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

OSHA Inspection: MAINLINING SERVICE, INC.

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of MAINLINING SERVICE, INC. in 1900 S. CORONA STREET, DENVER, CO 80210 (NAICS 237110). OSHA activity number 330293911.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
1900 S. CORONA STREET
City
DENVER
State
CO
ZIP
80210
Mailing
P.O. BOX 96, ELMA, NY 14059
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
237110
Employees
17
Ownership type
A

2 citations on file for this inspection.

1926.200 G02

Serious Gravity 5 2 instances 4 exposed
Issued
May 6, 2011
Abate by
May 16, 2011
Penalty
Initial $3,250 · Current $1,950 Reduced
29 CFR 1926.200(g)(2):  The employer did not ensure that all traffic control signs or devices used for protection of construction workers conformed to Part VI of the Manual of Uniform Traffic Control Devices (MUTCD) Millenium Edittion, December 2000:         a)  Mainlining Service, Inc. at 1900 S. Corona St., Denver, CO 80210:  On or before April 26, 2011, the employer did not ensure that advanced warning signs conformed to the MUTCD in that employees were working in two work zones involving two trenches without adequate signage.  The employer did not have advanced warning signs on the south side (northbound on S. Corona St.).  In addition, the only advanced warning sign for the West side (eastbound on Jewell Ave.) was 5 blocks away on Pearl St.  Only one sign was in place on the north and east sides of the intersection.  Conditions exposed employees to struck-by hazards.    Abatement note:  Abatement certification is required for this item (see enclosed ,"Sample Abatement-Certification Letter").    Abatement note:  The MUTCD Section 6B.01 provides that the control of road users through a temporary traffic control zone shall be an essential part of high construction, utility work, maintenance operations, and incident management.  Sections 6C.03 and 6C.04 discuss the requirements associated with advance warning areas, providing that the advanced warning area is that section of the road where users are informed about the upcoming work zone or incident area.  Typical Application 6H-21 illustrates the signage and barriers for a lane closure on the near side of an intersection, and is applicable to the trench on Jewell Ave.  Typical Application 6H-22 Illustrates the right lane closure on the far side of the intersection, and is applicable to the trench on S. Corona St.
Recent events (2)
  • — I (S) $1950
  • — Z (S) $3250

1926.202

Serious Gravity 5 2 instances 4 exposed
Issued
May 6, 2011
Abate by
May 20, 2011
Penalty
Initial $3,250 · Current $1,950 Reduced
29 CFR 1926.202:  The employer did not ensure that all barricades for protection of construction workers conformed to Part VI of the Manual of Uniform Traffic Control Devices (MUTCD) Millenium Edition, December 2000:         a)  Mainlining Service, Inc. at 1900 S. Corona St., Denver, CO 80210:  On or before April 26, 2011, the employer did not ensure that the barricades in use conformed to Part VI of the MUTCD in that no tapers were used to direct traffic away from two work zones involving two trenches on two different lanes at this intersection.   Conditions exposed employees to struck-by hazards.    Abatement note:  Abatement certification is required for this item (see enclosed ,"Sample Abatement-Certification Letter").    Abatement note:  The MUTCD Section 6C.08 discusses the requirements associated with temporary traffic control zones, including the use of tapers with channelizing devices to move traffic out of or into normal paths.  Section 6F.55 desribes the use of cones and other barricades to serve as channelizing devices.  Typical Application 6H-21 illustrates the signage and barriers for a lane closure on the near side of an intersection, and is applicable to the trench on Jewell Ave.  Typical Application 6H-22 Illustrates the right lane closure on the far side of the intersection, and is applicable to the trench on S. Corona St.
Recent events (2)
  • — I (S) $1950
  • — Z (S) $3250

View Mainlining Service, 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 330293911.

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