Movable - Swing bridges
A movable span that rotates horizontally around a central pier. The inventory lists 168 of them, 0.03% of all US bridges.
- Bridges
- 168
- Share of all bridges
- 0.03%
- Poor condition
- 29.2%
- 49 bridges
- Average age
- 71.1 yrs
- Combined length
- 21 mi
- Oldest
- 1850
Movable - Swing bridges by state
| State | Movable - Swing | Share of state's bridges |
|---|---|---|
| Louisiana | 77 | 0.6% |
| California | 15 | 0.06% |
| New York | 12 | 0.07% |
| Florida | 8 | 0.06% |
| Massachusetts | 6 | 0.1% |
| New Jersey | 6 | 0.09% |
| South Carolina | 5 | 0.05% |
| Washington | 5 | 0.06% |
| Virginia | 4 | 0.03% |
| Connecticut | 4 | 0.09% |
| Maine | 3 | 0.1% |
| Michigan | 3 | 0.03% |
| Mississippi | 3 | 0.02% |
| North Carolina | 3 | 0.02% |
| Texas | 3 | 0.01% |
| Illinois | 2 | 0.01% |
| Maryland | 2 | 0.04% |
| Oregon | 2 | 0.02% |
| Delaware | 1 | 0.1% |
| Georgia | 1 | 0.01% |
| Minnesota | 1 | 0.01% |
| Ohio | 1 | 0.00% |
| Rhode Island | 1 | 0.1% |
Materials used
| Steel | 89.9% |
| Steel Continuous | 8.9% |
| Prestressed Concrete | 0.6% |
| Prestressed Concrete Continuous | 0.6% |
When they were built
Busiest
- Third Avenue over Bruckner Blvd. Harlem RFairNew York County, New York · 56,880 vehicles/day
- Willis Avenue over Rfk Bridge to Harlem RivGoodNew York County, New York · 54,042 vehicles/day
- LA3073 over Vermilion RiverFairLafayette Parish, Louisiana · 46,837 vehicles/day
- Madison Avenue over RTE 907P Harlem RiverFairNew York County, New York · 39,068 vehicles/day
- US 6 (drawbridge) over Water Acushnet RiverFairBristol County, Massachusetts · 32,200 vehicles/day
Longest
- US64 over Alligator RiverPoorTyrrell County, North Carolina · 15,059 ft
- US 17 over York River & Route 1208FairYork County, Virginia · 3,757 ft
- Md 231 over Patuxent RiverFairCalvert County, Maryland · 3,348 ft
- FAP 685 Ill 9 over Mississippi RiverPoorHancock County, Illinois · 3,347 ft
- RTE 907 over 87I 87IX1M11022 RTE I87GoodNew York County, New York · 3,275 ft
Oldest
- HWY Main ST over Water Merrimack RiverFairEssex County, Massachusetts · Built 1850
- Route 136 over Saugatuck RiverPoorFairfield County, Connecticut · Built 1870
- HWY East Main ST over Water Merrimack RiverFairEssex County, Massachusetts · Built 1883
- Carroll Street over Gowanus CanalPoorKings County, New York · Built 1889
- RTE 907 over 87I 87IX1M11022 RTE I87GoodNew York County, New York · Built 1895