Project Details

Banner's role on the 20th Street S Interchange project included assisting with the design and development of construction plans and overseeing construction operations for a $15M interchange connecting the City of Brookings from West to East at 20th Street S, as well as adding access for ingress and egress to Interstate 29. The new interchange required mass earth moving of approximately 350,000 cubic yards of borrow embankment material to construct grade separation and tie the new 1-mile of roadway into a 260' long two-span pre-stressed concrete girder bridge. Along with the earth moving and bridge construction, the project included a significant amount of pipe culvert and storm sewer installation for the conveyance of drainage, as well as installation of traffic signals, roadway lighting, roadway surfacing, addition of a shared use path, fencing, signage, and striping.

On the front end of the project, Banner participated in environmental compliance efforts during planning and performed hydrologic and hydraulic studies of the project area to determine how construction of an interchange at that location would impact local natural drainage and floodplain levels. Banner participated in project meetings and inspections and led efforts to produce the Traffic Control, Erosion Control, and Surfacing Plans, as well as performing urban storm sewer modeling and recommending pipe, inlet, and culvert sizing. Banner led the Utility Coordination meeting efforts and provided the survey support for ROW planning, easement exhibits, and platting documents.

Banner managed the project's construction as a consultant to the SD DOT. Banner's role comprised full-time oversight of construction activities, as well as management of additional technicians specifically trained for bridge construction and materials testing on the project. Banner worked with the SD DOT and the design team to evaluate and reach solutions for various items throughout construction that required field adjustments. In addition to having staff on site full-time, Banner facilitated project progress meetings and carried out administrative duties under the construction contract, including administering progress reports and pay applications for the Owner's review, formulating Change Order documents, handling Specification deviations, and preparing project pre- and post-construction paperwork.