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
CRYSTAL LAKE OUTLET Maine Fair 1932 94 4,727
CARRIAGE ROAD Maine Good 1932 94 288
MDOT RAILROAD Maine Poor 1933 93
QUICK STREAM Maine Fair 1933 93 629
ELLIS RIVER Maine Fair 1933 93 372
SACO RIVER (N OF E CHAN) Maine Fair 1933 93 14,908
HALFWAY BROOK Maine Poor 1933 93 1,758
HOLLY BROOK Maine Fair 1933 93 2,230
MUD POND INLET Maine Fair 1933 93 1,153
TUNK STREAM Maine Fair 1933 93 999
MEGUNTICOOK RIVER Maine Good 1933 93 4,050
MARTIN STREAM Maine Fair 1933 93 751
W.BR.DAVIS STREAM Maine Fair 1933 93 1,090
CRYSTAL STREAM Maine Poor 1933 93 870
MT ZIRCON BROOK Maine Poor 1933 93 545
DEAD STREAM Maine Fair 1933 93 629
WILSON STREAM Maine Fair 1933 93 2,280
MAIN STR (SEBASTICOOK R) Maine Fair 1933 93 2,083
MACWAHOC STREAM Maine Fair 1933 93 384
15 MILE STREAM Maine Poor 1933 93 525
MESSALONSKEE STREAM Maine Fair 1933 93 4,400
STONY BROOK Maine Fair 1933 93 191
CASCADE STR Maine Poor 1934 92 26
WEST BR CATHANCE RIVER Maine Fair 1934 92 2,243
MARTIN STREAM Maine Poor 1934 92 599
SABATTUS RIVER Maine Fair 1934 92 3,970
CHANDLER RIVER Maine Poor 1934 92 4,513
WEST BR CATHANCE RIVER Maine Fair 1934 92 2,243
DAVIS STREAM Maine Fair 1934 92 778
BOND BROOK Maine Poor 1934 92 13,526
YORK RIVER Maine Fair 1934 92 2,388
CROOKED RIVER Maine Fair 1934 92 1,322
EAST BROOK Maine Fair 1934 92 409
FISH STREAM Maine Fair 1934 92 2,276
NORTH BRANCH DEAD RIVER Maine Fair 1934 92 609
ROYAL RIVER Maine Fair 1934 92 474
THE GURNET (TIDAL PAS.) Maine Good 1934 92 2,930
STEVENS BROOK Maine Fair 1935 91 528
MAINE CENTRAL RAILROAD Maine Fair 1935 91 3,334
W BR KENDUSKEAG Maine Poor 1935 91 71
ALDER STREAM Maine Poor 1935 91 63
PASSAGASSAWAKEAG RIVER Maine Poor 1935 91 420
COLSON STREAM Maine Poor 1935 91 5,459
NARRAGUAGUS RV Maine Poor 1935 91 2,493
SHEEPSCOT RIVER Maine Poor 1935 91 2,241
SHEEPSCOT RIVER Maine Poor 1935 91 29
ALDER STREAM Maine Fair 1935 91 492
MAIN STR (SEBASTICOOK R) Maine Fair 1935 91 362
CROOKED RIVER Maine Fair 1935 91 1,322
M.C.RR Maine Fair 1935 91 13,952

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.