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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
PENNESEEWASSEE STREAM Maine Fair 1921 105 520
KENDUSKEAG STREAM Maine Fair 1921 105 62
SHEEPSCOT RIVER Maine Fair 1921 105 883
INDIAN RIVER Maine Fair 1921 105 2,051
DENNYS RIVER Maine Fair 1921 105 252
CARIBOU STREAM Maine Poor 1921 105 1,170
DICKEY BROOK Maine Fair 1921 105 516
PRESTILE STREAM Maine Fair 1921 105 420
ANDROSCOGGIN RIVER Maine Poor 1921 105 114
GREAT BROOK Maine Fair 1921 105 103
25 MILE STREAM Maine Poor 1921 105 1,263
SALMON FALLS RIVER Maine Poor 1922 104 445
COTTLE BROOK Maine Fair 1922 104 1,471
E BR MATTAWAMKEAG RIVER Maine Fair 1922 104 1,630
CARIBOU STREAM Maine Fair 1922 104 7,670
PLEASANT RIVER Maine Fair 1922 104 6,340
COLLYER BROOK Maine Poor 1922 104 10,140
PLEASANT POND STREAM Maine Poor 1922 104 196
COCKRANE LAKE OUTLET Maine Fair 1922 104 1,400
N BR PRESQUE ISLE STREAM Maine Poor 1922 104 2,830
DEAD R Maine Poor 1922 104 1,017
MILL BROOK Maine Fair 1922 104 4,216
SEBOEIS STREAM Maine Fair 1922 104 154
MILL STREAM Maine Fair 1923 103 25
LITTLE RIVERS Maine Poor 1923 103 30
ANDREWS BROOK Maine Fair 1923 103 5,707
FILLIBOWN BROOK Maine Poor 1923 103 90
LEMON STREAM Maine Poor 1923 103 659
HARVEY BROOK Maine Poor 1923 103 3,510
MILL STREAM Maine Poor 1923 103 9,693
UNION RIVER Maine Poor 1923 103 16,449
MATTASEUNK STREAM Maine Poor 1923 103 41
MOOSE POND BROOK Maine Fair 1923 103 6,718
HIGGINS BROOK Maine Fair 1923 103 580
CARRABASSET RIVER Maine Poor 1923 103 653
LEMON STREAM Maine Fair 1923 103 659
LITTLE OSIPEE RV Maine Fair 1923 103 108
ST GEORGE RIVER Maine Fair 1923 103 80
MILL CREEK Maine Fair 1924 102 16,917
MOOSE BROOK Maine Fair 1924 102 2,046
THREE BROOKS Maine Fair 1924 102 262
WESSERUNSETT STREAM Maine Fair 1924 102 3,250
SEBEC RIVER Maine Fair 1924 102 6,037
Meadow Brook Maine Fair 1924 102 3,156
NARRAGUAGUS RIVER Maine Fair 1924 102 705
BOBBIN MILL BROOK Maine Fair 1925 101 639
OVERFLOW BR SEBASTICOOK Maine Poor 1925 101 210
VIOLET STR Maine Fair 1925 101 4,957
OLAMON STREAM Maine Poor 1925 101 322
SALMON BROOK Maine Fair 1925 101 2,000

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