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

OSHA Inspection: UNITED CONSTRUCTION LLC

Referral inspection · Safety discipline

On , OSHA opened a referral safety inspection of UNITED CONSTRUCTION LLC in 9310 YUCCA WAY, THORNTON, CO 80229 (NAICS 236115). OSHA activity number 341868313.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
9310 YUCCA WAY
City
THORNTON
State
CO
ZIP
80229
Mailing
6460 S. QUEBEC ST., CENTENNIAL, CO 80111
Inspection type
Referral (C)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
236115
Employees
8
Ownership type
A

6 citations on file for this inspection.

1926.100 A

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
Penalty
Initial $2,138 · Current $1,390 Reduced
29 CFR 1926.100(a): Employees were not protected by protective helmets while working in areas where there was a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns:    (a) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that employees were provided protective helmets, while working in areas where there was a possible danger of head injury from falling objects.  An employee worked in a trench that was 10 feet deep but the spoil pile was not at least two feet from the edge of the excavation. This condition exposed the employees to the hazard of spoil pile material falling and striking the employees head.      Abatement Note: The employer must provide each employee with head protection that meets the specifications contained in any of the following consensus standards:  -American National Standards Institute (ANSI) Z89.1-2009, "American National Standard for Industrial Head Protection," incorporated by reference in �1926.6;    -American National Standards Institute (ANSI) Z89.1-2003, "American National Standard for Industrial Head Protection," incorporated by reference in �1926.6; or    -American National Standards Institute (ANSI) Z89.1-1997, "American National Standard for Personnel Protection-Protective Headwear for Industrial Workers-Requirements," incorporated by reference in �1926.6.
Recent events (2)
  • — I (S) $1390
  • — Z (S) $2138

1926.651 J02

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
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) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that the spoil pile was at least two feet from the edge of the trench. The trench measured approximately 50 feet in length with an 80 degree bend in the middle, 18 feet in width on the east end, 12 feet in width on the west end, and 10 feet in depth. This condition exposed the employee to the hazard of spoil pile material falling into the trench or causing the trench wall to collapse.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1926.651 B02

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
Penalty
Initial $2,672 · Current $1,737 Reduced
29 CFR 1926.651(b)(2): Utility companies or owners were not contacted within established or customary local response times, advised of the proposed work, and asked to establish the location of the utility underground installations prior to the start of an actual excavation:     (a) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that each employee conducting work in the trench were protected from striking utility lines by having the lines located prior to work. The trench measured approximately 50 feet in length with an 80 degree bend in the middle, 18 feet in width on the east end, 12 feet in width on the west end, and 10 feet in depth. The condition resulted in an employee striking a gas line and exposed an employee to gas hazards.
Recent events (2)
  • — I (S) $1737
  • — Z (S) $2672

1926.651 C02

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
Penalty
Initial $2,138 · Current $1,390 Reduced
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) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that a stairway, ladder, ramp or other safe means of egress was provided to employees that worked in a trench that was approximately 50 feet in length with an 80 degree bend in the middle, 18 feet in width on the east end, 12 feet in width on the west end, and 10 feet in depth.
Recent events (2)
  • — I (S) $1390
  • — Z (S) $2138

1926.651 K01

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
Penalty
Initial $2,672 · Current $1,736 Reduced
29 CFR 1926.651(k)(1): Daily inspections of excavations, the adjacent areas, and protective systems were not made by a competent person for evidence of a situation that could have resulted in possible cave-ins, indications of failure of protective systems, hazardous atmosphere and other hazardous conditions:    (a) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that daily inspections of a trench, that was approximately 50 feet in length with an 80 degree bend in the middle, 18 feet in width on the east end, 12 feet in width on the west end, and 10 feet in depth were made by a competent person for evidence of a situation that could have resulted in a hazardous condition, in that the competent person did not identify that the trench had a single bench on each side with an approximate height of 5 feet and width of 2 feet and contained type B soil. This condition exposed employees to a crushing hazard by trench wall cave-in.     Abatement Note:  "Competent person" means one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.
Recent events (2)
  • — I (S) $1736
  • — Z (S) $2672

1926.652 B02

Serious Gravity 5 1 instance 1 exposed
Issued
Dec 13, 2016
Abate by
Jan 17, 2017
Penalty
Initial $0 · Current $0
29 CFR 1926.652(b)(2): Maximum allowable slopes, and allowable configuration of sloping and benching systems, were not determined in accordance with the conditions and requirements set forth in Appendices A and B to this subpart:  (a) United Construction LLC at 9310 Yucca Way, Thornton, CO 80229: On and before October 26, 2016, the exposing employer did not ensure that each employee working inside a trench that was approximately 50 feet in length with an 80 degree bend in the middle, 18 feet in width on the east end, 12 feet in width on the west end, and 10 feet in depth was protected from cave-in, in that the trench had a single bench on each side with an approximate height of 5 feet and width of 2 feet and contained type B soil. This condition exposed employees to a crushing hazard by trench wall cave-in.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

View United Construction LLC'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 341868313.

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