Safety Measurement System - Complete SMS Profile (U.S. DOT# 377080)

SIOUX FALLS TOWER SPECIALISTS INC

DBA: VIKOR

U.S. DOT#: 377080

Number of Vehicles: 99
Number of Drivers: 159
Number of Inspections: 29

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
0.40 Measure	Not Public	0.14 Measure	3.50 Measure	0.06 Measure	Not Public	0.38 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 8 Safety Event Group: 5-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 145.6 Segment: Straight Carrier	Not Public	Driver Inspections: 29 with HOS Compliance Violations: 1 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 19 with Vehicle Maint. Violations: 9 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 29 with Drugs/Alcohol Violations: 1 Safety Event Group: 1 driver inspections with Controlled Substances/Alcohol Violations	Not Public	Driver Inspections: 29 with Driver Fitness Violations: 1 Safety Event Group: 21-100 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: 30


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16AD	Driver - Failed to use seat belt while operating a CMV.	1	0	7	Unsafe Driving
392.2C	Failure to obey traffic control device	1	0	5	Unsafe Driving
392.2-SLLLR	State/Local Laws - Lane restriction violation	1	0	3	Unsafe Driving
392.2-SLLS2	State/Local Laws - Speeding 6-10 miles per hour over the speed limit	3	0	4	Unsafe Driving
392.2-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other	2	0	5	Unsafe Driving
395.8A1-HOSP	HOS (Property) - Failing to have a record of duty status using the method prescribed	1	1	5	HOS Compliance
391.11B1-A	Age - Operate a CMV while not at least 21 years of age in interstate commerce	1	1	4	Driver Fitness
392.5(a)(3)	Driver having possession of alcohol while on duty, or operating, or in physical control of a CMV	1	1	3	Drugs/Alcohol
393.110(b)	Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo	1	1	3	Vehicle Maint.
393.11A1-LCL	Lighting - Clearance lamp(s) missing	1	0	2	Vehicle Maint.
393.11A1-LIL	Lighting - Identification lamp(s) missing	1	0	2	Vehicle Maint.
393.128	No/improper securement of vehicles	1	1	1	Vehicle Maint.
393.43(d)	No or defective automatic trailer brake	2	2	4	Vehicle Maint.
393.43DBMA	Brake - Breakaway not attached to the towing vehicle	1	1	4	Vehicle Maint.
393.48(a)	Inoperative/defective brakes	1	0	4	Vehicle Maint.
393.60(d)	Windshield / Windows - Tinting permits less than 70% of light transmittance	1	0	1	Vehicle Maint.
393.75A3-TAOL	Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS	1	1	8	Vehicle Maint.
393.9	Inoperable Required Lamp	3	0	2	Vehicle Maint.
393.95(a)	No/discharged/unsecured fire extinguisher	1	0	2	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper	1	0	2	Vehicle Maint.
396.17(c)	Operating a CMV without proof of a periodic inspection	2	0	4	Vehicle Maint.
396.3(a)1BOS	Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination	1	1	0	Vehicle Maint.
396.5B-HLOW	Hubs - oil and/or Grease Leaking from hub - outer wheel	1	0	2	Vehicle Maint.

