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
OLAMON STREAM Maine Fair 1940 86 1,845
DAVEE BROOK Maine Poor 1940 86 1,035
SEVEN MILE STREAM Maine Fair 1940 86 39
FRENCHS STREAM Maine Fair 1940 86 706
HEMLOCK STREAM Maine Poor 1940 86 267
MEADOW BROOK Maine Poor 1940 86 831
W. BR. DEAD STREAM Maine Poor 1940 86 634
ONE-WAY LOOP ROAD NEAR S Maine Fair 1940 86 1,214
BELGRADE STREAM Maine Fair 1941 85 1,521
INDIAN STREAM/ PD OUTLET Maine Fair 1941 85 1,737
KINGSBURY STREAM Maine Fair 1941 85 72
CARD MILL STREAM Maine Fair 1941 85 616
ALLEN STREAM Maine Poor 1941 85 820
QUATABACOOK LAKE OUTLET Maine Fair 1941 85 2,837
LITTLE COLD RIVER Maine Fair 1941 85 190
WIGGIN STREAM Maine Fair 1941 85 3,454
LEMON STREAM Maine Fair 1941 85 689
NORTH BRANCH MARSH STREA Maine Fair 1941 85 210
BACK RIVER Maine Fair 1941 85 2,180
BLACK STREAM Maine Fair 1941 85 1,523
ROUND POND OUTLET Maine Poor 1941 85 821
HANCOCK BROOK Maine Fair 1941 85 270
BUZZELL BROOK Maine Fair 1941 85 51
CROOKED RIVER Maine Poor 1941 85 2,291
GREAT FARM BROOK Maine Poor 1941 85 276
MATTAGODUS STREAM Maine Poor 1941 85 72
WESSERUNSETT STREAM Maine Fair 1942 84 5,922
ANDROSCOGGIN RIVER CANAL Maine Fair 1942 84 1,264
MILL RIVER Maine Fair 1942 84 3,461
WESTERN LITTLE RIVER Maine Fair 1942 84 63
STEVERNS BROOK Maine Poor 1943 83 350
NE CHANNEL SACO RIVER Maine Fair 1943 83 20,390
ABBOT BROOK Maine Poor 1943 83 268
BOG BROOK Maine Fair 1943 83 902
MEDUXNEKEAG RIVER Maine Poor 1944 82 13,721
LITTLE RIVER Maine Poor 1944 82 7,764
LITTLE RIVER Maine Fair 1944 82 631
PENNAMAQUAN Maine Fair 1944 82 316
CROMWELL BROOK Maine Poor 1945 81 489
BLACKSTONE BROOK Maine Good 1945 81 10
SHEEPSCOT RIVER Maine Fair 1945 81 41
BACK CREEK Maine Poor 1945 81 662
SALMON FALLS RIVER Maine Fair 1945 81 10,810
MAIN STREAM Maine Fair 1945 81 89
MILL STREAM Maine Fair 1945 81 287
FISH STREAM Maine Fair 1945 81 174
KEBO BROOK Maine Fair 1945 81 4,415
PLEASANT POND STREAM Maine Poor 1945 81 180
DAMARISCOTTA LAKE OUTLET Maine Fair 1945 81 1,595
YORK RIVER Maine Fair 1946 80 30,330

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.