STACK BROS MECHANICAL CONTRACTORS INC
USDOT 1280175 • DBA: STACK BROS • 3119 HILL AVE, SUPERIOR, WI, 54880
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
| Authority Type | Docket # | Status | Original Date | Final Date |
|---|---|---|---|---|
| Common Carrier | MC-1583591 | ACTIVE | Unknown | Unknown |
No insurance filings found for this carrier in FMCSA records.
Authority Action History (1 events)
| Docket | Authority Type | Original Action | Served Date | Disposition | Decided Date |
|---|---|---|---|---|---|
| MC1583591 | MOTOR PROPERTY COMMON CARRIER | GRANTED | Oct 12, 2023 | — | Unknown |
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
3 states • 23 inspections
Violation Summary (48 violations from 23 inspections)
| Code | Description | # Violations | # OOS | Severity Wt | BASIC |
|---|---|---|---|---|---|
| FMCSR:392.2 | Operating a CMV while ill or fatigued | 9 | 0 | 8 | Unsafe Driving |
| FMCSR:393.48(a) | Inoperative/defective brakes | 4 | 0 | 8 | Vehicle Maintenance |
| FMCSR:393.48A-BIBD | Inoperative/defective brakes | 2 | 0 | 8 | Vehicle Maintenance |
| FMCSR:393.75A3-TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | 2 | 2 | — | Vehicle Maintenance |
| FMCSR:393.9A-LCL | Inoperable required lamps | 2 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.45B2-B-AIR | Brake tubing/hoses inadequate | 2 | 0 | 7 | Vehicle Maintenance |
| FMCSR:396.3(a)(1) | Inspection/repair/maintenance - general | 2 | 2 | 5 | Vehicle Maintenance |
| FMCSR:392.16(a) | Failing to use seat belt (49 CFR) | 2 | 0 | 3 | Unsafe Driving |
| FMCSR:393.48A-BLMACBD | Inoperative/defective brakes | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:396.3A1-BOS | 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:392.2-SLLS3 | Speeding 11-14 mph over limit | 1 | 0 | 7 | Unsafe Driving |
| FMCSR:391.11B4 | Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or | 1 | 1 | — | Driver Fitness |
| FMCSR:396.5B-L | Fuel system leak | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:392.16-D | Failing to use seat belt (49 CFR) | 1 | 0 | 3 | Unsafe Driving |
| FMCSR:393.55C2-B | Coupling device/towing methods defective | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:393.43(d) | Brake - relay emergency valve | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:393.110(b) | Cargo securement - logs | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:395.8(f)(1) | Drivers record of duty status not current | 1 | 0 | — | Hours Of Service |
| FMCSR:393.95(a)(4) | 393.95(a)(4) | 1 | 0 | — | Vehicle Maintenance |
| FMCSR:393.95(a) | Emergency equipment - fire extinguisher missing/defective | 1 | 0 | 5 | Vehicle Maintenance |
| FMCSR:396.17(c) | No proof of periodic inspection | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.75(c) | Tire tread depth insufficient (other axles) | 1 | 0 | 5 | Vehicle Maintenance |
| FMCSR:393.55(d)(3) | Coupling device/towing methods defective | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:396.17C-PI | No proof of periodic inspection | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.45B2-B | Brake tubing/hoses inadequate | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.47(e) | Slack adjuster defective | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.53(b) | Steering system components worn | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.55(e) | Coupling device/towing methods defective | 1 | 0 | 8 | Vehicle Maintenance |
| FMCSR:393.207(a) | Suspension defective | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.11 | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.75(a)(3) | Tire-flat and/or audible air leak | 1 | 1 | — | 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 (23 inspections)
Inspection analytics
Monthly cadence, frequent stations, and violation mix
Inspections per month (24 mo)
Most frequent inspection stations
Violations by BASIC category
Recent Crashes
1 crash record from FMCSA Crash File
Crash History (1 records)
| Date | State | Severity | Fatalities | Injuries | City | Location | VIN | Carrier Name at Crash |
|---|---|---|---|---|---|---|---|---|
| Apr 15, 2015 | MN | TOW | 0 | 0 | — | — | — | — |
Compliance Timeline
1 event merged from authority, insurance, enforcement, OOS, crash, MCS-150, and safety rating records