SIOUX FALLS TOWER SPECIALISTS INC

USDOT 377080 • DBA: VIKOR • 4300 N NORTHVIEW AVE, SIOUX FALLS, SD, 57107

ACTIVE
Authority:None on file
Insurance:None on file
BOC-3:Not on file
Safety Rating:S
MCS-150:Never updated
OOS Orders:None

Overview

Company profile from FMCSA Census File

USDOT
377,080
Status
ACTIVE
Entity Type
Corporation
Operation
Interstate
Phone
6053316972
Power Units (MCS-150)
99
Drivers (MCS-150)
159
Safety Rating
S
MCS-150 Mileage
2,911,411
Physical Address
4300 N NORTHVIEW AVE, SIOUX FALLS, SD, 57107
Contact

Risk Signals1 flagged

HIGH
1 fatal crash in last 24 months
1 total fatality. See crash history below.

Signals are auto-detected from FMCSA public records. This is not a regulatory determination.

Authority & Insurance

Operating authority, insurance filings, and BOC-3 status

Active Authority
0
Revoked / Inactive
0
Authority Types
0
Insurance Policies
None on file
BOC-3 Filing
Not on file

Operating Authority

fmcsa-authhistApr 5, 2026
No records found

No insurance filings found for this carrier in FMCSA records.

Check FMCSA SAFER for current insurance status

Safety & Inspections

SMS BASIC scores, inspection history, and out-of-service rates

SMS BASIC Measures

Unsafe Driving
0
Hours of Service
0
Driver Fitness
0
Drugs / Alcohol
0
Vehicle Maintenance
3.47

BASIC measure values (lower = better). Percentile rankings not available for this carrier. Data from SMS snapshot Apr 5, 2026.

Inspections
51
Violations
61
22 OOS
Vehicle OOS %
19.6%
Driver OOS %
5.9%
Power Units (MCS-150)
99
Drivers (MCS-150)
159
Crash Records
5

Inspection Activity (24 months)

Monthly inspection counts with OOS months highlighted. Hover bars for details.

May
Jun
Jul
3
Aug
1
Sep
2
Oct
Nov
2
Dec
Jan
1
Feb
1
Mar
4
Apr
2
May
2
Jun
1
Jul
3
Aug
1
Sep
Oct
1
Nov
1
Dec
1
Jan
2
Feb
Mar
Apr
Clean monthMonth with OOSBased on latest 51 of 51 inspection records

Inspection Activity Map

22 states51 inspections

🚛
None Low Medium High🚛 Home base

Violation Summary (61 violations from 51 inspections)

