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.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| COLD BROOK | Maine | Fair | 1929 | 97 | 430 |
| DECKER BRK | Maine | Fair | 1929 | 97 | 2,270 |
| DYER BROOK | Maine | Fair | 1929 | 97 | 1,308 |
| MILL STREAM | Maine | Poor | 1929 | 97 | 200 |
| FERGUSON STREAM | Maine | Poor | 1929 | 97 | 1,180 |
| HALF MOON STREAM | Maine | Fair | 1929 | 97 | 3,404 |
| MARSH STREAM | Maine | Fair | 1929 | 97 | 704 |
| SEVEN MILE STREAM | Maine | Fair | 1929 | 97 | 3,812 |
| NEQUASSET POND | Maine | Fair | 1929 | 97 | 323 |
| BAKER (PETERSON) BROOK | Maine | Fair | 1929 | 97 | 784 |
| TEMPLE STREAM | Maine | Fair | 1929 | 97 | 19,162 |
| CAPTAIN AMBROSE BEAR STR | Maine | Fair | 1929 | 97 | 2,800 |
| KENDUSKEAG STREAM | Maine | Poor | 1929 | 97 | 11,561 |
| WHITCOMB BROOK | Maine | Fair | 1929 | 97 | 2,270 |
| ANDROSCOGGIN R. W CHANEL | Maine | Poor | 1929 | 97 | 3,509 |
| N BR PRESQUE ISLE STREAM | Maine | Fair | 1929 | 97 | 3,581 |
| TANNERY (BIRD) BROOK | Maine | Poor | 1929 | 97 | 11,655 |
| WHITNEY BROOK | Maine | Poor | 1929 | 97 | 153 |
| STRATTON BROOK | Maine | Fair | 1929 | 97 | 2,521 |
| OSSIPEE RIVER | Maine | Fair | 1929 | 97 | 2,870 |
| MCRR | Maine | Poor | 1930 | 96 | 1,828 |
| STATE OF MAINE RR | Maine | Fair | 1930 | 96 | 110 |
| CANAL | Maine | Fair | 1930 | 96 | 460 |
| SHEPARDS RIVER | Maine | Poor | 1930 | 96 | 240 |
| SALMON FALLS RIVER | Maine | Fair | 1930 | 96 | 530 |
| CARRYING PLACE | Maine | Poor | 1930 | 96 | 9,100 |
| COUSINS RIVER | Maine | Poor | 1930 | 96 | 9,550 |
| MIDDLE RIVER | Maine | Poor | 1930 | 96 | 9,731 |
| ROYAL RIVER | Maine | Poor | 1930 | 96 | 4,910 |
| OTTER BROOK | Maine | Poor | 1930 | 96 | 260 |
| GULLIVER BROOK | Maine | Poor | 1930 | 96 | 300 |
| MATTAGODUS STREAM | Maine | Fair | 1930 | 96 | 226 |
| SEBASTICOOK R (MAIN STR) | Maine | Fair | 1930 | 96 | 400 |
| CARRABASSETT STREAM | Maine | Poor | 1930 | 96 | 1,331 |
| SAINT GEORGE RIVER | Maine | Fair | 1930 | 96 | 4,801 |
| MARTIN STREAM | Maine | Poor | 1930 | 96 | 1,193 |
| TEMPLE STR | Maine | Fair | 1930 | 96 | 1,144 |
| PASSADUMKEAG RIVER | Maine | Fair | 1930 | 96 | 1,722 |
| PATTIE BROOK | Maine | Poor | 1930 | 96 | 2,210 |
| LITTLEFIELD RIVER | Maine | Fair | 1930 | 96 | 12,802 |
| HIGGINS STREAM | Maine | Poor | 1930 | 96 | 550 |
| SEBASTICOOK RIVER | Maine | Fair | 1930 | 96 | 3,860 |
| THATCHER BROOK | Maine | Fair | 1930 | 96 | 2,440 |
| FISH STREAM | Maine | Fair | 1930 | 96 | 41 |
| CROSS CANAL #1 | Maine | Good | 1930 | 96 | 10,496 |
| SQUA PAN STREAM | Maine | Fair | 1930 | 96 | 1,680 |
| GREAT MEADOW STREAM | Maine | Fair | 1930 | 96 | 2,210 |
| GARDINER STREAM | Maine | Fair | 1930 | 96 | 671 |
| OSSIPEE RIVER | Maine | Fair | 1930 | 96 | 500 |
| PISCATAQUIS RIVER | Maine | Poor | 1930 | 96 | 2,296 |
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.