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Freight Carrier · Rapid City, SD

HILLS MATERIALS COMPANY

3975 STURGIS ROAD · Rapid City, SD 57702

Authorized: Property
(605) 394-3300 Tap to call
  • MC #890875
  • USDOT #1521310 USDOT Active
  • 48
    Power Units
  • 55
    Drivers
  • Carrier
    Entity Type

About this carrier

HILLS MATERIALS COMPANY is a Rapid City, SD freight carrier that is authorized for property in the state of South Dakota. This company has 48 truck(s) in their fleet and 55 truck drivers. Their motor carrier number is MC-890875 and their USDOT number is 1521310.

Sourced from FMCSA SAFER · last filed 10/29/2025 · last updated May 12, 2026.

Carrier Details

  • Legal Name SIMON CONTRACTORS OF SOUTH DAKOTA INC
  • Operating Status AUTHORIZED FOR Property
  • MCS-150 Filed 10/29/2025
  • MCS-150 Mileage 600,000 (2025)

Authority & Operations

Operation Classification
  • Authorized for Hire
  • Private (Property)
  • Private Passenger (Business)
Carrier Operation
  • Interstate

Cargo Authorized

  • General Freight
  • Motor Vehicles
  • Building Materials
  • Machinery, Large Objects
  • Liquids/Gases
  • Passengers
  • Construction

Operating Territory

Map of states where this carrier has roadside inspections South Dakota — 11 inspections (past 24 months) Nebraska — 2 inspections (past 24 months) Wyoming — 1 inspection (past 24 months) Colorado — 1 inspection (past 24 months)

Inspection activity   Inspected in 4 states over the past 24 months: SD (11), NE (2), WY (1), CO (1). Home base: Rapid City, South Dakota.

Safety Record

1 Severe Violations Updated 1 days ago

Out of Service Rates (24 mo)

TypeThis carrierNational avg Vehicle 10% 23.4% Driver 0% 6.7% Hazmat 0% 4.4%

Crashes (24 mo)

  • 0
    Fatal
  • 0
    Injury
  • 1
    Tow
  • 1
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0.19 1 Crash Indicator Not Public — Hours of Service 0 0 Vehicle Maintenance 4.57 4 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0 0

Inspection Summary

  • 15
    Total
  • 9
    Clean
  • 6
    With violations

24-month window ending May 15, 2026

Violations Cited 12 unique codes

Critical 1

  • 393.43A-TSVAir Brake - Inoperable or missing trailer supply valve1× OOS×1 SW 4

Unsafe Driving 1

  • 392.16-DDriver - Failed to use seat belt while operating a CMV1× SW 7

Vehicle Maintenance 9

  • 393.11A1-LLighting - Lamps improper color.1× SW 6
  • 393.25E-LLighting - Lamps (other than headlamps), not steady burning as required1× SW 6
  • 393.9A-LRLILighting - Tail lamp - Any inoperative1× SW 6
  • 393.9A-LSLILighting - Stop lamps - Any inoperative.1× SW 6
  • 396.3A1-BALACBrake - Audible air leak from a brake chamber1× SW 4
  • 393.9A-LCLLighting - Clearance lamp(s) inoperative1× SW 2
  • 393.9A-LLPLLighting - License plate lamp inoperative1× SW 2
  • 393.60(c)Windshield - Damaged or Discolored1× SW 1
  • 393.78A-WSWashers - Inoperative washing system.1× SW 1

Hazardous Materials 1

  • 172.516C6-HMPMCHM (Placarding) - Failure to maintain placard(s) in a condition so that the format, legibility, color, and visibility of the placard will not be substantially reduced due to damage, deterioration, or obscurement by dirt or other matter1× SW 5

Locations

Physical Address
HILLS MATERIALS COMPANY
3975 STURGIS ROAD
RAPID CITY, SD 57702
Mailing Address
SIMON CONTRACTORS OF SOUTH DAKOTA INC
PO BOX 2720
RAPID CITY, SD 57709

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