USDOT 1521310MC890875

Hills Materials Company

Simon Contractors Of South Dakota Inc · Rapid City, SD · Interstate

Motor Carrier

Authority Active

48

Power units

55

Drivers

22

Roadside inspections

Services

What we move

For-hire trucking

Authorized interstate freight transportation with a fleet of 48 power units.

Property freight

Federal authority on file to haul general property freight.

Interstate operations

Operating scope on federal record: interstate, based out of SD.

Derived from federal registrations. Claim this page to list your exact equipment and lanes.

Fleet & safety

The operation

Hills Materials Company equipmentHills Materials Company equipmentHills Materials Company equipmentHills Materials Company equipment

Fleet photos from simonteam.com

22

Inspections

Aug 25, 2026

Most recent

Oct 31, 2023

Earliest on file

DateStateLevel
Aug 25, 2026SDLevel I — Full
Aug 6, 2026SDLevel II — Walk-around
Jul 23, 2026SDLevel III — Driver-only
Apr 15, 2026NELevel III — Driver-only
Dec 17, 2025NELevel III — Driver-only
Full safety & compliance record →

About

Who we are

Hills Materials Company is an interstate motor carrier based in Rapid City, SD.

We do more than build roads—we create opportunities and lasting connections. Grounded in grit and driven by purpose, our projects start with raw materials and turn into real infrastructure that strengthens communities. From asphalt and concrete paving to bridges and utility work, we deliver quality that stands the test of time. Whether you’re looking for a team where hard work leads to opportunity or a trusted …— in their own words, from simonteam.com

Auto-written from federal records. Claim this page to tell your own story and add your team.

Contact

Work with Hills Materials Company

Address

3975 Sturgis Road
Rapid City, SD 57702

Phone

(605) 394-3300

Email

RH•••@S•••.COM

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Authority history (3 actions)
  • Involuntary Revocation — Common
  • Granted — Motor Property Common Carrier
  • Involuntary Revocation — Common
Auto-built by TenFourHQ from FMCSA Motor Carrier Census, Licensing & Insurance, and roadside inspection records published at data.transportation.gov — synced daily. Records shown as published; corrections belong upstream via an MCS-150 update. TenFourHQ is not affiliated with FMCSA.