I-29 - Exit 71 InterchangeINTERCHANGE MODIFICATION STUDY
Due to anticipated growth and increasing traffic volumes in the southern Sioux Falls metropolitan area, the SDDOT plans to reconstruct the existing I-29 Exit 71 interchange as part of an anticipated 2028 construction project. Three interchange types have been carried forward from the I-29 Exit 62 to 73 Corridor Study completed in 2018:
The planned 2028 project will also reconstruct I-29 mainline to a 6-lane section (3 lanes in each direction) between I-29 Exit 71 and 73. The southern limits of this 6-lane reconstruction will be determined as part of the study.
The study is a collaborative effort between the South Dakota Department of Transportation (SDDOT), Federal Highway Administration (FHWA), Sioux Falls Metropolitan Planning Organization (MPO), Lincoln County, City of Tea, and City of Harrisburg.
The first step of the process towards construction is the interchange and environmental study, culminating with an Interchange Modification Justification Report (IMJR) and environmental document for SDDOT to submit to FHWA. Following concurrence of the proposed modifications by FHWA, the project will move into design.
Click to enlarge the Study Area Map below.
Check back for upcoming public information meetings and open house events.
The comment period for this meeting has ended.
VIEW ONLINE MEETING MATERIALS
Click to enlarge
Your message has been sent!