Safety Measurement System - Complete SMS Profile (U.S. DOT# 1521310)

SIMON CONTRACTORS OF SOUTH DAKOTA INC

DBA: HILLS MATERIALS COMPANY

U.S. DOT#: 1521310

Address: 3975 STURGIS ROAD
RAPID CITY, SD 57702
Number of Vehicles: 48
Number of Drivers: 55
Number of Inspections: 16

Safety Rating & OOS Rates

(As of 01/31/2026 updated daily from SAFER )

Not Rated

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	9.1	23.2
Driver	0.0	6.4
Hazmat	0.0	4.4

Licensing and Insurance

(As of 01/31/2026 updated hourly from L&I )

Active For-Hire Authority
Type	Yes/No	MC#/MX#
Property	Yes	MC-890875
Passenger	No
Household Goods	No
Broker	No

BASIC Status (Public Passenger Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending December 26, 2025

On-Road Performance
0.19 Measure Less than 3 driver inspections with violations	Not Public	0 Measure 0% Percentile	3.76 Measure Less than 5 vehicle inspections with violations	0 Measure 0% Percentile	Not Public	0 Measure 0% Percentile
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 70.7 Segment: Straight Carrier	Not Public	Driver Inspections: 16 with HOS Compliance Violations: 0 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 11 with Vehicle Maint. Violations: 4 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 16 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 16 with Driver Fitness Violations: 0 Safety Event Group: 11-20 relevant driver inspections
Investigation Results
No Acute/Critical Violations Discovered	N/A	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	Not Public	No Acute/Critical Violations Discovered

Select a BASIC icon above to get details, or view your Complete SMS Profile.

Carrier may be prioritized for an intervention action and roadside inspection. Denotes this carrier exceeds the FMCSA Intervention Threshold relative to its safety event grouping based upon roadside data and/or has been cited with one or more Acute/Critical Violations within the past 12 months during an investigation. Therefore, this carrier may be prioritized for an intervention action and roadside inspection.

Violation Summary

Violations: 12


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16-D	Driver - Failed to use seat belt while operating a CMV.	1	0	7	Unsafe Driving
393.11A1-L	Lighting - Lamps improper color.	1	0	6	Vehicle Maint.
393.25E-L	Lighting - Lamps (other than headlamps), not steady burning as required.	1	0	6	Vehicle Maint.
393.43A-TSV	Air Brake - Inoperable or missing trailer supply valve	1	1	4	Vehicle Maint.
393.60(c)	Windshield - Damaged or Discolored	1	0	1	Vehicle Maint.
393.78A-WS	Washers - Inoperative washing system.	1	0	1	Vehicle Maint.
393.9A-LCL	Lighting - Clearance lamp(s) inoperative.	1	0	2	Vehicle Maint.
393.9A-LLPL	Lighting - License plate lamp inoperative.	1	0	2	Vehicle Maint.
393.9A-LRLI	Lighting - Tail lamp - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
396.3A1-BALAC	Brake - Audible air leak from a brake chamber	1	0	4	Vehicle Maint.
172.516C6-HMPMC	HM (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 matter.	1	0	5	HM Compliance

Inspection History

Total Inspections: 16


Report			Vehicle			Measure
Inspection Date	Number	State	Plate Number	Plate State	Type	Severity Weight (SW)	Time Weight (TiW)

