Maryland Fair 1945 81 680
DEEP RUN Maryland Fair 1945 81 5,788
CSXT RAILROAD Maryland Fair 1945 81 7,121
SPA CREEK Maryland Fair 1946 80 17,042
N BRANCH OF PATAPSCO RIV Maryland Good 1946 80 60,433
PISCATAWAY CREEK Maryland Fair 1946 80 49,700

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.

All Bridges Poor Condition Scour Critical Bridge Stats