SIOUX FALLS TOWER SPECIALISTS INC
USDOT 377080 • DBA: VIKOR • 4300 N NORTHVIEW AVE, SIOUX FALLS, SD, 57107
Overview
Company profile from FMCSA Census File
Risk Signals1 flagged
Signals are auto-detected from FMCSA public records. This is not a regulatory determination.
Authority & Insurance
Operating authority, insurance filings, and BOC-3 status
Operating Authority
No insurance filings found for this carrier in FMCSA records.
Safety & Inspections
SMS BASIC scores, inspection history, and out-of-service rates
SMS BASIC Measures
BASIC measure values (lower = better). Percentile rankings not available for this carrier. Data from SMS snapshot Apr 5, 2026.
Inspection Activity (24 months)
Monthly inspection counts with OOS months highlighted. Hover bars for details.
Inspection Activity Map
22 states • 51 inspections
Violation Summary (61 violations from 51 inspections)
| Code | Description | # Violations | # OOS | Severity Wt | BASIC |
|---|---|---|---|---|---|
| FMCSR:396.17(c) | No proof of periodic inspection | 4 | 0 | 3 | Vehicle Maintenance |
| FMCSR:392.2 | Operating a CMV while ill or fatigued | 4 | 0 | 8 | Unsafe Driving |
| FMCSR:392.2-SLLS2 | Speeding 6-10 mph over limit | 3 | 0 | 5 | Unsafe Driving |
| FMCSR:177.834A-HMC | General loading/unloading hazmat | 3 | 3 | 6 | Hazardous Materials |
| FMCSR:393.9(a) | Inoperable required lamps | 3 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.9 | Inoperable Required Lamp | 2 | 0 | — | Vehicle Maintenance |
| FMCSR:393.43D | Brake - relay emergency valve | 2 | 2 | 7 | Vehicle Maintenance |
| FMCSR:391.11B1-A | Age - Operate a CMV while not at least 21 years of age in interstate commerce | 1 | 1 | — | Driver Fitness |
| FMCSR:396.17C-PI | No proof of periodic inspection | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:392.2-SLLLR | Operating a CMV while ill or fatigued | 1 | 0 | 8 | Unsafe Driving |
| FMCSR: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 | — | Vehicle Maintenance |
| FMCSR:393.43DBMA | Brake - relay emergency valve | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:395.8F11-HOSM | 395.8F11-HOSM | 1 | 0 | — | Hours Of Service |
| FMCSR:393.60C | Glazing/window obstructions | 1 | 0 | 4 | Vehicle Maintenance |
| FMCSR:393.11A1-LCL | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.11A1-LHLM | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.11A1-LIL | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.207A-SAPPAS | Suspension defective | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:393.79 | Defroster/Defogger - Inoperative or defective | 1 | 0 | — | Vehicle Maintenance |
| FMCSR:393.95F | Emergency Equipment - Stopped vehicle warning devices missing or improper | 1 | 0 | — | Vehicle Maintenance |
| FMCSR:393.11A1-LFTSM | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.201A-FRMC | Frame - cracked/loose/broken | 1 | 1 | 8 | Vehicle Maintenance |
| FMCSR:393.209C-STSCL | Steering - Steering column has looseness in the u-bolt or positioning part | 1 | 1 | — | Vehicle Maintenance |
| FMCSR:393.75A3-TFL | Tires - Front leaking or inflation 50% or less than of the maximum inflation pressure | 1 | 1 | — | Vehicle Maintenance |
| FMCSR:393.95A | Emergency equipment - fire extinguisher missing/defective | 1 | 0 | 5 | Vehicle Maintenance |
| FMCSR:392.16AD | Failing to use seat belt (49 CFR) | 1 | 0 | 3 | Unsafe Driving |
| FMCSR:392.2C | Operating a CMV while ill or fatigued | 1 | 0 | 8 | Unsafe Driving |
| FMCSR:393.48A | Inoperative/defective brakes | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:396.3A1BOS | 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 | 1 | 1 | — | Vehicle Maintenance |
| FMCSR:392.5A3 | Driver having possession of alcohol while on duty or operating or in physical control of a CMV | 1 | 1 | — | Controlled Substances/Alcohol |
| FMCSR:392.2-SLLTCD | Operating a CMV while ill or fatigued | 1 | 0 | 8 | Unsafe Driving |
| FMCSR:395.8A1-HOSP | HOS (Property) - Failing to have a record of duty status using the method prescribed | 1 | 1 | — | Hours Of Service |
| FMCSR:393.128 | Cargo securement - roll-on/roll-off containers | 1 | 1 | 6 | Vehicle Maintenance |
| FMCSR:393.110(b) | Cargo securement - logs | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:390.21T(b)(2) | 390.21T(b)(2) | 1 | 0 | — | General/Admin |
| FMCSR:393.60(d) | Glazing/window obstructions | 1 | 0 | 4 | Vehicle Maintenance |
| FMCSR:396.5(b) | Fuel system leak | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:392.9(a)(2) | Failing to secure vehicle equipment | 1 | 1 | — | Unsafe Driving |
| FMCSR:393.104(f)(3) | Cargo securement - tiedown damaged | 1 | 0 | 6 | Vehicle Maintenance |
| FMCSR:393.50(d) | Steering mechanism defective | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:393.45(d) | Brake tubing/hoses inadequate | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:393.45(b)(2) | Brake tubing/hoses inadequate | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.100(c) | Failure to prevent cargo shifting | 1 | 1 | — | Vehicle Maintenance |
| FMCSR:393.60(c) | Glazing/window obstructions | 1 | 0 | 4 | Vehicle Maintenance |
| FMCSR:393.11 | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.43 | Brake - relay emergency valve | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:393.70(d)(8) | Coupling devices defective | 1 | 1 | 8 | Vehicle Maintenance |
Peer Context
This carrier vs national averages. Lower is better for all metrics.
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
Inspection analytics
Monthly cadence, frequent stations, and violation mix
Inspections per month (24 mo)
Most frequent inspection stations
Violations by BASIC category
Recent Crashes
5 crash records from FMCSA Crash File
Crash History (5 records)
| Date | State | Severity | Fatalities | Injuries | City | Location | VIN | Carrier Name at Crash |
|---|---|---|---|---|---|---|---|---|
| Jun 18, 2025 | MN | FATAL | 1 | 3 | MONTICELLO | ISTH 94 | ...C11895 | SIOUX FALLS TOWER SPECIALISTS INC |
| Sep 12, 2024 | IA | INJURY | 0 | 1 | — | 280TH ST | ...E73501 | VIKOR |
| Mar 14, 2022 | IA | INJURY | 0 | 2 | AMES | SOUTH 16TH ST | ...E73501 | VIKOR |
| Dec 18, 2019 | AR | INJURY | 0 | 1 | — | — | — | — |
| Apr 6, 2006 | MN | TOW | 0 | 0 | — | — | — | — |
Compliance Timeline
5 events merged from authority, insurance, enforcement, OOS, crash, MCS-150, and safety rating records