Safety Measurement System - Complete SMS Profile (U.S. DOT# 527966)

O'BRIEN ROCK COMPANY INC

U.S. DOT#: 527966

Number of Vehicles: 72
Number of Drivers: 58
Number of Inspections: 15

Safety Rating & OOS Rates AND Licensing and Insurance

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BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending May 15, 2026

On-Road Performance
0.31 Measure	Not Public	0 Measure	3.92 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 3 Safety Event Group: 3-4 driver inspections with Unsafe Driving Violations Avg. PU × UF: 72 Segment: Straight Carrier	Not Public	Driver Inspections: 15 with HOS Compliance Violations: 0 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 7 with Vehicle Maint. Violations: 6 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 15 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 15 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.

Violation Summary

Violations: 14


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
392.2SLIMPT	State/Local Laws - General impeding traffic.	1	0	5	Unsafe Driving
392.2-SLLS2	State/Local Laws - Speeding 6-10 miles per hour over the speed limit	1	0	4	Unsafe Driving
393.43A-TSV	Air Brake - Inoperable or missing trailer supply valve	1	1	4	Vehicle Maint.
393.45B2-B-AIR	Air Brake - Hose/tubing damaged or not secured	1	0	4	Vehicle Maint.
393.45D-B	Air Brake - Audible air leak at a proper connection	1	0	4	Vehicle Maint.
393.75G-TAOW	Tires - All others, weight carried exceeds tire load limit	1	1	3	Vehicle Maint.
393.78A-WS	Washers - Inoperative washing system.	2	0	1	Vehicle Maint.
393.95A4-EEUS	Emergency Equipment - Fire Extinguishers - unsecured	1	0	2	Vehicle Maint.
393.9A-HLLH	Lighting - Headlamp(s) fail to operate on low and high beam	1	0	6	Vehicle Maint.
393.9A-LCL	Lighting - Clearance lamp(s) inoperative	1	0	2	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	1	0	3	Vehicle Maint.

Inspection History

Total Inspections: 15


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

5/5/2026	AR7310000902	AR	ACY363	KS	STRAIGHT TRUCK		3
4/8/2026	KS0194000036	KS	ACY458	KS	TRUCK TRACTOR		3
4/8/2026	KS0149000151	KS	151103	KS	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured						2
1/13/2026	KS0323000204	KS	ACY459	KS	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.75G-TAOW Tires - All others, weight carried exceeds tire load limit (OOS)						3 + 2 (OOS)
10/23/2025	KSHP03532734	KS	244738	KS	TRUCK TRACTOR		2
9/30/2025	OKN114153163	OK	231924	KS	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
9/11/2025	MO0359000596	MO	165886	KS	TRUCK TRACTOR		2
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
4/22/2025	AR7120000565	AR	244714	KS	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2SLIMPT State/Local Laws - General impeding traffic.						5
4/16/2025	KSHP92103397	KS	204486	KS	STRAIGHT TRUCK		1
2/28/2025	KSHP03532488	KS	160541	KS	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured						4
Vehicle Maint. Violation: 393.9A-LCL Lighting - Clearance lamp(s) inoperative						2
2/4/2025	KSHP01763456	KS	258769	KS	TRUCK TRACTOR		1
1/17/2025	AR7120000427	AR	241600	KS	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9A-HLLH Lighting - Headlamp(s) fail to operate on low and high beam						6
10/21/2024	MO0359000425	MO	165887	KS	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
Vehicle Maint. Violation: 393.43A-TSV Air Brake - Inoperable or missing trailer supply valve (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
9/30/2024	KSHP01763193	KS	231914	KS	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
6/5/2024	MO0915000159	MO	151103	KS	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: 3


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)

3/18/2025	MO0000112628	MO	PWR691035	KS	0	1	Yes	No	2	1	2
12/30/2024	KS2024E29135	KS	172276	KS	0	0	Yes	No	1	1	1
6/10/2024	AR2024535707	AR	188682	KS	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: 7/8/2013 (Offsite Investigation)
Total Inspections: 15
- Total Inspections without Violations used in SMS: 5
- Total Inspections with Violations used in SMS: 10
Total Crashes* : 3

*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 General Threshold Update Registration Info

Inspection Selection System

Enforcement Cases

(Six years as of 05/27/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 527966

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 5/15/2026, updated monthly)

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

Most Recent Investigation: 7/8/2013 (Offsite Investigation)	Total Inspections: 15 Total inspections without violations used in SMS: 5 Total inspections with violations used in SMS: 10	Total Crashes: 3*
7/8/2013 (Offsite Investigation) 5/24/2006 (Compliance Review)	# Insp. OOS Driver Inspections 15 0.0% Vehicle Inspections 8 25.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 Towaway Crashes 2

*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 5/15/2026, 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.

72 Average PU × Utilization Factor = 72 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.

72 Average Power Units = 72 Current Power Units + 72 Power Units 6 Months Ago + 72 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# 527966 = 80% Straight trucks/other vehicles
Determine VMT per Average Power Unit
15,129 VMT per Average Power Unit = 1,089,317 VMT From Registration (MCS-150) ÷ 72 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/.