Historic Bridges in Maryland
968 bridges built before 1951 in Maryland still in service today.
Bridges Built Before 1951
The United States has 968 bridges in Maryland 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 |
|---|---|---|---|---|---|
| PATUXENT RIVER | Maryland | Fair | 1928 | 98 | 12,871 |
| NORWICH CREEK | Maryland | Fair | 1928 | 98 | 1,164 |
| BR OF TUCKAHOE CREEK | Maryland | Fair | 1928 | 98 | 192 |
| WICOMICO RIVER | Maryland | Fair | 1928 | 98 | 12,662 |
| WMSRR | Maryland | Good | 1928 | 98 | 3,445 |
| DEAD RUN | Maryland | Fair | 1928 | 98 | 7,980 |
| HERRING RUN | Maryland | Fair | 1928 | 98 | 2,933 |
| AMTRAK | Maryland | Fair | 1928 | 98 | 17,889 |
| TOMS CREEK | Maryland | Good | 1928 | 98 | 263 |
| HUNTING CREEK | Maryland | Poor | 1928 | 98 | 9,402 |
| BROAD CREEK | Maryland | Fair | 1928 | 98 | 161 |
| TRIB TO CHESTER RIVER | Maryland | Poor | 1928 | 98 | 265 |
| E. BRANCH OF WICOMICO RI | Maryland | Fair | 1928 | 98 | 12,025 |
| JENNINGS RUN | Maryland | Fair | 1929 | 97 | 2,290 |
| MILL RUN | Maryland | Fair | 1929 | 97 | 7,111 |
| TRIB TO NORTH BR POTOMAC | Maryland | Fair | 1929 | 97 | 7,111 |
| MCGILL RUN | Maryland | Fair | 1929 | 97 | 2,991 |
| GREENE BRANCH | Maryland | Fair | 1929 | 97 | 12,712 |
| GUNPOWDER FALLS | Maryland | Fair | 1929 | 97 | 7,982 |
| HALL CREEK | Maryland | Fair | 1929 | 97 | 16,982 |
| BR OF GUNPOWDER FALLS | Maryland | Fair | 1929 | 97 | 3,322 |
| BIG PIPE CREEK | Maryland | Fair | 1929 | 97 | 1,662 |
| ZEKIAH SWAMP | Maryland | Fair | 1929 | 97 | 12,432 |
| ZEKIAH SWAMP | Maryland | Fair | 1929 | 97 | 12,432 |
| WARDS RUN | Maryland | Fair | 1929 | 97 | 3,204 |
| BR OF MATTAWOMAN CREEK | Maryland | Fair | 1929 | 97 | 12,302 |
| PORT TOBACCO CREEK | Maryland | Fair | 1929 | 97 | 12,302 |
| ROCKY FOUNTAIN RUN | Maryland | Fair | 1929 | 97 | 6,713 |
| BEALMEAR BRANCH | Maryland | Fair | 1929 | 97 | 35,932 |
| DEEP RUN | Maryland | Fair | 1929 | 97 | 29,180 |
| DORSEY RUN | Maryland | Fair | 1929 | 97 | 21,992 |
| BRANCH OF DORSEY RUN | Maryland | Fair | 1929 | 97 | 21,992 |
| HAMMOND BRANCH | Maryland | Fair | 1929 | 97 | 36,052 |
| SWAN CREEK | Maryland | Fair | 1929 | 97 | 780 |
| SWAN CREEK | Maryland | Fair | 1929 | 97 | 780 |
| MILL POND CREEK | Maryland | Fair | 1929 | 97 | 610 |
| HAWLINGS RIVER | Maryland | Fair | 1929 | 97 | 7,660 |
| BRANCH OF ROCK CREEK | Maryland | Fair | 1929 | 97 | 26,931 |
| COLLINGTON BRANCH | Maryland | Fair | 1929 | 97 | 2,180 |
| BR OF WYE RIVER | Maryland | Fair | 1929 | 97 | 690 |
| ST CLEMENTS CREEK | Maryland | Fair | 1929 | 97 | 6,450 |
| NELSONS RUN | Maryland | Fair | 1929 | 97 | 1,791 |
| BURROUGHS RUN | Maryland | Fair | 1929 | 97 | 1,791 |
| LOCUST RUN | Maryland | Fair | 1929 | 97 | 2,371 |
| CSXT RAILROAD | Maryland | Poor | 1929 | 97 | 110 |
| STEMMERS RUN | Maryland | Fair | 1929 | 97 | 1,700 |
| DOGWOOD RUN | Maryland | Poor | 1929 | 97 | 2,370 |
| HERRING RUN | Maryland | Fair | 1929 | 97 | 16,151 |
| CSX | Maryland | Poor | 1929 | 97 | 28,030 |
| BASIN RUN | Maryland | Good | 1929 | 97 | 938 |
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.