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
SHEEPSCOT RIVER Maine Fair 1948 78 623
TEMPLE STREAM Maine Poor 1948 78 978
ROYAL RIVER Maine Fair 1948 78 826
MARSH STREAM Maine Fair 1948 78 1,209
MILL STREAM Maine Fair 1948 78 1,050
TROUT BROOK Maine Fair 1948 78 74
LITTLE NORRIDGEWOCK STR Maine Fair 1948 78 688
MATTAGODUS STREAM Maine Poor 1948 78 390
SANDY STREAM Maine Fair 1948 78 3,572
ROUTE US 1 NB & SB Maine Poor 1948 78 2,214
DEAD RIVER Maine Fair 1949 77 145
BOG BK Maine Fair 1949 77 145
JEROME BROOK Maine Fair 1949 77 145
POND STREAM Maine Poor 1949 77 145
STILLWATER RIVER Maine Fair 1949 77 15,860
LAKE WASSOOKEAG Maine Fair 1949 77 3,916
LITTLE ANDROSCOGGIN RIVE Maine Fair 1949 77 10,554
OTTER STREAM Maine Fair 1949 77 1,167
MOLUNKUS STREAM Maine Fair 1949 77 1,830
GOOSE FALLS(TIDAL ESTU) Maine Poor 1949 77 44
DAVIS BROOK Maine Fair 1949 77 44
DYER CREEK Maine Fair 1949 77 547
CROOKED RIVER Maine Fair 1949 77 860
ALDER STREAM Maine Fair 1949 77 632
ABAGADASSET RIVER Maine Poor 1949 77 366
CHARZEE STR (THOMPSON BK Maine Fair 1949 77 492
FISH RIVER Maine Poor 1949 77 1,140
CHANDLER RIVER Maine Fair 1949 77 228
WILLET STREAM Maine Fair 1949 77 1,817
DAVIS STREAM Maine Poor 1949 77 50
SHEEPSCOT RIVER Maine Fair 1949 77 528
LIMESTONE STREAM Maine Fair 1949 77 156
BEAN BROOK Maine Fair 1949 77 370
TRACY BROOK Maine Fair 1949 77 1,179
CROOKED RIVER Maine Good 1949 77 2,254
CROOKED RIVER Maine Fair 1949 77 619
MOOSE BROOK Maine Fair 1949 77 310
KENNEBEC RIVER + MCRR Maine Fair 1949 77 20,252
N. BRANCH MARSH STREAM Maine Fair 1949 77 1,292
MOOSE BROOK Maine Poor 1949 77 420
SEVEN MILE STREAM Maine Fair 1949 77 188
KINGSLEY Maine Fair 1949 77 230
PANTHER RUN Maine Fair 1949 77 1,187
MDOT RR Maine Fair 1949 77 1,990
WILSON STREAM Maine Fair 1950 76 140
MCGURDY STREAM Maine Poor 1950 76 127
MESSALONSKEE STR Maine Poor 1950 76 767
TIDEWATER Maine Fair 1950 76 128
SWETT BROOK Maine Fair 1950 76 618
CROOKED RIVER Maine Poor 1950 76 31

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.