Inspection History

Total Inspections: 29


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

3/31/2026	MO1144001479	MO	PR46815	SD	STRAIGHT TRUCK		3
2/20/2026	MS1019012266	MS	PR46811	SD	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
Driver Fitness Violation: 391.11B1-A Age - Operate a CMV while not at least 21 years of age in interstate commerce (OOS)						4 + 2 (OOS)
2/12/2026	IA000P169C0L	IA	PR47327	SD	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.43(d) No or defective automatic trailer brake (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
1/16/2026	OKN600001244	OK	46815	SD	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
12/3/2025	MACP00005821	MA	46815	SD	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
11/14/2025	SD5630001570	SD	PR46575	SD	STRAIGHT TRUCK		2
9/11/2025	MSMC00051371	MS	PR46708	SD	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
8/24/2025	NM8937P6KPQ5	NM	PR46412	SD	STRAIGHT TRUCK		2
8/7/2025	WA2085002503	WA	PR41351	SD	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.43DBMA Brake - Breakaway not attached to the towing vehicle (OOS)						4 + 2 (OOS)
8/5/2025	KYCV43095038	KY	PR46816	SD	STRAIGHT TRUCK		2
7/7/2025	WYTBAL999997	WY	PR46518	SD	STRAIGHT TRUCK		2
6/24/2025	MN0047000564	MN	PR49064	SD	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.11A1-LIL Lighting - Identification lamp(s) missing						2
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2
Vehicle Maint. Violation: 393.11A1-LCL Lighting - Clearance lamp(s) missing						2
6/19/2025	MN1673000739	MN	PR47321	SD	STRAIGHT TRUCK		2
5/13/2025	TX75CF9DUE0R	TX	46811	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
5/4/2025	IA000P15FBF3	IA	PR46415	SD	STRAIGHT TRUCK		1
4/29/2025	NET354000762	NE	PR42220	SD	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
4/23/2025	NET311001017	NE	PR41909	SD	STRAIGHT TRUCK		1
4/23/2025	CO1645040004	CO	PR64617	SD	STRAIGHT TRUCK		1
4/18/2025	IA000P120DPK	IA	PR41909	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.95(a) No/discharged/unsecured fire extinguisher						2
3/16/2025	NM8096P23L9T	NM	PR47119	SD	TRUCK TRACTOR		1
2/21/2025	KY0S14203852	KY	PR46575	SD	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.16AD Driver - Failed to use seat belt while operating a CMV.						7
12/22/2024	IA000P12JNPR	IA	PR47321	SD	STRAIGHT TRUCK		1
Drugs/Alcohol Violation: 392.5(a)(3) Driver having possession of alcohol while on duty, or operating, or in physical control of a CMV (OOS)						3 + 0 (OOS)
Vehicle Maint. Violation: 393.48(a) Inoperative/defective brakes						4
Vehicle Maint. Violation: 396.3(a)1BOS BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination (OOS)						0 + 2 (OOS)
Vehicle Maint. Violation: 393.43(d) No or defective automatic trailer brake (OOS)						4 + 2 (OOS)
Unsafe Driving Violation: 392.2C Failure to obey traffic control device						5
12/10/2024	AZXE55030419	AZ	PR46810	SD	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
HOS Compliance Violation: 395.8A1-HOSP HOS (Property) - Failing to have a record of duty status using the method prescribed (OOS)						5 + 2 (OOS)
10/23/2024	NM2438O89FT1	NM	PR44145	SD	STRAIGHT TRUCK		1
10/9/2024	VA6818000509	VA	PR46815	ND	TRUCK TRACTOR		1
9/12/2024	IA000P16DKWM	IA	PR47327	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
Vehicle Maint. Violation: 393.110(b) Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo (OOS)						3 + 2 (OOS)
Vehicle Maint. Violation: 396.17(c) Operating a CMV without proof of a periodic inspection						4
Vehicle Maint. Violation: 393.128 No/improper securement of vehicles (OOS)						1 + 2 (OOS)
8/20/2024	MN0263000328	MN	PR44143	MN	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
8/19/2024	IN7008005544	IN	PR41294	SD	STRAIGHT TRUCK		1
8/10/2024	IA000P13X573	IA	PR46815	SD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 396.17(c) Operating a CMV without proof of a periodic inspection						4
Vehicle Maint. Violation: 396.5B-HLOW Hubs - oil and/or Grease Leaking from hub - outer wheel						2
Vehicle Maint. Violation: 393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance						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: 2


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)

6/18/2025	MN0251690269	MN	PR49064	SD	1	3	Yes	No	2	2	4
9/12/2024	IA2401443034	IA	PR47327	SD	0	1	Yes	No	2	1	2

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: 10/8/2013 (Non-Ratable Review)
Total Inspections: 29
- Total Inspections without Violations used in SMS: 13
- Total Inspections with Violations used in SMS: 16
Total 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.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

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Inspection Selection System

Enforcement Cases

(Six years as of 05/29/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 377080

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: 10/8/2013 (Non-Ratable Review)	Total Inspections: 29 Total inspections without violations used in SMS: 13 Total inspections with violations used in SMS: 16	Total Crashes: 2*
10/8/2013 (Non-Ratable Review) 2/15/2011 (Non-Ratable Review) 6/29/2004 (Compliance Review) 4/11/2003 (Compliance Review)	# Insp. OOS Driver Inspections 29 10.3% Vehicle Inspections 19 31.6% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 1 Injury Crashes 1 Towaway Crashes 0

*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.

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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.

145.6 Average PU × Utilization Factor = 99 Average Power Units × 1.4704 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.

99 Average Power Units = 99 Current Power Units + 99 Power Units 6 Months Ago + 99 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# 377080 = 100% Straight trucks/other vehicles
Determine VMT per Average Power Unit
29,408 VMT per Average Power Unit = 2,911,411 VMT From Registration (MCS-150) ÷ 99 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	1.4704 = 29,408 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/.