Interwest Construction, Inc., V. Washington State Dept. Of Labor & Industries

Court of Appeals of Washington·Decided August 24, 2026·No. 88549-9·Unpublished

Opinion

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

INTERWEST CONSTRUCTION, INC., a Washington corporation, No. 88549-9-I

Appellant, DIVISION ONE v. UNPUBLISHED OPINION

WASHINGTON STATE DEPARTMENT OF LABOR & INDUSTRIES,

Respondent.

BIRK, J. — The Department of Labor and Industries (L&I) cited Interwest Construction Inc. for a willful serious violation of WAC 296-155-657(1)(a). On appeal from a Board of Industrial Insurance Appeals (Board) decision and order affirming a corrective notice of redetermination issued by an Industrial Appeals Judge (IAJ), Interwest argues that the Board applied the wrong legal standard for willfulness and that there was not substantial evidence to support a serious or willful violation. Interwest argues the IAJ erred in rejecting Interwest’s unpreventable employee misconduct (UEM) defense, the IAJ erred in excluding L&I’s Division of Occupational Safety and Health compliance manual (DOSH manual), and the Board erred in affirming Interwest’s placement in the Severe Violator Enforcement Program (SVEP). We affirm.

I

In 2021, while working on the Harborview Road and Birch Bay Drive Stormwater Improvements Project (Birch Bay project), dirt from a trench wall fell in and buried Carter up to his neck as he was working in the trench with Interwest foreperson Charles Hornbeck. After an investigation, L&I cited Interwest for a willful serious violation for failing to protect employees in an excavation from a cave-in by not employing an adequate protective system pursuant to WAC 296- 155-657 and fined Interwest $48,000. Interwest appealed, and an IAJ conducted the review hearing.

A

In opening statements, Interwest argued there was no evidence to show the trench was greater than four feet deep to support a willfulness finding. Even if the court found willfulness, it argued it should be able to assert the UEM defense. Regarding the SVEP, it argued referral was inappropriate because of the erroneous willful finding as well as a finding of Interwest having committed a repeat serious violation.

During the hearing, Interwest moved to admit a DOSH manual to show what L&I is required to prove to establish willfulness. The court excluded the manual, concluding Interwest failed to cite authority showing the DOSH manual standards were the legal standards for willfulness.

1

L&I presented testimony by three individuals: Carter, Hornbeck, and L&I Safety and Health Compliance Officer Joel Morder.

Carter testified that he was five feet ten inches tall and on the day he was injured, the trench he was working in was “roughly a foot to half a foot” above his head. He testified that there was no manhole box, trench shield, or trench support system in the trench and that he got into the trench because Hornbeck said, “You and me will hit this in really quick.” Carter testified he was in the trench for about five to ten minutes when the trench collapsed on him and buried him up to his neck. After the collapse Carter was taken to a hospital, where he received treatment in the intensive care unit for broken ribs, a collapsed lung, a bruised and swollen heart, and a swollen heart valve. On cross-examination, Carter testified he had raised a complaint about the width of the trench about a week before the trench cave-in.

Hornbeck testified that the day of Carter’s injury, he was the “competent person”1 and foreperson on site for the job and had received training explaining that a trench collapse could be deadly. When asked how deep he remembered the trench being, he responded it was four feet or less. He testified he was working in the trench when the trench collapsed. On the topic of safety, he testified that Carter and he were the on-site safety people for the day because Carter was the “lead man” and lead pipe layer and that all employees at Interwest have the ability to be involved with safety. Hornbeck testified that the job had site-specific safety meetings every Monday before they began work, and that Carter participated in

1 The IAJ’s order defined “competent person” as an employer designation

indicating a person who is an expert in a high hazard activity and who has taken specialized classes to certify them as experts in safety in that activity.

those safety meetings. He also testified to conducting trench inspections every day.

Morder testified he inspected the Birch Bay project two days after the incident. He conducted an opening conference with Safety Director Dave Hamacher, who reported that he was aware of a cave-in that had occurred when Interwest was installing a storm pipe. Morder tried to inspect the location of the accident, but the trench had been covered and it was difficult to investigate because he could not really see what the actual condition of the trench was. He also spoke with Hornbeck, and testified Hornbeck said he believed the trench was four feet deep. Morder testified that Hornbeck told him shoring was not being used at the time Carter was injured.

2

Interwest presented testimony by two Interwest workers: Civil Superintendent Britton Lukes and Hamacher.

Lukes testified he was the superintendent for the Birch Bay project, and that for the project, he had trench shoring equipment such as trench boxes, manhole boxes, and speed shoring. According to Lukes, Interwest has a safety program that includes a Safety Handbook, an accident prevention program, and a site- specific safety plan, all of which are reviewed with employees. In addition, Lukes testified Hamacher sends out e-mails about national safety topics and that they conduct weekly safety meetings as well as annual safety training. He testified there were no prior violations or incidents regarding shoring at the Birch Bay project site. According to Lukes the only safety complaint he was aware of for the

Birch Bay project was a complaint from Carter about wanting wider trench box spreaders, which to Lukes was not a safety issue.

Lukes testified that upon discovering a water line, Interwest worked with Whatcom County to develop a new plan that allowed the pipe to go over the water line, and this new plan changed the depth of the trench. Lukes was not there at the time of the cave-in and testified that he knew the plans very well but did not know exactly how deep the trench was that day.

Hamacher testified to the extent of Interwest’s safety program. He also described one instance where a jackhammer bit caused something to penetrate an employee’s leg, which required stitches, and that the company response was to change policy and order new parts to “minimize flying and high-hazard impacts.” He discussed his practice if he arrived at a job site where employees were involved in a hazardous act or had an unsafe condition on-site, he would remove them from the hazardous condition and have a conversation with them. He testified that Interwest’s progressive discipline policy—write ups, verbal warning, unpaid time off—varied case-by-case and was supplemented with coaching, mentoring, and a training component. He testified that after the trench cave-in, Hornbeck and the crew received one unpaid day off work and Hornbeck had a meeting with the general superintendent, operations, and the ownership of the company.

Hamacher testified the 2019 citation Interwest received was for a large open-cut excavation. He testified that the hazards involved in an open-cut excavation include soil sloughing, which would push a person out of the way as opposed to soil in a narrow trench pinning the individual against a wall.

Hamacher believed Hornbeck was fully aware of company policy and Washington Administrative Code regulations at the time of the cave-in.

3

The IAJ found L&I met its burden to establish a serious violation, but not a willful violation. The IAJ concluded that because the violation was in an open roadway and Hornbeck knew of it, Interwest had knowledge. The IAJ concluded a willful finding was not warranted because Interwest had a robust safety program.

Both L&I and Interwest appealed to the Board.

B

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