News Summary
The SC Highway 290 bridge over I-85 in Duncan will be closed for several days due to construction of a diverging diamond interchange. Originally set for May 2, the closure has been postponed due to weather conditions. The project aims to alleviate congestion and improve traffic flow between Spartanburg and Greenville, with new traffic patterns and detours introduced for drivers. This interchange represents the third of its kind in South Carolina, reflecting the area’s growth and the need for efficient traffic solutions.
Duncan, South Carolina: SC Highway 290 Bridge Over I-85 to Close for Diverging Diamond Interchange Construction
The SC Highway 290 bridge over Interstate 85 in Duncan will be closed for several days as part of a construction project for a diverging diamond interchange. The closure, initially scheduled to begin on May 2 at 7 p.m., has been postponed due to anticipated rain, which is necessary for completing the road paving work.
The South Carolina Department of Transportation (SCDOT) is working to finalize a major construction effort at this location aimed at alleviating congestion. The project has been in development for about a year longer than initially planned, but it is expected to enhance traffic flow in this busy corridor between Spartanburg and Greenville.
Details of the Interchange Project
The new diverging diamond interchange design is intended to improve vehicle movement through a high-traffic area. Traffic planners have noted that diverging diamond interchanges can reduce congestion and minimize the chances of accidents by allowing vehicles to switch sides of the road before making turns. This design will require some drivers to briefly travel on the left side of the road before returning to the right.
During the upcoming closure of the bridge, motorists will need to adapt to new traffic patterns. SCDOT will install detour signs to guide drivers around the affected area. The work on the bridge itself will involve final pavement markings and adjustments to traffic signals to ensure improved operations once the new interchange opens.
Impact and Precautions
As this construction project takes place in a rapidly developing area of western Spartanburg County, it is vital for drivers to remain vigilant and adhere to posted detour signs during the bridge closure. Motorists are urged to exercise caution as they navigate through the detours and new traffic configurations.
Project Background
The diverging diamond interchange on Highway 290 represents the third of its kind to be constructed in South Carolina. Such interchanges are becoming increasingly popular as they offer efficient solutions for traffic-heavy intersections. The improvement at this site is particularly crucial given the area’s growth, and it aims to keep pace with the rising volume of vehicles traveling through it.
Further details regarding the operations of the diverging diamond intersection will be available on the SCDOT project webpage. This resource can provide drivers with a better understanding of what to expect once the interchange opens and how to navigate the new patterns safely.
Deeper Dive: News & Info About This Topic
HERE Resources
New Diverging Diamond Interchange Planned for Duncan
Additional Resources
- GoUpstate: Bridge Closure at SC Highway 290
- Greenville Journal: Bridge Over I-85 in Duncan
- Independent Mail: SC Highway 290 Bridge Over I-85
- WSPA: Grocery Store Under Construction in Duncan
- Greenville Online: South Carolina’s Third Diverging Diamond Interchange
- Wikipedia: Diverging Diamond Interchange
- Google Search: SC Highway 290 construction news
- Google Scholar: Diverging diamond interchanges
- Encyclopedia Britannica: Traffic Interchange
- Google News: Duncan SC construction
Author: STAFF HERE SPARTANBURG
The SPARTANBURG STAFF WRITER represents the experienced team at HERESpartanburg.com, your go-to source for actionable local news and information in Spartanburg, Spartanburg County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Spartanburg International Festival, Spartanburg ArtWalk, and motorsport events at Spartanburg Speedway. Our coverage extends to key organizations like the Spartanburg Area Chamber of Commerce and the Spartanburg Regional Healthcare System Foundation, plus leading businesses in manufacturing and textiles that power the local economy such as BMW Manufacturing and Milliken & Company. As part of the broader HERE network, including HEREAiken.com, HEREBeaufort.com, HEREChapin.com, HERECharleston.com, HEREClinton.com, HEREColumbia.com, HEREGeorgetown.com, HEREGreenwood.com, HEREGreenville.com, HEREHiltonHead.com, HEREIrmo.com, HEREMyrtleBeach.com, HERENewberry.com, HERERockHill.com, and HERESpartanburg.com, we provide comprehensive, credible insights into South Carolina's dynamic landscape.
