Friday, Nov. 6, through Sunday, Nov. 15, 2026
Spearfish drivers will see the biggest change this week: starting Monday, left turns are banned from Old Highway 14 and from northbound North Avenue onto Old Highway 14 at Interstate 90 Exit 10. In Rapid City, Viking Drive is now closed at Haines Avenue, and U.S. Highway 16A remains closed in Keystone.
Interstate 90
I-90 between Exit 17 (U.S. 85 south) and Whitewood, Exit 23, remains one lane with a 65 mph limit and a 16-foot width limit until further notice for ditch grading, shoulder repair and a culvert extension, per SD 511.
I-90 from 1 mile west of Piedmont, Exit 44, to just west of Summerset, Exit 48, remains one lane in each direction until further notice for the Exit 46 reconstruction, with a 65 mph limit that may drop to 45 mph when workers are present and a 16-foot width limit, per SD 511. The overnight eastbound closures there were scheduled to end Thursday, according to the South Dakota Department of Transportation.
Rapid City and Pennington County
U.S. Highway 16A in Keystone remains closed at the S.D. Highway 40 intersection for a bridge replacement, with a 12-foot width limit and a 50-foot length limit until further notice. A detour is provided, according to SDDOT's project page.
Rapid City streets, from the city's road construction page (end dates are estimates):
- Viking Drive is closed at Haines Avenue for sewer repair, with a detour to Bengal Drive, from Thursday, Nov. 5, through Monday, Nov. 30. New.
- North LaCrosse Street has its two northbound right lanes closed from Eglin Street to the I-90 interchange through Wednesday, Nov. 11. New.
- Jackson Boulevard has the southwest outside lane closed from West Main Street to Mountain View Road through Friday, Nov. 13. New.
- Saint Joseph Street: starting Monday, Nov. 9, the north sidewalk between Fourth and Fifth streets closes, with pedestrians detoured to the south side, through Friday, Nov. 20.
- Creek Drive, closed to through traffic from Omaha Street to Saint Patrick Street, and Old Folsom Road, with daytime flaggers, both have estimated end dates of Friday, Nov. 6.
- Saint Patrick Street has its eastbound lane and sidewalk closed between Cambell Street and Ash Avenue through Friday, Nov. 6.
- Addison Avenue has one lane closed through Monday, Nov. 9.
- Corral Drive has its inside lane and the inside turn lane from Sheridan Lake Road closed through Friday, Nov. 13.
- East Saint Charles Street is closed from Sioux Avenue to Riley Avenue, and Sioux Avenue from East Saint Patrick to East Franklin Street, now through Friday, Nov. 20, extended from Oct. 30.
- Unchanged from last week, with the same estimated end dates: South Street closed from 12th Street to West Boulevard (Friday, Nov. 20); Elm Avenue and Fairmont Boulevard intersection closed, with work moving to Maple Avenue (Thursday, Nov. 26); Elmhurst Drive closed to through traffic (Friday, Nov. 27); one lane of Canyon Lake Drive closed from Clifton Street to Minnekahta Drive (Monday, Nov. 30); Post 320 sidewalks closed (Tuesday, Dec. 1); one eastbound lane of West Main Street near Mountain View Road (Friday, Dec. 18); and the Cherry Avenue and East Saint Charles Street intersection (Tuesday, Dec. 22).
Spearfish, Deadwood, Lead and Lawrence County
North Avenue in Spearfish, at I-90 Exit 10, enters its final phase Monday, Nov. 9, SDDOT said. The new loon turnaround opens, and while crews build the northern median, left turns from Old Highway 14 and northbound left turns from North Avenue onto Old Highway 14 are prohibited. SDDOT suggests Exit 8 to reach Old Highway 14; all I-90 ramps stay open. North Avenue remains one lane each way with a 35 mph limit, no passing and a 16-foot width limit until further notice, per SD 511. Completion is set for Friday, Nov. 20; project engineer Zach Kuhn, 605-892-2872.
U.S. Highway 14A at Cheyenne Crossing, from the U.S. 85 junction to a half mile east, is still one lane under temporary signals for a culvert replacement on Ice Box Creek, with delays of about 10 minutes and a 12-foot width limit until further notice, per SD 511.
Custer, Hill City and Custer County
U.S. Highway 16A and S.D. Highway 87 in Custer State Park have curve-straightening work that began Tuesday, Nov. 3, SDDOT said: U.S. 16A from mile marker 45.6 to 45.9, about a half mile south of S. Playhouse Road, and S.D. 87 from mile marker 57.2 to 57.5, about a half mile south of U.S. 16A. Expect flaggers, a pilot car and delays up to 10 minutes during working hours. Completion is set for Friday, July 2, 2027; project engineer Montana Rivard, 605-981-5089.
Hot Springs and Fall River County
U.S. Highway 385 in Hot Springs, 1 to 1.5 miles north of the U.S. 18 West junction, has a lane shift for a city bridge project and no vehicles wider than 12 feet until further notice, per SD 511.
S.D. Highway 79 north of Hot Springs, from the U.S. 18 and U.S. 385 junction east of town to 7.25 miles north, has northbound pavement repair with one lane, no passing and a 16-foot width limit Monday through Saturday from 6 a.m. to 5 p.m. until further notice, per SD 511.
Done or no longer listed: I-90 near Wall; U.S. 16B at Dan Christy Lane; U.S. 14A west of Deadwood; S.D. 471 south of Edgemont; 12th Street in Rapid City.
Later: SDDOT holds an open house Tuesday, Nov. 17, at 5:30 p.m. at the New Underwood Community Center on proposed I-90 reconstruction between New Underwood and Wasta; comments are due Tuesday, Dec. 8. New signals at Spearfish Exit 10 are expected in January 2027. U.S. 16A in Keystone is scheduled to reopen by April 23, 2027, and the Exit 46 work at Piedmont runs through December 2028.
For live conditions, check sd511.org or dial 511, and for local streets, check with your city or county.
