Channel Beam bridges
C-shaped (channel) concrete beams placed side by side, common on short county road bridges. The inventory lists 16,278 of them, 2.6% of all US bridges.
- Bridges
- 16,278
- Share of all bridges
- 2.6%
- Poor condition
- 11.7%
- 1,910 bridges
- Average age
- 42.4 yrs
- Combined length
- 234 mi
- Oldest
- 1890
Channel Beam bridges by state
| State | Channel Beam | Share of state's bridges |
|---|---|---|
| Mississippi | 4,864 | 29.1% |
| Alabama | 2,239 | 13.8% |
| Arkansas | 2,111 | 16.3% |
| Illinois | 1,520 | 5.6% |
| Tennessee | 614 | 3.0% |
| Georgia | 517 | 3.4% |
| South Carolina | 409 | 4.3% |
| Florida | 389 | 3.0% |
| Iowa | 369 | 1.6% |
| Washington | 327 | 3.8% |
| Indiana | 300 | 1.5% |
| Louisiana | 281 | 2.2% |
| North Dakota | 257 | 6.0% |
| Missouri | 254 | 1.0% |
| Minnesota | 232 | 1.7% |
| South Dakota | 196 | 3.3% |
| Wisconsin | 188 | 1.3% |
| Oregon | 180 | 2.2% |
| North Carolina | 167 | 0.9% |
| Nebraska | 132 | 0.9% |
| Kentucky | 128 | 0.9% |
| Montana | 128 | 2.4% |
| Pennsylvania | 113 | 0.5% |
| West Virginia | 89 | 1.2% |
| Idaho | 50 | 1.1% |
| New Mexico | 48 | 1.2% |
| Wyoming | 47 | 1.5% |
| Oklahoma | 31 | 0.1% |
| Kansas | 20 | 0.08% |
| California | 17 | 0.07% |
| Michigan | 13 | 0.1% |
| Arizona | 11 | 0.1% |
| New York | 10 | 0.06% |
| Connecticut | 9 | 0.2% |
| Maryland | 5 | 0.09% |
| Texas | 4 | 0.01% |
| Vermont | 4 | 0.1% |
| New Jersey | 2 | 0.03% |
| Massachusetts | 1 | 0.02% |
| Rhode Island | 1 | 0.1% |
| Alaska | 1 | 0.06% |
Materials used
| Concrete | 84.5% |
| Prestressed Concrete | 15.0% |
| Concrete Continuous | 0.4% |
| Prestressed Concrete Continuous | 0.1% |
| Steel | 0.0% |
When they were built
Busiest
- County Road 54 over Piney Woods CreekGoodHenry County, Alabama · 300,356 vehicles/day
- E Broadway Blvd over Pantano WashGoodPima County, Arizona · 34,991 vehicles/day
- Avondale Road over Bear CreekFairKing County, Washington · 34,500 vehicles/day
- Campbell Ave over Rillito CreekFairPima County, Arizona · 34,339 vehicles/day
- Stp 7446;SUNNYSIDE over Sand CreekGoodBonneville County, Idaho · 30,000 vehicles/day
Longest
- Ernest Applewhite over Graveline BayFairJackson County, Mississippi · 2,263 ft
- Thornton-Tolarsvil over Fannegusha & Black Crks.GoodHolmes County, Mississippi · 1,737 ft
- Plantation Pointe over Magby CreekFairLowndes County, Mississippi · 1,140 ft
- Wade-Vancleave RD over ReliefFairJackson County, Mississippi · 855 ft
- Grant 14-CR over Hurricane CreekFairGrant County, Arkansas · 806 ft
Oldest
- TR-129 over Apple CreekGoodGreene County, Illinois · Built 1890
- Lrd Bloomingdale R over W Fk Kickapoo RiverFairVernon County, Wisconsin · Built 1891
- TR 0164 over Grindstone CreekFairAdams County, Illinois · Built 1898
- TR 268 over Town CreekGoodMcDonough County, Illinois · Built 1899
- Greene CO Line RD over Little Richland CreekFairGreene County, Indiana · Built 1899