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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
GREEN HILL CREEK Maryland Fair 1931 95 1,452
LIBERTYTOWN BR Maryland Fair 1931 95 1,030
BLACKROCK RUN Maryland Fair 1931 95 339
GWYNNS FALLS CSX Maryland Fair 1931 95 10,072
AMTRAK Maryland Poor 1931 95 7,030
AMTRAK RAILROAD Maryland Fair 1931 95 18,376
PRETTYBOY RESERVOIR Maryland Fair 1931 95 1,347
PRETTYBOY RESERVOIR Maryland Poor 1931 95 311
FISHING CREEK Maryland Poor 1931 95 761
BROAD RUN Maryland Fair 1931 95 1,988
WILLS CREEK Maryland Fair 1932 94 13,491
SAWPIT RUN Maryland Fair 1932 94 2,142
TOWN CREEK Maryland Poor 1932 94 2,022
C&O CANAL Maryland Fair 1932 94 1,642
ROCK CREEK Maryland Fair 1932 94 9,150
JONES FALLS Maryland Fair 1932 94 10,911
FORGE BRANCH Maryland Fair 1932 94 4,261
BEAR BRANCH Maryland Fair 1932 94 1,662
BIG ELK CREEK Maryland Fair 1932 94 8,616
HAPPY VALLEY BRANCH Maryland Fair 1932 94 2,701
ZEKIAH SWAMP Maryland Fair 1932 94 37,490
MONOCACY RIVER Maryland Fair 1932 94 16,296
DOLLYHYDE CREEK Maryland Fair 1932 94 5,482
OWENS CREEK Maryland Fair 1932 94 3,131
MONOCACY RIVER Maryland Fair 1932 94 937
MIDDLE CREEK Maryland Fair 1932 94 4,480
BIG SHADE RUN Maryland Fair 1932 94 1,783
CASSELMAN RIVER Maryland Fair 1932 94 3,841
YOUGHIOGHENY RIVER Maryland Fair 1932 94 1,184
NYDEGGER RUN Maryland Good 1932 94 1,930
LITTLE YOUGHIOGHENY RIVE Maryland Fair 1932 94 6,712
DEER CREEK Maryland Fair 1932 94 6,101
DEER CREEK Maryland Fair 1932 94 7,736
SASSAFRAS RIVER Maryland Fair 1932 94 1,022
BUCKLODGE BRANCH Maryland Fair 1932 94 5,572
SLIGO CREEK Maryland Fair 1932 94 28,580
SLIGO CR PKWY & SLIGO CR Maryland Good 1932 94 7,500
ROCK CREEK Maryland Fair 1932 94 10,982
NORTHWEST BRANCH Maryland Fair 1932 94 7,001
NORTHWEST BRANCH Maryland Fair 1932 94 20,911
GRAVEL RUN Maryland Fair 1932 94 11,625
ST MARYS RIVER Maryland Fair 1932 94 4,242
BEAVER CREEK Maryland Fair 1932 94 8,291
CONOCOCHEAGUE CREEK Maryland Fair 1932 94 1,539
POCOMOKE RIVER Maryland Fair 1932 94 5,865
DAVIS BRANCH Maryland Fair 1932 94 1,532
FRANKLIN STREET & CSX RR Maryland Fair 1932 94 19,319
CHINQUAPIN RUN Maryland Fair 1932 94 20,285
CHINQUAPIN RUN Maryland Fair 1932 94 20,285
PRETTYBOY RESERVOIR Maryland Fair 1932 94 127

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