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Historic Bridges in Maine

630 bridges built before 1951 in Maine still in service today.

Bridges Built Before 1951

The United States has 630 bridges in Maine 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
SUCKER BK Maine Fair 1925 101 2,127
TEMPLE STREAM Maine Fair 1925 101 329
WILLS STRAIT (ATL OCEAN) Maine Fair 1926 100 2,038
MOUNT BLUE STREAM Maine Fair 1926 100 2,370
LITTLE ANDROSCOGGIN RIVE Maine Fair 1926 100 2,332
SONGO RIVER Maine Poor 1926 100 1,011
TOGUS STREAM Maine Fair 1926 100 10,735
WILSON STREAM Maine Fair 1926 100 92
SALT POND OUTLET Maine Fair 1926 100 1,867
ROYAL RIVER Maine Fair 1926 100 1,280
HOUGHTON BROOK Maine Fair 1926 100 948
LITTLE ANDROSCOGGIN RIV Maine Fair 1926 100 867
BEAR BROOK Maine Poor 1926 100 400
LEMON STREAM Maine Fair 1926 100 2,924
ST. GEORGE RIVER Maine Fair 1926 100 152
CAMBRIDGE RIVER Maine Poor 1926 100 110
ALDER BK Maine Poor 1926 100 709
CROSS CANAL #2 Maine Fair 1927 99 9,398
FLANDERS STREAM Maine Fair 1927 99 6,480
SANDY STREAM Maine Fair 1927 99 3,362
UNITY PD OUTLET/25MI STR Maine Fair 1927 99 1,008
MARSH STREAM Maine Fair 1927 99 5,810
TUNK STREAM Maine Fair 1927 99 316
WHITTEN STREAM Maine Poor 1927 99 158
MAIN CANAL Maine Fair 1927 99 4,110
SANDY RIVER Maine Poor 1927 99 838
SANDY STREAM Maine Fair 1927 99 305
PENDEXTER BROOK Maine Fair 1927 99 989
MAINE CENTRAL RAILROAD Maine Poor 1928 98 807
WILSON (COOS) STREAM Maine Poor 1928 98 173
LITTLE MADAWASKA RV Maine Fair 1928 98 538
ST CROIX RIVER Maine Poor 1928 98 32
ARNOLD BROOK Maine Fair 1928 98 970
WILSON STREAM Maine Fair 1928 98 2,942
ELLIS RIVER Maine Poor 1928 98 4,239
STONEY BROOK Maine Fair 1928 98 3,147
15 MILE STREAM Maine Fair 1928 98 3,112
MARSH STREAM Maine Fair 1928 98 2,774
SANDY STREAM Maine Poor 1928 98 28
PASSAGASSAWAUKEAG RIVER Maine Fair 1928 98 956
WALKER BROOK Maine Fair 1928 98 774
SANDY RIVER Maine Poor 1928 98 1,008
DEAD STREAM Maine Fair 1928 98 174
MATTAWAMKEAG RIVER Maine Poor 1928 98 123
GREAT WORKS RIVER Maine Fair 1928 98 294
HULLS COVE ROAD Maine Fair 1928 98 12,768
KEBO BROOK Maine Good 1928 98 1,214
STANLEY BROOK Maine Fair 1928 98 6,816
CONCORD RIVER Maine Fair 1929 97 454
BEAR RIVER Maine Fair 1929 97 5,738

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