Safety Measurement System - Complete SMS Profile (U.S. DOT# 341659)

R H HUMMER JR INC

U.S. DOT#: 341659

Address: 2141 P AVENUE
WILLIAMSBURG, IA 52361
Number of Vehicles: 27
Number of Drivers: 21
Number of Inspections: 20

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending September 25, 2026

On-Road Performance
2.07 Measure	Not Public	0.06 Measure	8.76 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 4 Safety Event Group: 3-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 32.3 Segment: Combination Carrier	Not Public	Driver Inspections: 20 with HOS Compliance Violations: 2 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 6 with Vehicle Maint. Violations: 4 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 20 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 20 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: 24


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLS2	State/Local Laws - Speeding 6-10 miles per hour over the speed limit	1	0	4	Unsafe Driving
392.2Y	Failure to yield right of way	1	0	5	Unsafe Driving
392.82DUMT	Driver - Using a hand-held mobile telephone	2	0	10	Unsafe Driving
395.24C2III	Driver failed to manually add shipping document number	2	0	1	HOS Compliance
393.104(a)	Inadequate/damaged securement device/system	1	0	1	Vehicle Maint.
393.11	No or defective lighting devices or reflective material as required	1	0	3	Vehicle Maint.
393.11A1-CSLRR	Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997	1	0	3	Vehicle Maint.
393.11A1-LBL	Lighting - Backup lamp missing	1	0	6	Vehicle Maint.
393.11TL	Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997	1	0	3	Vehicle Maint.
393.11TU	Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997	1	0	3	Vehicle Maint.
393.45(b)(2)	Brake hose or tubing chafing and/or kinking	1	1	4	Vehicle Maint.
393.45B2-B-AIR	Air Brake - Hose/tubing damaged or not secured	1	1	4	Vehicle Maint.
393.45B2PC	Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit	1	1	4	Vehicle Maint.
393.45(d)	Brake connections with leaks or constrictions	1	0	4	Vehicle Maint.
393.47(e)	Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt	2	0	4	Vehicle Maint.
393.53(b)	CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear	2	0	4	Vehicle Maint.
393.55(c)(1)	Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system	1	0	4	Vehicle Maint.
393.60(c)	Windshield - Damaged or Discolored	1	0	1	Vehicle Maint.
396.3(a)(1)	Brake - Leak from air chamber	1	0	4	Vehicle Maint.
396.5(b)	Oil and/or grease leak	1	0	3	Vehicle Maint.

Inspection History

Total Inspections: 20


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

7/8/2026	NET325001202	NE	FS1686	IA	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.82DUMT Driver - Using a hand-held mobile telephone						10
6/25/2026	IA520H000061	IA	LR1070	IA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997						3
Vehicle Maint. Violation: 393.11A1-LBL Lighting - Backup lamp missing						6
Vehicle Maint. Violation: 393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured (OOS)						4 + 2 (OOS)
6/24/2026	IA205S000113	IA	FW0822	IA	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
4/16/2026	IA000P13X6KP	IA	LR0580	IA	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2Y Failure to yield right of way						5
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
3/27/2026	IL5005240098	IL	DE4134	IA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.60(c) Windshield - Damaged or Discolored						1
Vehicle Maint. Violation: 396.3(a)(1) Brake - Leak from air chamber						4
12/4/2025	MOW031006141	MO	FS6222	IA	TRUCK TRACTOR		2
10/8/2025	KSHP93284931	KS	FP5415	IA	TRUCK TRACTOR		2
9/18/2025	SD5370003256	SD	FW5083	IA	TRUCK TRACTOR		1
7/30/2025	SD5530002822	SD	DA4613	IA	TRUCK TRACTOR		1
6/12/2025	IA000P13XJLD	IA	NONE	IA	TRUCK TRACTOR		1
5/20/2025	SD5470002880	SD	DE4135	IA	TRUCK TRACTOR		1
5/13/2025	SD5450002524	SD	TEMP	IA	TRUCK TRACTOR		1
5/13/2025	IA000P12Q84D	IA	FZ9017	IA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.104(a) Inadequate/damaged securement device/system						1
Vehicle Maint. Violation: 396.5(b) Oil and/or grease leak						3
HOS Compliance Violation: 395.24C2III Driver failed to manually add shipping document number						1
Vehicle Maint. Violation: 393.55(c)(1) Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system						4
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.45(d) Brake connections with leaks or constrictions						4
Vehicle Maint. Violation: 393.11 No or defective lighting devices or reflective material as required						3
Vehicle Maint. Violation: 393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997						3
Vehicle Maint. Violation: 393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997						3
Vehicle Maint. Violation: 393.45(b)(2) Brake hose or tubing chafing and/or kinking (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.45B2PC Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit (OOS)						4 + 2 (OOS)
2/28/2025	SD5860002176	SD	FW5083	IA	TRUCK TRACTOR		1
2/25/2025	SD5540002976	SD	SB1369	IA	TRUCK TRACTOR		1
1/29/2025	IA000P13XJD4	IA	DB1954	IA	TRUCK TRACTOR		1
1/10/2025	IA000P151VDK	IA	TEMP	IA	TRUCK TRACTOR		1
HOS Compliance Violation: 395.24C2III Driver failed to manually add shipping document number						1
12/31/2024	GA1408000729	GA	FX3179	IA	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.82DUMT Driver - Using a hand-held mobile telephone						10
10/16/2024	MN1664000312	MN	DE4136	IA	TRUCK TRACTOR		1
9/29/2024	IA000P121GSB	IA	DE4133	IA	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: 4


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)

4/16/2026	IA2601538560	IA	LR0580	IA	0	1	Yes	No	2	3	6
1/29/2025	IA2501467054	IA	DB1954	IA	0	0	Yes	No	1	1	1
12/19/2024	MN0243540716	MN	NOPLATE	IA	0	0	Yes	No	1	1	1
10/10/2024	MN0242840133	MN	DA4613	IA	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: 12/19/1989 (Safety Review)
Total Inspections: 20
- Total Inspections without Violations used in SMS: 12
- Total Inspections with Violations used in SMS: 8
Total Crashes* : 4

*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

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

Enforcement Cases

(Six years as of 10/09/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 341659

Complete SMS Profile Carrier History Downloads

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

Most Recent Investigation: 12/19/1989 (Safety Review)	Total Inspections: 20 Total inspections without violations used in SMS: 12 Total inspections with violations used in SMS: 8	Total Crashes: 4*
12/19/1989 (Safety Review)	# Insp. OOS Driver Inspections 20 0.0% Vehicle Inspections 6 33.3% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 Towaway 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.

Average PU × Utilization Factor (as of 9/25/2026, 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.

32.3 Average PU × Utilization Factor = 32.3 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.

32.3 Average Power Units = 27 Current Power Units + 27 Power Units 6 Months Ago + 43 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: Combo
Combination trucks/motor coach buses constituting 70% or more of the total PU
U.S. DOT# 341659 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
39,901 VMT per Average Power Unit = 1,290,000 VMT From Registration (MCS-150) ÷ 32.3 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Combo Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 80,000	1
	80,000 – 160,000	1 + (VMT per PU − 80,000) ÷ 133,333
	160,000 – 200,000	1.6
	> 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/.