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

OSHA Inspection: MAC STEEL ERECTION AND WELDING SERVICE INC.

Unprogrammed Other inspection · Safety discipline

On , OSHA opened an unprogrammed Other safety inspection of MAC STEEL ERECTION AND WELDING SERVICE INC. in 17290 NORTH OUTER 40, CHESTERFIELD, MO 63005 (NAICS 238120). OSHA activity number 342020633.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
17290 NORTH OUTER 40
City
CHESTERFIELD
State
MO
ZIP
63005
Mailing
600 SCHMELZ DRIVE P.O BOX 317, EUREKA, MO 63025
Inspection type
Unprogrammed Other (I)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
A
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
238120
Employees
7
Ownership type
A

1 citation on file for this inspection.

1926.451 A01

Other-than-serious 1 instance 1 exposed
Issued
Jan 17, 2017
Abate by
Feb 3, 2017
Penalty
Initial $3,803 · Current $2,852 Reduced
29 CFR 1926.451(a)(1):     Scaffold(s) and scaffold(s) component(s) were not capable of supporting, without failure, its own weight and at least four times the maximum intended load applied or transmitted to it:    On 1/9/2017, An employee from Mac Steel Erection and Welding Service Inc. was welding metal beams together at a commercial building located at 17290 North Outer 40, Chesterfield, MO.  The employee was working from a scissor lift approximately fifteen feet above the ground.  The employee while performing welding operations was witnessed standing, for several minutes on the midrail of the scissor lift, in an attempt to gain additional height to perform his work.
Recent events (2)
  • — I (O) $2852.25
  • — Z (S) $3803

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 342020633.

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