Our History

Al Provost was recruited by Patrick Harrison Construction in Canada to launch an American branch of the company in Denver, which became Harrison Western.
1969

As a result of a project in England, Harrison Western came to the attention of Scotland’s largest civil engineering and construction company, F.J.C. Lilley. Lilley acquired Harrison Western and shifted the focus of work from mining to underground construction of massive public works projects. Al stayed on as President.
1983

Lilley divested their assets and Al became the sole owner of Harrison Western. Our focus was shifted back to mining work, beginning in 1989 with a shaft sinking and headframe construction project at the Collahuasi Mine in northern Chile.
2008

Al passed away at 74 years young, never having retired from work.
2014

Harrison Western received ENR Rocky Mountain Region’s ‘Project of the Year’ and ‘Best of the Best’ awards for the rock cut at the Twin Tunnels Widening Project on I-70 near Idaho Springs, Colorado.
1968

Harrison Western was awarded its first 1,700-foot shaft sinking project at the Blackhawk Mine in Leadville, Colorado.
1980

Harrison Western completed the sinking of the No. 5 Shaft at the Henderson Mine near Empire, Colorado. The shaft was 34 feet in diameter and 2,600 feet deep.
1988

Al brought Chris Hassel on board to Harrison Western as President and COO.
2010

Harrison Western acquired
Underground Infrastructure Technologies (UIT).
2016
1968
1969
1980
1983
1988
2008
2010
2014
2016

Al Provost was recruited by Patrick Harrison Construction in Canada to launch an American branch of the company in Denver, which became Harrison Western.

Harrison Western was awarded its first 1,700-foot shaft sinking project at the Blackhawk Mine in Leadville, Colorado.

As a result of a project in England, Harrison Western came to the attention of Scotland’s largest civil engineering and construction company, F.J.C. Lilley. Lilley acquired Harrison Western and shifted the focus of work from mining to underground construction of massive public works projects. Al stayed on as President.

Harrison Western completed the sinking of the No. 5 Shaft at the Henderson Mine near Empire, Colorado. The shaft was 34 feet in diameter and 2,600 feet deep.

Lilley divested their assets and Al became the sole owner of Harrison Western. Our focus was shifted back to mining work, beginning in 1989 with a shaft sinking and headframe construction project at the Collahuasi Mine in northern Chile.

Al brought Chris Hassel on board to Harrison Western as President and COO.

Al passed away at 74 years young, never having retired from work.

Harrison Western acquired
Underground Infrastructure Technologies (UIT).

Harrison Western received ENR Rocky Mountain Region’s ‘Project of the Year’ and ‘Best of the Best’ awards for the rock cut at the Twin Tunnels Widening Project on I-70 near Idaho Springs, Colorado.