SRST Transportation Planning & Tribal Roads

04/12/2026

On Monday, April 13, 2026, a project is scheduled to begin on U.S. Highway 12 from Mobridge west approximately 15 miles and on S.D. Highway 1806 both north and south of Highway 12. The Highway 12 project will primarily involve pipe and guardrail corner improvements on the shoulders of the highway.

On Highway 1806 north of Highway 12, work will include mainline pipe installations and short grading sections. Traffic will be reduced to one-half width in these work zones during daytime hours, with flaggers and a pilot car guiding the traveling public.

On Highway 1806 south of Highway 12, work will focus on a slide repair. Traffic will be controlled with stop signs through the work zone. At times during the daytime, flaggers and a pilot car will guide the traveling public.

Commuters should be alert through the entire work zone for workers adjacent to moving traffic, construction vehicles entering and exiting the work zones, and changing traffic patterns.

View the full press release: https://dot.sd.gov/inside-sddot/media/press-releases/mobridge-area-project-scheduled-to-begin-on-us-highway-12-and-sd-highway-1806/

Featured Project Information:
Find additional information, construction timelines, and project maps on the SDDOT website at https://dot.sd.gov/mobridge1806.

For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.

03/25/2026

Standing Rock has been awarded approximately $1.2 million through the Federal Highway Administration Tribal Transportation Safety Fund to address safety concerns along BIA 3400 near Little Eagle.

This project focuses on a curved section near the school and community that has presented ongoing safety concerns. Improvements will include roadway realignment, drainage upgrades, and design updates to meet current safety standards and reduce crash risks.

For general awareness on roadway costs:

• Maintaining 1 mile of gravel road typically costs $5,000–$15,000 per year
• Rebuilding a gravel road can cost between $80,000–$200,000 per mile
• Constructing 1 mile of new asphalt road typically ranges from $1.2 million–$3 million

These projects require significant planning, engineering, and construction to ensure long-term safety and durability for the community.

Project Timeline:
• Planning & environmental work: Complete by Fall 2026
• Construction start: Spring/Summer 2027
• Project completion: End of 2027
• Fully open to the public: January 2028

This project represents an important step toward improving roadway safety and conditions for the Little Eagle community.

The Federal Highway Administration awarded roughly $2 million to the Standing Rock Sioux and Spirit Lake tribes. It will be used to realign a roadway and improve the accessibility of a walkway. MORE: https://www.kfyrtv.com/2026/03/23/two-north-dakota-tribal-nations-receive-grant-money-road-walkway-improvements/

03/16/2026

⚠️ Travel Advisory – Standing Rock Area

Drivers should use caution this morning when traveling across the Standing Rock Reservation and surrounding highways.

Current road condition reports from North Dakota Roads and South Dakota 511 indicate snow-covered and slippery road conditions.

• Slow down and allow extra stopping distance
• Keep headlights on for visibility
• Watch for drifting snow across roadways
• Travel safely and always let someone know your route and destination.

03/13/2026

Winter Storm Warning/Advisory – Standing Rock Area

The National Weather Service has upgraded the Winter Storm Watch to a Winter Storm Warning/Advisory for our region beginning Saturday and continuing into early Sunday morning.

Current forecasts indicate the highest snowfall totals will occur along the South Dakota border. Snowfall amounts may reach moderate to heavy totals in some areas, and strong winds may create blowing snow that significantly reduces visibility.

Timing:
Late Saturday morning through early Sunday morning.

Potential Impacts:
• Snow-covered and slippery roads
• Reduced visibility due to blowing snow
• Difficult travel conditions, especially Saturday afternoon and evening

Residents are encouraged to:
• Monitor weather updates from the National Weather Service and local news
• Use caution when traveling and allow extra time if driving
• Prepare for changing weather conditions throughout the weekend

Standing Rock Tribal Roads will continue monitoring the storm.
Please stay safe and plan accordingly.

02/28/2026

⚠️ Public Safety Notice – Railroad Hazard ⚠️

Mclaughlin, SD

We have identified a large bolt protruding near the railroad tracks in the area shown below. This poses a potential safety hazard to pedestrians, vehicles near crossings, and railroad operations.

This issue has been reported to BNSF for immediate attention and repair.

Please avoid the area and do not walk along or near the tracks until it has been corrected. Railroad property is dangerous even under normal conditions, and this added hazard increases risk.

02/01/2026

🚨 Road Conditions Update as of this evening:

South Dakota side of the Reservation
• Roads are reporting frost, ice, and slick conditions.
• Some routes may appear passable but remain slippery, especially after dark.
• Use caution on open stretches, bridges, hills, and curves.

North Dakota side of the Reservation
• ND Hwy 24 and ND Hwy 6 are reporting ice and compacted snow.
• Scattered drifting is occurring, particularly in rural and open areas.

Travel Advisory
• Avoid unnecessary travel if possible.
• If travel is necessary, reduce speed, increase following distance, and be prepared for rapidly changing conditions. Please let someone know your destination.
• Conditions may worsen overnight with falling temperatures and wind.mea

01/21/2026

We've had calls about whiteout conditions on Highway 12 west of the river. There is now no travel advised in that area.

Mobridge-Pollock No School
Selby Area No School

01/21/2026

*Photo north of Mclaughlin by buffalo pasture*

⚠️ Travel Advisory ⚠️

There is little to no visibility in some areas. Blowing snow and whiteout conditions are making travel extremely dangerous.

Please do not travel unless it is absolutely necessary this morning. If you must be out, slow down, use headlights, and give yourself plenty of space.

If you do need to travel, please let someone know your destination and expected arrival time before leaving.

Stay safe and check on neighbors if you can.

01/16/2026

🚨 NO TRAVEL ADVISED FOR STANDING ROCK 🚨

A High Wind Warning remains in effect through this evening (Friday) until 6 PM CST / 5 PM MST for our area.

🌬️ What to expect:
• Northwest winds 35–45 mph
• Gusts up to 65 mph
• Blowing snow with reduced visibility at times
• Slippery road conditions, especially in open areas

🚧 Travel Impacts:
• Travel may be difficult, especially for high-profile vehicles
• Conditions can change rapidly with drifting snow

⚠️ Please use caution if travel is necessary:
• Slow down and increase following distance
• Secure loads and trailers
• Check road conditions before traveling
• Be prepared for sudden whiteout conditions

We will continue to monitor conditions and provide updates as needed.
Stay safe and plan ahead.

12/26/2025

🚨 URGENT ROAD CONDITIONS UPDATE 🚨
Sioux County, ND & Corson County, SD

⚠️ Dense fog and icy conditions are impacting travel this evening and overnight.

• Winter Weather Advisory through late tonight
• Dense Fog Advisory through Friday morning
• Freezing rain / light glaze ice reported
• Visibility may drop to ¼ mile or less

🚧 Roads, bridges, and sidewalks may be extremely slippery.

🚗 Avoid unnecessary travel if possible.
If you must travel: slow down, use hazard lights, and increase following distance.

📍 Check conditions before traveling:
• ND Roads: travel.dot.nd.gov
• SD 511: sd511.org or dial 511

12/18/2025

Some power outage reports as of 7am