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Freight Carrier · Rapid City, SD

HILLS MATERIALS COMPANY

Name: HILLS MATERIALS COMPANY
Address: 3975 STURGIS ROAD, RAPID CITY, SD, 57702, US
Telephone: (605) 394-3300

3975 STURGIS ROAD · Rapid City, SD 57702

AUTHORIZED FOR:

(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: 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 Jun 25, 2026.

Carrier Details

Legal Name SIMON CONTRACTORS OF SOUTH DAKOTA INC
Operating Status AUTHORIZED FOR:
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

Inspection activity Inspected in 4 states over the past 24 months: SD (8), NE (2), WY (1), CO (1). Home base: Rapid City, South Dakota.

Safety Record

1 Severe Violations Updated 2 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 0.11 1 Crash Indicator Not Public — Hours of Service 0 0 Vehicle Maintenance 4.66 3 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0 0

Inspection Summary

12
Total
8
Clean
4
With violations

24-month window ending Jun 26, 2026

Violations Cited 9 unique codes

Unsafe Driving 1

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

Vehicle Maintenance 8

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
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

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

Location on Map

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