fmcsa-inspection-file
Violation Summary (61 violations from 51 inspections)
CodeDescription# Violations# OOSSeverity WtBASIC
FMCSR:396.17(c)No proof of periodic inspection403Vehicle Maintenance
FMCSR:392.2Operating a CMV while ill or fatigued408Unsafe Driving
FMCSR:392.2-SLLS2Speeding 6-10 mph over limit305Unsafe Driving
FMCSR:177.834A-HMCGeneral loading/unloading hazmat336Hazardous Materials
FMCSR:393.9(a)Inoperable required lamps303Vehicle Maintenance
FMCSR:393.9Inoperable Required Lamp20Vehicle Maintenance
FMCSR:393.43DBrake - relay emergency valve227Vehicle Maintenance
FMCSR:391.11B1-AAge - Operate a CMV while not at least 21 years of age in interstate commerce11Driver Fitness
FMCSR:396.17C-PINo proof of periodic inspection103Vehicle Maintenance
FMCSR:392.2-SLLLROperating a CMV while ill or fatigued108Unsafe Driving
FMCSR:393.75A3-TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS11Vehicle Maintenance
FMCSR:393.43DBMABrake - relay emergency valve117Vehicle Maintenance
FMCSR:395.8F11-HOSM395.8F11-HOSM10Hours Of Service
FMCSR:393.60CGlazing/window obstructions104Vehicle Maintenance
FMCSR:393.11A1-LCLLighting devices/reflectors103Vehicle Maintenance
FMCSR:393.11A1-LHLMLighting devices/reflectors103Vehicle Maintenance
FMCSR:393.11A1-LILLighting devices/reflectors103Vehicle Maintenance
FMCSR:393.207A-SAPPASSuspension defective117Vehicle Maintenance
FMCSR:393.79Defroster/Defogger - Inoperative or defective10Vehicle Maintenance
FMCSR:393.95FEmergency Equipment - Stopped vehicle warning devices missing or improper10Vehicle Maintenance
FMCSR:393.11A1-LFTSMLighting devices/reflectors103Vehicle Maintenance
FMCSR:393.201A-FRMCFrame - cracked/loose/broken118Vehicle Maintenance
FMCSR:393.209C-STSCLSteering - Steering column has looseness in the u-bolt or positioning part11Vehicle Maintenance
FMCSR:393.75A3-TFLTires - Front leaking or inflation 50% or less than of the maximum inflation pressure11Vehicle Maintenance
FMCSR:393.95AEmergency equipment - fire extinguisher missing/defective105Vehicle Maintenance
FMCSR:392.16ADFailing to use seat belt (49 CFR)103Unsafe Driving
FMCSR:392.2COperating a CMV while ill or fatigued108Unsafe Driving
FMCSR:393.48AInoperative/defective brakes108Vehicle Maintenance
FMCSR:396.3A1BOSBRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination11Vehicle Maintenance
FMCSR:392.5A3Driver having possession of alcohol while on duty or operating or in physical control of a CMV11Controlled Substances/Alcohol
FMCSR:392.2-SLLTCDOperating a CMV while ill or fatigued108Unsafe Driving
FMCSR:395.8A1-HOSPHOS (Property) - Failing to have a record of duty status using the method prescribed11Hours Of Service
FMCSR:393.128Cargo securement - roll-on/roll-off containers116Vehicle Maintenance
FMCSR:393.110(b)Cargo securement - logs117Vehicle Maintenance
FMCSR:390.21T(b)(2)390.21T(b)(2)10General/Admin
FMCSR:393.60(d)Glazing/window obstructions104Vehicle Maintenance
FMCSR:396.5(b)Fuel system leak107Vehicle Maintenance
FMCSR:392.9(a)(2)Failing to secure vehicle equipment11Unsafe Driving
FMCSR:393.104(f)(3)Cargo securement - tiedown damaged106Vehicle Maintenance
FMCSR:393.50(d)Steering mechanism defective108Vehicle Maintenance
FMCSR:393.45(d)Brake tubing/hoses inadequate117Vehicle Maintenance
FMCSR:393.45(b)(2)Brake tubing/hoses inadequate107Vehicle Maintenance
FMCSR:393.100(c)Failure to prevent cargo shifting11Vehicle Maintenance
FMCSR:393.60(c)Glazing/window obstructions104Vehicle Maintenance
FMCSR:393.11Lighting devices/reflectors103Vehicle Maintenance
FMCSR:393.43Brake - relay emergency valve117Vehicle Maintenance
FMCSR:393.70(d)(8)Coupling devices defective118Vehicle Maintenance

Peer Context

This carrier vs national averages. Lower is better for all metrics.

Vehicle OOS Rate
19.6%vs nat'l 23.4%
-3.8 pts below avg
Driver OOS Rate
5.9%vs nat'l 6.7%
-0.8 pts below avg
Violations / Inspection
1.20vs nat'l 1.80
-0.60 below avg

National averages: vehicle OOS 23.4%, driver OOS 6.7%, violations per inspection ~1.8. Based on FMCSA MCSAP program data.

