Truss - Thru bridges
A truss that rises above the roadway, with traffic passing through the structure. The inventory lists 6,920 of them, 1.1% of all US bridges.
- Bridges
- 6,920
- Share of all bridges
- 1.1%
- Poor condition
- 39.0%
- 2,702 bridges
- Average age
- 82.2 yrs
- Combined length
- 390 mi
- Oldest
- 1824
Truss - Thru bridges by state
| State | Truss - Thru | Share of state's bridges |
|---|---|---|
| Ohio | 912 | 3.4% |
| Iowa | 642 | 2.7% |
| Nebraska | 574 | 3.7% |
| New York | 446 | 2.5% |
| Pennsylvania | 415 | 1.8% |
| Missouri | 327 | 1.3% |
| Indiana | 283 | 1.4% |
| California | 229 | 0.9% |
| Oklahoma | 205 | 0.9% |
| New Jersey | 172 | 2.5% |
| Washington | 158 | 1.9% |
| Kansas | 153 | 0.6% |
| West Virginia | 153 | 2.1% |
| Maryland | 145 | 2.6% |
| North Dakota | 141 | 3.3% |
| Illinois | 138 | 0.5% |
| Oregon | 135 | 1.6% |
| Vermont | 133 | 4.6% |
| Virginia | 110 | 0.8% |
| Montana | 108 | 2.1% |
| Texas | 107 | 0.2% |
| Kentucky | 94 | 0.6% |
| Massachusetts | 86 | 1.6% |
| Idaho | 80 | 1.7% |
| Alabama | 80 | 0.5% |
| South Dakota | 79 | 1.3% |
| Colorado | 59 | 0.7% |
| Arkansas | 58 | 0.4% |
| Alaska | 55 | 3.3% |
| New Hampshire | 50 | 2.0% |
| Florida | 49 | 0.4% |
| Michigan | 46 | 0.4% |
| Minnesota | 42 | 0.3% |
| Georgia | 40 | 0.3% |
| Louisiana | 38 | 0.3% |
| Tennessee | 38 | 0.2% |
| Wyoming | 37 | 1.2% |
| Wisconsin | 36 | 0.2% |
| South Carolina | 34 | 0.4% |
| Maine | 33 | 1.3% |
| Mississippi | 30 | 0.2% |
| New Mexico | 27 | 0.7% |
| North Carolina | 27 | 0.1% |
| Connecticut | 27 | 0.6% |
| Arizona | 26 | 0.3% |
| Puerto Rico | 16 | 0.7% |
| Hawaii | 14 | 1.2% |
| Utah | 13 | 0.4% |
| Rhode Island | 10 | 1.3% |
| Delaware | 7 | 0.8% |
| Nevada | 3 | 0.1% |
Materials used
| Steel | 89.3% |
| Wood or Timber | 5.2% |
| Steel Continuous | 3.3% |
| Aluminum, Wrought Iron, or Cast Iron | 2.0% |
| Concrete | 0.1% |
| Other | 0.0% |
When they were built
Busiest
- I-95DOUBLE Decker over Schuylkill River RR RoadFairPhiladelphia County, Pennsylvania · 204,962 vehicles/day
- I0010 over Mississippi RiverFairEast Baton Rouge Parish, Louisiana · 197,070 vehicles/day
- Ir 71 over Ohio River Brent SpenceFairHamilton County, Ohio · 163,386 vehicles/day
- US0090-B over Mississippi RiverPoorOrleans Parish, Louisiana · 154,311 vehicles/day
- I-75 over Ohio RiverFairKenton County, Kentucky · 132,112 vehicles/day
Longest
- Interstate 580 over San Pablo BayFairContra Costa County, California · 21,345 ft
- I-526 over Cooper RiverFairBerkeley County, South Carolina · 16,450 ft
- US 1&9 over Hcksck & Pssc Rvrs RdsPoorHudson County, New Jersey · 14,907 ft
- US 322 over Delaware RiverFairGloucester County, New Jersey · 13,915 ft
- US 322 over Delaware RiverFairBradford County, Pennsylvania · 13,915 ft
Oldest
- C3010 over Muddy BranchFairAddison County, Vermont · Built 1824
- Rishel Cov. Brdg. over Chillisquaque CreekFairNorthumberland County, Pennsylvania · Built 1830
- Arlington Blvd over Mahoning River E BranchFairTrumbull County, Ohio · Built 1831
- Main Street over Ashuelot RiverFairCheshire County, New Hampshire · Built 1832
- West Bath Road over Ammonoosuc R Nhrr(abd)FairGrafton County, New Hampshire · Built 1832