Simon Contractors of South Dakota Inc (DOT# 1521310) – FMCSA Carrier Profile
doing business as HILLS MATERIALS COMPANY
DOT# 1521310MC# 890875● Active
Updated: 2026-03-09
Simon Contractors of South Dakota Inc is a registered motor carrier with the FMCSA under USDOT number 1521310. The company operates from Rapid City, SD and maintains an active operating status with 48 power units and 55 drivers on record.
Safety Rating
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Company Information
Address3975 Sturgis Road, Rapid City, SD, 57702
Phone(605) 394-3300
Entity TypePrivate Property
OperationInterstate
Power Units48
Drivers55
MCS-150 FiledOctober 29, 2025
Annual Mileage600,000 mi (2025)
Inspection Summary
All-time Inspections
All-time16
Total
1
OOS
0
Driver OOS
1
Vehicle OOS
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.
Crash History
Crash Records
All-time1
Total
0
Fatal
0
Injuries
0
Tow-Away
BASICS Safety Scores
BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories0.2
Unsafe Driving
0.0
HOS Compliance
0.0
Driver Fitness
0.0
Controlled Substances
3.8
Vehicle Maintenance
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Frequently Asked Questions
What is USDOT Number 1521310?
USDOT number 1521310 is assigned to Simon Contractors of South Dakota Inc, an active motor carrier registered with the FMCSA, based in Rapid City, SD.
How many inspections has Simon Contractors of South Dakota Inc had?
Simon Contractors of South Dakota Inc has recorded 16 total inspections with 1 out-of-service orders, representing an OOS rate of 6.25%.
Where is Simon Contractors of South Dakota Inc located?
Simon Contractors of South Dakota Inc is headquartered at 3975 Sturgis Road, Rapid City, SD 57702.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 1521310 · Last updated: 2026-03-09. View official FMCSA record →