Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: STACK BROS. MECHANICAL CONTRACTORS, INC.

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of STACK BROS. MECHANICAL CONTRACTORS, INC. in 600 N. 21ST STREET, SUPERIOR, WI 54880 (NAICS 238220). OSHA activity number 344218524.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
600 N. 21ST STREET
City
SUPERIOR
State
WI
ZIP
54880
Mailing
3119 HILL AVENUE, SUPERIOR, WI 54880
Inspection type
Planned (H)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
A
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
238220
Employees
175
Ownership type
A

5 citations on file for this inspection.

1926.651 C02

Other-than-serious 1 instance 2 exposed
Issued
Dec 2, 2019
Abate by
Dec 12, 2019
Penalty
Initial $7,500 · Current $12,500
29 CFR 1926.651(c)(2): A stairway, ladder, ramp or other safe means of egress was not located in trench excavations that were 4 feet (1.22m) or more in depth so as to require no more than 25 feet (7.62m) of lateral travel for employees:    (a) Excavation at WITC in Superior, WI; A means of egress was not accessible within 25 feet of the area where welding operations were performed inside an excavation.
Recent events (3)
  • — F (O) $12500
  • — C (S) $7500
  • — Z (S) $7500

1926.1053 B01

Other-than-serious Gravity 5 1 instance 2 exposed
Issued
Dec 2, 2019
Abate by
Dec 12, 2019
Penalty
Initial $0 · Current $0
29 CFR 1926.1053(b)(1): Where (a) portable ladder(s) was/were used for access to an upper level landing surface and the ladder's length did not allow the ladder side rails to extend at least 3 feet (0.9 m) above the upper landing surface being accessed, the ladder was not secured at its top to a rigid support that will not deflect, and/or a grasping device was not provided to assist employees in mounting and dismounting the ladder:  (a) Excavation at WITC in Superior, WI; Side rails of six and ten foot stepladders did not extend at least 3 feet above the top edge of an excavation (upper landing surface) and the ladder was not secured at the top to prevent displacement.
Recent events (3)
  • — F (O) $0
  • — C (S) $0
  • — Z (S) $0

1926.1053 B04

Other-than-serious Gravity 5 2 instances 2 exposed
Issued
Dec 2, 2019
Abate by
Dec 12, 2019
Penalty
Initial $0 · Current $0
29 CFR 1926.1053(b)(4): Ladders were used for purposes other than the purposes for which they were designed:  (a) Excavation at WITC in Superior, WI; Six and ten foot stepladders (self-supporting ladders) were setup in the closed position and used as non-self-supporting ladders.
Recent events (3)
  • — F (O) $0
  • — C (S) $0
  • — Z (S) $0

1926.652 A01

Other-than-serious 1 instance 2 exposed
Issued
Dec 2, 2019
Abate by
Dec 12, 2019
Penalty
Initial $13,127 · Current $13,127
29 CFR 1926.652(a)(1): Each employee in an excavation was not protected from cave-ins by an adequate protective system designed in accordance with 29 CFR 1926.652 (b) or (c):    (a) Excavation at WITC in Superior, WI; Cave-in protection was not used while welding operations were performed inside an excavation.
Recent events (3)
  • — F (O) $13127
  • — C (S) $13127
  • — Z (S) $13127

1926.651 J02

Other-than-serious 1 instance 2 exposed
Issued
Dec 2, 2019
Abate by
Dec 12, 2019
Penalty
Initial $0 · Current $0
29 CFR 1926.651(j)(2): Protection was not provided by placing and keeping excavated or other materials or equipment at least 2 feet (.61m) from the edge of excavations, or by the use of retaining devices that were sufficient to prevent materials or equipment from falling or rolling into excavations, or by a combination of both if necessary:  (a) Excavation at WITC in Superior, WI; Spoil pile materials placed less than two feet from the excavation edge were not retained to prevent them from rolling into the excavation while welding operations were performed inside an excavation.
Recent events (3)
  • — F (O) $0
  • — C (O) $0
  • — Z (O) $0

View Stack Bros. Mechanical Contractors, INC.'s full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 344218524.

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