Inspection History (51 inspections)

Showing 50 of 51

fmcsa-inspectionsApr 5, 2026
Inspection History (51 inspections)
DateReport #StationStateLevelVehicleViolationsTop CodesOOS
Feb 20, 202687127358PRENTISS COUNTYMSLevel 3FORD STRAIGHT TRUCK3392.2-SLLS2, 391.11B1-A, 396.17C-PIYes
Feb 12, 20268704293839 - I35 SB MM 212 NORTHWOODIALevel 1CUSM SEMI-TRAILER3177.834A-HMC, 393.9, 393.43DYes
Jan 16, 202686825812RoadsideOKLevel 3FORD STRAIGHT TRUCK1392.2-SLLS2No
Dec 3, 202586504528H-BOLTONMALevel 3PJ SEMI-TRAILER1392.2-SLLLRNo
Nov 14, 202586319290JEFFERSON SDSDLevel 1DOOLITTLE SEMI-TRAILER0No
Sep 11, 202585777706FULTON SCALE US 78 WESTMSLevel 1DCTR SEMI-TRAILER1393.75A3-TAOLYes
Aug 24, 202585595838GALLUP PORT OF ENTRYNMLevel 1FORD STRAIGHT TRUCK0No
Aug 7, 202585465248TUMWATER WAWALevel 2UNPUBLISHE SEMI-TRAILER1393.43DBMAYes
Aug 5, 202585408931CORBINKYLevel 1FORD STRAIGHT TRUCK0No
Jul 7, 202585153840RoadsideWYLevel 1FORD STRAIGHT TRUCK1395.8F11-HOSMNo
Jun 24, 202585108028MONTICELLO MNMNLevel 1FORD STRAIGHT TRUCK11393.60C, 393.11A1-LCL, 393.11A1-LHLMNo
Jun 19, 202585044086ERSKINE MNMNLevel 3NOVAE LLC SEMI-TRAILER0No
May 13, 202584701064IH20 EB ODESSA SCALETXLevel 1PJTM SEMI-TRAILER1393.9No
May 4, 20258464211137 - I29 SB MM 132 SALIXIALevel 1FORD STRAIGHT TRUCK0No
Apr 29, 202584544415RoadsideNELevel 3FORD STRAIGHT TRUCK1392.2-SLLS2No
Apr 23, 202584479195RoadsideNELevel 1FORD STRAIGHT TRUCK0No
Apr 23, 202584527183PAGOSA SPRINGS COCOLevel 3FORD STRAIGHT TRUCK0No
Apr 18, 20258445668239 - I35 SB MM 212 NORTHWOODIALevel 1FORD STRAIGHT TRUCK2177.834A-HMC, 393.95AYes
Mar 16, 202584166612GALLUP PORT OF ENTRYNMLevel 1H&H TRAILE SEMI-TRAILER0No
Feb 21, 202583929913RICHMONDKYLevel 3FORD STRAIGHT TRUCK1392.16ADNo
Dec 22, 20248346547128 - I80 WB MM 44 AVOCAIALevel 1FORD STRAIGHT TRUCK6392.2C, 393.48A, 396.3A1BOSYes
Dec 10, 202483384259LITTLEFIELD AZAZLevel 3FORD STRAIGHT TRUCK2392.2-SLLTCD, 395.8A1-HOSPYes
Oct 23, 202482991344RATON PORT OF ENTRYNMLevel 1UNK FULL TRAILER0No
Oct 9, 202482864759MARTINSVILLE VAVALevel 3FORD TRUCK TRACTOR0No
Sep 12, 202482654446RoadsideIALevel 2FORD STRAIGHT TRUCK4393.128, 393.110(b), 393.9(a)Yes
Aug 20, 202482491709ELK RIVER MNMNLevel 3FORD STRAIGHT TRUCK2390.21T(b)(2), 392.2No
Aug 19, 202482433148SHELBURN ININLevel 1UNPUBLISHE SEMI-TRAILER0No
Aug 10, 202482372688RoadsideIALevel 2PJTM SEMI-TRAILER4393.60(d), 396.17(c), 392.2No
Apr 5, 202481290456HAUGAN MTMTLevel 1UNPUBLISHE SEMI-TRAILER2392.9(a)(2), 393.104(f)(3)Yes
Mar 6, 202481074005ON US HWY 54 88 FT S OF S BOOKNMLevel 2FORD STRAIGHT TRUCK0No
Dec 21, 202380456525VALLEY SPRINGS SDSDLevel 3FORD STRAIGHT TRUCK0No
Dec 3, 202380301383RoadsideMOLevel 1UNK SEMI-TRAILER0No
Nov 13, 202380146162WORTHINGTON SCALEMNLevel 1FORD STRAIGHT TRUCK0No
Oct 11, 202379891463FULTON SDSDLevel 1FORD STRAIGHT TRUCK0No
Oct 7, 202379876517JEFFERSON PORT OF ENTRYSDLevel 1FORD STRAIGHT TRUCK0No
Sep 28, 202379786977CHEYENNE I-25 POEWYLevel 1TRAIL SEMI-TRAILER4393.50(d), 393.45(d), 393.45(b)(2)Yes
Sep 12, 202379654655FREMONT SCALENELevel 1FORD STRAIGHT TRUCK0No
Aug 21, 202379460487BERESFORD TRUCK CHECKSDLevel 1TRLR SEMI-TRAILER0No
Aug 9, 20237939658039 - I35 SB MM 212 NORTHWOODIALevel 1FORD STRAIGHT TRUCK0No
Aug 2, 202379332044SUNDANCE POEWYLevel 1FORD TRUCK TRACTOR0No
Jun 8, 202378938274JEFFERSONSDLevel 1PARM SEMI-TRAILER0No
Jun 6, 202378906839APPLE CREEK REST AREANDLevel 1BIGT SEMI-TRAILER0No
May 31, 202378791154RoadsideUTLevel 2FORD TRUCK TRACTOR3393.60(c), 393.11, 393.9(a)No
May 31, 202378789803EAU CLAIRE (CITY)WILevel 2FORD STRAIGHT TRUCK2393.9(a), 392.2No
May 17, 202378754120LOVE CO POEOKLevel 1FORD STRAIGHT TRUCK1396.17(c)No
May 8, 202378573359DECLO PORT OF ENTRYIDLevel 1FORD STRAIGHT TRUCK0No
May 2, 202378546230YANKTONSDLevel 2TRLR SEMI-TRAILER0No
Apr 29, 202378494672WORTHINGTON SCALEMNLevel 1OTHR SEMI-TRAILER1396.17(c)No
Apr 27, 202378469761SAGINAW WEIGH SCALEMNLevel 1PJTM SEMI-TRAILER1393.43Yes
Apr 21, 202378416092RoadsideCOLevel 1UNK FULL TRAILER1393.70(d)(8)Yes

