Pennington County Highway Department

08/13/2026

https://www.facebook.com/share/p/1DMGuYgB32/?mibextid=wwXIfr

Join us for the Pennington County Road and Rescue Experience!

The Pennington County Highway Department is hosting its third annual Road and Rescue Experience on Thursday, September 10 from 4–7 PM at 3601 Cambell Street in Rapid City.

This free, family-friendly event is your chance to explore the heavy equipment and emergency vehicles used to keep our communities safe and connected. Kids and adults alike can climb into the driver's seat, meet the crews, and learn about the essential work these teams do every day.

You'll see equipment and personnel from:
- Pennington County Highway Department
- Pennington County Sheriff's Office
- Pennington County Search and Rescue
- Local fire departments

Food trucks will be on-site, and no registration is required. Bring the whole family and experience a behind-the-scenes look at the people and machinery that serve Pennington County!

More Info 👉 https://www.pennco.org/services/highway/road_rescue_experience.php

08/07/2026

August 7, 2026

CHIP SEAL PROJECT

Beginning Monday, August 17, 2026, Pennington County will begin chip seal work on various roads around the Rapid City area as shown on the attached maps. Weather permitting, the project is anticipated to be completed September 2, 2026.

Work will be conducted Monday through Thursday, from approximately 6:00 am to 4:30 pm. Motorists should expect temporary traffic delays and are encouraged to use caution when traveling through active work zones. Please follow all posted signs and directions from construction personnel.

If you have any questions, please contact the Pennington County Highway Department at (605) 394-2166.

08/07/2026

August 6, 2026

225TH STREET CLOSURE EXTENSION

225th Street between Dyess Avenue and North Elk Vale Road will remain closed to through traffic for road work through Monday, August 10, 2026.

This closure will be detailed on the Pennington County Public Safety Hub map which can be found at www.pennco.org/publicsafetyhub.

If you have any questions, please contact the Pennington County Highway Department at (605) 394-2166.

07/30/2026

July 30, 2026

OLD FOLSOM ROAD CLOSURE

Old Folsom Road between Antelope Creek Road and Lower Spring Creek Road may be closed for road work beginning as early as Thursday, August 6, 2026, through Tuesday, August 11, 2026. The work schedule is tentative and subject to weather and contractor scheduling.

This closure will be detailed on the Pennington County Public Safety Hub map which can be found at www.pennco.org/publicsafetyhub.

If you have any questions, please contact the Pennington County Highway Department at (605) 394-2166.

07/28/2026

***UPDATE***

July 30, 2026

225TH STREET CLOSURE

225th Street between Dyess Avenue and North Elk Vale Road will be closed for road work Tuesday, August 4, 2026 through Thursday, August 6, 2026.

This closure will be detailed on the Pennington County Public Safety Hub map which can be found at www.pennco.org/publicsafetyhub.

If you have any questions, please contact the Pennington County Highway Department at (605) 394-2166.

07/27/2026

🚧 ROAD WORK UPDATE – RAPID VALLEY CHIP SEAL PROJECT CONTINUES 🚧
As the chip seal project continues in the Rapid Valley area, some roads may appear to be finished. However, there is still one final step before the project is complete.
Beginning Wednesday, July 29, crews will begin applying the fog seal. This protective treatment is applied over the chip seal and gives the roadway its finished black appearance while helping extend the life of the road.
🚗 Please continue to keep all vehicles, trailers, campers, and other equipment off the roadway until all work has been completed. Vehicles left on the street may be towed at the owner's expense if necessary for crews to safely complete the project.
Thank you for your continued patience and cooperation as we complete these important road improvements.

07/18/2026

🚧 REMINDER: CHIP SEAL ROAD WORK BEGINS MONDAY, JULY 20 🚧

This is a friendly reminder that Simon Contractors will begin chip sealing various roads in the Rapid Valley area this Monday, July 20.

If your street is marked in red on the attached map, please make plans to remove all vehicles, trailers, campers, and other equipment from the roadway before 7:00 a.m. Monday morning.

🚨 Vehicles left on the roadway during the project will be towed at the owner's expense to allow crews to safely complete the work.

📬 Residents on affected roads should have received a notice from Simon Contractors, and crews have also been visiting neighborhoods to notify residents in person.

The project is expected to continue through August 7, with work taking place Monday through Friday from 7:00 a.m. to 6:00 p.m.

Thank you for your patience and cooperation as these improvements are made to help extend the life of our roads and provide safer streets for everyone.

07/15/2026

🚧 ROAD WORK NOTICE – CHIP SEAL PROJECT BEGINNING JULY 20 🚧

Beginning Monday, July 20, Simon Contractors will begin chip sealing various roads in the Rapid Valley area. Work is anticipated to be completed by Friday, August 7.

🕖 Work Hours:
Monday–Friday
7:00 a.m. – 6:00 p.m.

🚗 IMPORTANT: If you live on a road marked in red on the attached map, please remove all vehicles, trailers, and campers from the roadway before work begins. Any vehicles left on the roadway will be towed at the owner's expense.

📬 Simon Contractors will be mailing notices to affected residents and will also be going door-to-door to speak with those who live on roads where work is scheduled.

We apologize for the temporary inconvenience and appreciate your cooperation as we work to improve the safety, durability, and longevity of your neighborhood roads.

Thank you for your patience and support!

07/06/2026

Most public-facing County offices will be closed on Monday, July 6, while the County works to assess a cybersecurity incident. See the full Press Release from the State’s Attorney’s Office below.

FOR IMMEDIATE RELEASE

Pennington County Responding to Cybersecurity Incident

Pennington County is responding to a cybersecurity incident affecting portions of its network.

As a result, most public-facing County offices will be closed on Monday, July 6, while the County works to assess the situation and restore systems safely.

The following services remain operational:

-Critical life safety services, including 911 Dispatch, the Pennington County Jail, Juvenile Services Center, the Care Campus, and other public safety operations
-Court operations
-The 24/7 Program
-Early voting at the Pennington County Auditor’s Office from 7:00 a.m. to 4:00 p.m.
-Vehicle registration services remain available online at my605drive.sd.gov and at self-service kiosks

At this time, the full scope of the incident is still being determined.

Pennington County is working closely with the South Dakota National Guard Cyber Incident Response Team, the South Dakota Fusion Center, the Cyber Infrastructure Security Agency, and other partners as the investigation continues.

Because this is an active investigation, there is very limited verified information available at this time. The County is committed to providing accurate information as it becomes available and expects to provide its next public update by 11:00 a.m. on Monday, July 6.

Media inquiries may be directed to:

Katy Urban
Public Information Officer
Pennington County State’s Attorney’s Office

07/01/2026

OLD FOLSOM ROAD CLOSURE

Beginning Monday, July 6, 2026, Old Folsom Road will be closed Monday through Thursday from 7:00 a.m. to 4:00 p.m. between Antelope Creek Road and Lower Spring Creek Road for road work.

This closure will be detailed on the Pennington County Public Safety Hub map which can be found at www.pennco.org/publicsafetyhub.

If you have questions, please contact the Pennington County Highway Department at (605) 394-2166.