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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
PRETTYBOY RESERVOIR Maryland Fair 1932 94 775
PRETTYBOY BRANCH Maryland Fair 1932 94 110
PISCATAWAY CREEK Maryland Poor 1932 94 6,771
GEORGES CREEK Maryland Fair 1933 93 1,430
MOORES RUN Maryland Fair 1933 93 1,430
BRANCH OF GEORGES CREEK Maryland Fair 1933 93 3,555
SEVERN RUN Maryland Fair 1933 93 8,680
OCTORARO CREEK Maryland Fair 1933 93 11,282
ZEKIAH SWAMP Maryland Fair 1933 93 9,300
ALLENS FRESH RUN Maryland Fair 1933 93 8,201
FAHRNEY BRANCH Maryland Fair 1933 93 7,952
GLADE RUN Maryland Fair 1933 93 691
BUFFALO RUN Maryland Fair 1933 93 2,055
BROAD CREEK Maryland Fair 1933 93 1,140
MORGAN CREEK Maryland Fair 1933 93 6,235
SWANSON CREEK Maryland Fair 1933 93 6,020
INDIAN CREEK Maryland Good 1933 93 450
SOUTHEAST CREEK Maryland Fair 1933 93 1,842
ANTIETAM CREEK Maryland Fair 1933 93 12,022
STEMMERS RUN Maryland Poor 1933 93 3,982
MILL DAM RUN Maryland Poor 1933 93 1,497
GILBERT SWAMP RUN Maryland Poor 1933 93 137
CARROLL CREEK Maryland Fair 1933 93 3,615
MILL BROOK Maryland Good 1933 93 133
OTTER POINT CREEK (N) Maryland Fair 1933 93 9,886
BIG PIPE CREEK Maryland Fair 1934 92 15,340
CATOCTIN CREEK Maryland Fair 1934 92 5,450
CRABTREE CREEK Maryland Fair 1934 92 1,711
DEER CREEK Maryland Fair 1934 92 11,172
DEER CREEK Maryland Fair 1934 92 2,951
BIG BRANCH Maryland Fair 1934 92 2,420
MILLS BRANCH Maryland Fair 1934 92 2,961
PAINT BRANCH Maryland Fair 1934 92 23,281
SLIGO CREEK Maryland Fair 1934 92 21,452
NORTHWEST BRANCH Maryland Good 1934 92 41,631
JONES CREEK Maryland Fair 1934 92 20,870
BACK CREEK Maryland Fair 1934 92 13,630
BURNT MILL BRANCH Maryland Fair 1934 92 4,162
PATAPSCO RIVER Maryland Fair 1934 92 9,721
SWANSON CREEK Maryland Fair 1934 92 1,383
LITTLE SENECA CREEK Maryland Fair 1934 92 2,361
PATUXENT RIVER Maryland Fair 1935 91 9,715
LITTLE GUNPOWDER FALLS Maryland Good 1935 91 14,805
LITTLE GUNPOWDER FALLS Maryland Good 1935 91 14,805
GUNPOWDER FALLS Maryland Good 1935 91 14,805
GUNPOWDER FALLS Maryland Good 1935 91 14,805
HONEYGO RUN Maryland Fair 1935 91 39,760
WHITEMARSH RUN Maryland Fair 1935 91 29,100
STEMMERS RUN Maryland Fair 1935 91 54,850
REDHOUSE CREEK Maryland Fair 1935 91 37,450

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