| OCR Text |
Show Adamsville Bridge Utah Histone Bndge Inventory Data LOCATION structure number: county: highway district: 001003C Beaver 5 feature Int.. rsr:cti!d: .. highway route: milepost: location: ownership: city I vicinity: USGS quadrangle: UTM coordinates' SCORE DESCRIf'TION construction data: builder I co:ltractor: designer: number of spans: length of span: structure type: special features: modifications: narrative: Beaver River c.ounty road none S30, T29S, R8W Beaver COUilty 8.0 miles west of Beaver Ariamsville (15 Minute Series, 1958) 1914 8 Delta Land and Water Company 3 Utah State Road Commission 3 1 1 62' 3 steel, 4-panel, rigid-connected Warren pony truss 4 none o none In 1913 the Rocky Ford Dam (now called the Minersville Dam) was completed, impounding water on the Beaver River south of Adamsville. When the road between Adamsville and Minersville was inundated by the rising lake, the Delta Land and Water Company, owner of the reservoir, agreed to build a new road around the reservoir. The Utah State Road Commission studied several alternative courses for the road that year. After considering several routes through the area, USRC decided to direct the road along the lower toe of the dam and along the reservoir's east side. "The route running around the east side of the reservoir was finally selected, even though this route necessitated the construction of a steel truss bridge over the Beaver River," USRC stated in its biennial report. "The material in this roadway, after being used for a number of years, will consolidate and produce a satisfactol)' road, with the exception of a vel)' few stretches, which will have to be surfaced." The land and water company agreed to build the steel bridge, using a state design. USRC engineers used the drawings for the recently completed truss bridge over the Beaver at Milford as the basis for design of the Adamsville Bridge. Supported by concrete abutments, the structure consisted of a concrete-decked, rigid-connected Warren pony truss with steel angle guardrails. The 62-foot truss was fabricated in 1914 using steel rolled in the Lackawanna steel mills of Pittsburgh and erected for a cost of$I,175.00. Since its completion, the Adamsville Bridge has functioned in place in unaltered condition, although it no longer carries mainline traffic since the re-alignment of State Route 21 . EVALUATION level of significance: regional Integrity - location: good good good good good good good design: setting: material: workmshlp.: feeling: ..soclatlon: 10 2 2 2 2 2 2 2 TOTAL 46 Adamsville Bridge Fraserdesign • evaluation: eligibility: references: The state road commission developed standard plans for steel truss bridges in the 1913-14 bienniwn, four years after its formation. "The standard steel truss bridge is designed with Warren trusses, having mid-panel hangers," USRC stated in its 1913-14 biennial report. "The trusses are braced laterally at the hanger points, and the floor beams are set on top of the lower chord. The floor consists of a uniform slab of reinforced concrete laid flat on the tops of the I-beam stringers, and having a one-inch crown. The slab has an average thickness of7 inches. These are the principal features of the designs, and from the standard data devised we can draw up bridge plans in very short notice for eli! sJ.'lIns ranging frOlh 20 to 100 feet." The Adamsville Bridge was one of II such trusses built in the bienniwn using USRC plans. Se"eral of these mediwn- to longspan structures were subsequently built throughout the state in the 1910s and 1920s, but, through attrition, few have survived intact. The Adamsville Bridge is distinguished among Utah's truss bridges for its wellpresetVed condition and relatively early construction date. It is a significant formative example ofUSRC bridge design. possibly eligible Utah Department ofTransportation, Structure Inventory and Appraisal: Structure Nwnber 001 003C; Utah Department of Transportation, Truss Bridge Rating Sheet: Structure Nwnber I C-3; Original construction drawings by Utah State Road Commission: no Drawing Nwnber, dated - December 1913 - all located at UDOT, Salt Lake City UT; Third Biennial Report ofthe State Road Commission, 1913-14, pages 30, 55-60. Fraserdesign • |
