Hills Materials Company Safety Record
DOT# 1521310 · Rapid City, SD 57702 · 6053943300
Legal name: Simon Contractors of South Dakota INC
Excellent safety record — scored 5/100 (lower is better). This carrier has one of the best inspection records on file.
Last inspected 12/17/2025
Safety Score Breakdown · 5/100 points
Lower scores are better. How is this calculated?
According to FMCSA records, Hills Materials Company (DOT# 1521310) in Rapid City, South Dakota has 20 inspections on record with 24 violations and a 10.0% vehicle out-of-service rate and 1 crash. Safety grade: A (excellent safety record). Active common authority.
Out-of-Service Rates vs. National Average
An out-of-service (OOS) violation means a vehicle or driver was found unsafe to operate during a roadside inspection and was prohibited from continuing until the issue was corrected.
Violation Categories · 24 total violations
FMCSA groups violations into Behavioral Analysis and Safety Improvement Categories (BASICs). Each violation found during a roadside inspection is classified into a category that reflects the type of safety risk.
Inspection History · 20 records
FMCSA inspections range from Level 1 (full vehicle and driver examination) to Level 6 (enhanced motorcoach inspection). Level 1 is the most thorough; Levels 2 and 3 are walk-around and driver-only checks.
| Date | State | Veh OOS | Drv OOS |
|---|---|---|---|
| 12/17/2025 | NE | 0 | 0 |
| 12/16/2025 | WY | 0 | 0 |
| 09/25/2025 | SD | 0 | 0 |
| 06/25/2025 | CO | 0 | 0 |
| 06/03/2025 | SD | 0 | 0 |
| 04/03/2025 | SD | 0 | 0 |
| 03/05/2025 | SD | 0 | 0 |
| 10/15/2024 | SD | 0 | 0 |
| 09/30/2024 | SD | 0 | 0 |
| 08/14/2024 | SD | 0 | 0 |
Crash History · 1 record
| Date | State | Fatalities | Injuries | Tow-Aways |
|---|---|---|---|---|
| 25-JUL-24 | SD | 0 | 0 | 0 |
Authority & Insurance
FMCSA operating authority permits interstate for-hire transportation. Carriers must maintain minimum insurance coverage levels to keep authority active. BIPD (bodily injury and property damage) insurance is required for all for-hire carriers.
| Type | Insurer | Coverage |
|---|---|---|
| BIPD/Primary | Liberty Mutual Fire Insurance Co. | $1,000 |
Fleet Profile
Power units include trucks, tractors, and other commercial motor vehicles registered to the carrier. Driver count reflects the total number of drivers reported on the carrier's MCS-150 filing.