| Title | Washington: Eastbound, State Route 18 Over State Route 516, King County |
|---|---|
| Record ID | 66243 |
| Corporate Creator | United States. Federal Highway Administration |
| Corporate Contributor |
Turner-Fairbank Highway Research Center |
| Publisher | United States. Federal Highway Administration |
| Publication Date | 20000801 |
| Language | English |
| Abstract | The high-performance concrete bridge carrying eastbound State Route 18 traffic over State Route 516 in King County, Washington is a three-span continuous structure, with a center span of 42 m (137 ft) and side spans of 24 m (80 ft). Pretensioned concrete Washington State Department of Transportation W74G girders were used. The bridge deck is 11.6 m (38 ft) wide, carrying two 3.7-m (12-ft) lanes and 1.2-m (4-ft) and 3.0-m (10-ft) shoulders. The bridge is designed for earthquake zone "C" (acceleration coefficient = 0.25 g). The design used the new AASHTO Load and Resistance Factor Design (LRFD) bridge specifications. Using high-strength HPC in conjunction with the 15.2-mm (0.6-in.) strands, two fewer girders per span were required than if conventional concrete and strands had been used. The structure's life will be enhanced because of the durability benefits associated with HPC. |
| Rosap ID | dot:40747 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/40747 |
| TRT Terms | Highway bridges; High performance concrete; Bridge design; Bridges; Compressive strength; Design; Prestressed concrete bridges; Prestressed concrete |
| General Subjects | High-Performance Concrete program |
| Geographical Coverage |
Washington |
| TRIS Online Accession No |
806305 |
| Report Number | FHWA-RD-00-124 |
| Resource type | Brief |
| URL | https://ntlrepository.blob.core.windows.net/lib/66000/66200/66243/FHWA-RD-00-124.pdf |
| Alternative URL | https://www.fhwa.dot.gov/publications/research/infrastructure/structures/00124.pdf |
| Format | |
| Database | NTL Digital Repository |