Inspection analytics

Monthly cadence, frequent stations, and violation mix

Inspections per month (24 mo)

28 total · 28.6% OOS
2024-082026-02
InspectionsOOS

Violations by BASIC category

Recent Crashes

5 crash records from FMCSA Crash File

Total Crashes
5
Fatalities
1
Fatal crashes on record
Injuries
7
Across 4 crashes
Tow-Aways
5

Crash History (5 records)

fmcsa-crash-fileApr 5, 2026
Crash History (5 records)
DateStateSeverityFatalitiesInjuriesCityLocationVINCarrier Name at Crash
Jun 18, 2025MNFATAL13MONTICELLOISTH 94...C11895SIOUX FALLS TOWER SPECIALISTS INC
Sep 12, 2024IAINJURY01280TH ST...E73501VIKOR
Mar 14, 2022IAINJURY02AMESSOUTH 16TH ST...E73501VIKOR
Dec 18, 2019ARINJURY01
Apr 6, 2006MNTOW00

Compliance Timeline

5 events merged from authority, insurance, enforcement, OOS, crash, MCS-150, and safety rating records

Jun 18, 2025
Crash
Fatal crash in MN
1 fatality, 3 injuries
Sep 12, 2024
Crash
Injury crash in IA
0 fatalities, 1 injury
Mar 14, 2022
Crash
Injury crash in IA
0 fatalities, 2 injuries
Dec 18, 2019
Crash
Injury crash
0 fatalities, 1 injury
Apr 6, 2006
Crash
Tow-away crash
0 fatalities, 0 injuries

Related Records

Data sources & freshness

FMCSA Company Census File
Generated from 24-hour old database. Contact info and fleet counts may lag.
Updated 1 weeks ago
FMCSA Authority History
Updated 1 weeks ago
FMCSA Insurance Filings
Updated 1 weeks ago
FMCSA Vehicle Inspection File
Updated 1 weeks ago
Refresh dataLast updated: Apr 5, 2026