Project: U.S. 16 (Hell Canyon) Black Hills
Motorists are encouraged to visit www.safetravelusa.com or dial 511 for current information about South Dakota and Wyoming Road Construction and Conditions.
US 16 between Custer, SD and Newcastle, WY is currently under construction in two separate locations.
In South Dakota the project is complete with the exception of permanent signing within the limits of Jewel Cave National Monument, 11 miles west of Custer and 20 miles east of Newcastle, WY. Signing should be completd by the first part of October. There will be no more significant impacts to traffic.
In Wyoming, for 8.5 miles between Newcastle and the South Dakota border, the highway is being widened. Base operations are ongoing. Paving should start the week of September 22. The speed limit through the project is 45 mph. There are numerous flaggers throughout the project. Driving surfaces are gravel and rough. The Stockade Beaver Creek bridge is restricted to single lane traffic. There is an 11-foot width restriction in effect for the entire project. Travelers should allow an additional 20 minutes to get through the project.