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Whitewood Valley Road Bridge Replacement

LAWRENCE COUNTY, SOUTH DAKOTA 

Whitewood Creek is a mountain stream that flows from its headwaters south of Deadwood to its confluence with the Belle Fourche River northeast of the City of Whitewood. Located in the heart of Lawrence County, this structure crosses the creek near the City. Constructed in 1955, the existing structure was a 186’ five-span continuous concrete slab bridge, and the structure deck showed signs of severe deterioration both on the top surface and underside of the deck due to heavy sand/salt usage during winter driving months. In 2019, the SD Bridge Improvement Grant program slated the bridge for reconstruction. The cost to replace the rapidly deteriorating concrete deck in relation to a total structure replacement was economically beneficial to Lawrence County. The design solution included removing the existing structure and replacing it with a new 176’ three-span pre-stressed girder bridge with a concrete deck. 

Lawrence County hired Brosz Engineering to assemble civil engineering shovel-ready plans to replace the structure, No. 41-212-091. The project is located approximately 0.7 miles east and 0.5 miles north of Whitewood. Brosz provided survey, preliminary design, final design, and construction administration and testing services.

Project Details

YEAR
2019 Design
2020 Construction

CONSTRUCTION VALUE
$1,663,048

Services

Design Engineering &
Construction Engineering
Surveying

Owner Benefits