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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
DORCUS BRANCH Maryland Fair 1925 101 3,541
WILSON RUN Maryland Fair 1925 101 10,524
GRAYS RUN Maryland Fair 1925 101 12,210
LITTLE MONOCACY RIVER Maryland Fair 1925 101 5,050
LITTLE BENNETT CREEK Maryland Good 1925 101 7,540
MOLL DYERS RUN Maryland Good 1925 101 2,190
LITTLE TONOLOWAY CREEK Maryland Fair 1925 101 4,051
LITTLE PINEY RUN Maryland Fair 1925 101 382
AMTRAK Maryland Fair 1925 101 12,887
I-83 JONES FALLS & MTA Maryland Poor 1925 101 10,400
HERRING RUN Maryland Fair 1925 101 22,752
AMTRAK Maryland Fair 1925 101 2,270
PINEY CREEK Maryland Fair 1925 101 —
CARROLL CREEK Maryland Fair 1925 101 1,481
DEER CREEK Maryland Fair 1925 101 112
TRIB TO S BR PATAPSCO R Maryland Poor 1925 101 1,427
BENNETT CREEK Maryland Poor 1925 101 608
POTOMAC RIVER TRIBUTARY Maryland Fair 1925 101 1,322
LITTLE MONOCACY RIVER Maryland Fair 1925 101 161
LITTLE SENECA CREEK Maryland Poor 1925 101 437
SENECA CREEK TRIBUTARY Maryland Fair 1925 101 615
CSXT RAILROAD Maryland Fair 1925 101 1,727
TOWN CREEK Maryland Fair 1926 100 43
HUNTING CREEK Maryland Fair 1926 100 7,412
BALLENGER CREEK Maryland Fair 1926 100 17,450
BR OF POTOMAC RIVER Maryland Fair 1926 100 2,471
QUANTICO CREEK Maryland Fair 1926 100 1,119
JENNINGS RUN Maryland Fair 1926 100 1,125
SECOND MINE BRANCH Maryland Fair 1926 100 2,118
TRIBUTARY TO GUNPOWDER F Maryland Fair 1926 100 400
CASSELMAN RIVER Maryland Poor 1926 100 413
HAWLINGS RIVER Maryland Fair 1926 100 1,000
PINEY RUN Maryland Fair 1927 99 12,400
FLAT RUN Maryland Fair 1927 99 1,820
LITTLE HUNTING CREEK Maryland Fair 1927 99 1,072
SUSQUEHANNA RIVER Maryland Fair 1927 99 14,243
CATTAIL CREEK Maryland Fair 1927 99 13,200
REDDY BRANCH Maryland Fair 1927 99 10,740
LITTLE ANTIETAM CREEK Maryland Fair 1927 99 490
NASSAWANGO CREEK Maryland Fair 1927 99 4,540
GILBERT SWAMP RUN Maryland Poor 1927 99 656
TRIB TO PATUXENT RIVER Maryland Good 1927 99 14,730
LITTLE GUNPOWDER FALLS Maryland Fair 1928 98 8,520
LITTLE GUNPOWDER FALLS Maryland Fair 1928 98 10,192
PLUM POINT CREEK Maryland Fair 1928 98 692
REEDER RUN Maryland Fair 1928 98 1,192
BEAVER BRANCH Maryland Fair 1928 98 1,211
CATOCTIN CREEK Maryland Fair 1928 98 4,580
CATOCTIN CREEK Maryland Fair 1928 98 3,891
CYPRESS BRANCH Maryland Fair 1928 98 1,841

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