Infrastructure & Transportation

2nd Ave Grant County Bridge

Bridge steel detailing driven by elevation, camber and connection accuracy.

LocationBig Stone City, South Dakota
Client and FabricatorTrueNorth Steel
Structural SteelApproximately 250 tons

Project overview

Structural steel detailing for a 224-foot bridge in Big Stone City.

The 2nd Avenue Grant County Bridge is located between Tioga Street and Walnut Street in Big Stone City, South Dakota.

The 224-foot steel plate girder bridge incorporates approximately 250 tons of structural steel. Working for TrueNorth Steel, Anatomic fully modeled and detailed the bridge structure using Tekla Structures.

The detailing required careful development of elevation layouts and bridge camber, along with precise representation of welded and bolted connections.

Overall structural steel model for 2nd Ave Grant County Bridge Approx. 250 Tons detailed Enlarge view
Overall structural steel model for 2nd Ave Grant County Bridge

Technical complexity

Establishing accurate elevations and camber along the full bridge length.

01

Camber over a 224-foot length

The bridge required precise elevation layouts and camber control throughout its length to establish the correct girder geometry.

02

Connection accuracy within the bridge profile

Welded and bolted connections had to be modeled and detailed in relation to the bridge geometry, with accurate representation in fabrication drawings.

03

Fabricator-specific drawing output

TrueNorth Steel’s specialized drawing requirements called for customized documentation developed from the Tekla Structures model.

Fabrication documentation

Drawing output adapted to the fabricator’s requirements.

The complete bridge structure was modeled in Tekla Structures, providing a coordinated basis for fabrication and erection drawings.

The team adapted the drawing content and presentation to meet TrueNorth Steel’s specific requirements while maintaining consistency with the detailed bridge model.