12/17/2025	NET354001035	NE	PR32717	SD	TRUCK TRACTOR		3
12/16/2025	WYTJSR000782	WY	PR29918	SD	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.9A-LRLI Lighting - Tail lamp - Any inoperative						6
Vehicle Maint. Violation: 393.25E-L Lighting - Lamps (other than headlamps), not steady burning as required						6
9/25/2025	SD0450000655	SD	TEMP	SD	STRAIGHT TRUCK		3
6/25/2025	CO1749420010	CO	A17657	WY	STRAIGHT TRUCK		2
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
6/3/2025	SD0820000774	SD	62686C	SD	TRUCK TRACTOR		2
4/3/2025	SD5780000479	SD	PR29895	SD	STRAIGHT TRUCK		2
3/5/2025	SD5790000566	SD	PR29899	SD	STRAIGHT TRUCK		2
10/15/2024	SD0680000670	SD	PR44063	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.60(c) Windshield - Damaged or Discolored						1
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
9/30/2024	SDHP88000017	SD	PR29882	SD	TRUCK TRACTOR		1
8/14/2024	SD0450000451	SD	PR31773	SD	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9A-LCL Lighting - Clearance lamp(s) inoperative						2
Vehicle Maint. Violation: 393.11A1-L Lighting - Lamps improper color, height, or location						6
Vehicle Maint. Violation: 393.9A-LLPL Lighting - License plate lamp inoperative						2
7/31/2024	SD5180001070	SD	PR29932	SD	TRUCK TRACTOR		1
6/11/2024	SD5640000252	SD	PR29907	SD	STRAIGHT TRUCK		1
6/11/2024	SD5550000035	SD	34085V	SD	STRAIGHT TRUCK		1
HM Compliance Violation: 172.516C6-HMPMC HM (Placarding) - Failure to maintain placard(s) in a condition so that the format, legibility, color, and visibility of the placard will not be substantially red						5
6/11/2024	SD5550000033	SD	PR29899	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 396.3A1-BALAC Brake - Audible air leak from a brake chamber						4
Vehicle Maint. Violation: 393.43A-TSV Air Brake - Inoperable or missing trailer supply valve (OOS)						4 + 2 (OOS)
3/27/2024	SD5780000101	SD	PR29896	SD	STRAIGHT TRUCK		1
3/18/2024	US1811000024	US	340854	SD	TRUCK TRACTOR		1

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 1


Report			Vehicle		Crash				Measure = Sum of the Total Weight (TotW)
Date	Number	State	Plate Number	Plate State	Fatal	Inj.	Tow.	HM	Severity Weight (SW)	Time Weight (TiW)	Total Weight (TotW)

7/25/2024	SD0202409797	SD	PR32609	RI	0	0	Yes	No	1	1	1

Investigation Results

Acute/Critical Violations: 0

This carrier has no Acute/Critical violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation:
Total Inspections: 16
- Total Inspections without Violations used in SMS: 10
- Total Inspections with Violations used in SMS: 6
Total Crashes* : 1

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

Carrier Registration Details Subject to Passenger Threshold Update Registration Info

Enforcement Cases

(Six years as of 01/31/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1521310

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 12/26/2025, updated monthly)

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: None	Total Inspections: 16 Total inspections without violations used in SMS: 10 Total inspections with violations used in SMS: 6	Total Crashes: 1*
	# Insp. OOS Driver Inspections 16 0.0% Vehicle Inspections 11 9.1% Placardable HM Inspections 3 0.0% % Placardable HM Inspections 27.3%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 1

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Downloads

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Average PU × Utilization Factor (as of 12/26/2025, updated monthly)

The SMS normalizes the Unsafe Driving and Crash Indicator BASICs measure by carrier size (i.e., a hybrid power unit and vehicle miles travelled measure) to account for exposure. Carrier size is defined as average power units multiplied by the utilization factor.

70.7 Average PU × Utilization Factor = 70.7 Average Power Units × 1 Utilization Factor

Average Power Units
Utilization Factor

In order to account for changes in a carrier's fleet size during the previous 24 months an average power unit value is used in the calculation to determine a carrier's Unsafe Driving BASIC and Crash Indicator measures.

70.7 Average Power Units = 48 Current Power Units + 82 Power Units 6 Months Ago + 82 Power Units 18 Months Ago
3

The Utilization Factor is a multiplier that adjusted the average PU values based on the utilization in terms of VMT per average PU.

Determine Carrier Segment: Straight
Straight trucks/other vehicles constituting more than 30% of the total PU
U.S. DOT# 1521310 = 79% Straight trucks/other vehicles
Determine VMT per Average Power Unit
8,490 VMT per Average Power Unit = 600,000 VMT From Registration (MCS-150) ÷ 70.7 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Straight Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 20,000	1
	20,000 – 60,000	1 = VMT per PU ÷ 20,000
	60,000 – 200,000	3
	> 200,000	1
	No Recent VMT Information	1

Use of SMS Data/Information

FAST Act of 2015:

Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.

Safety Measurement System:

The data in the Safety Measurement System (SMS) is performance data used by the Agency and Enforcement Community. A symbol, based on that data, indicates that FMCSA may prioritize a motor carrier for further monitoring.

The symbol is not intended to imply any federal safety rating of the carrier pursuant to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part 385, or has otherwise been ordered to discontinue operations by the FMCSA, it is authorized to operate on the nation's roadways.

Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.