Earth Retention Systems

University Link Light Rail U230

University Link Light Rail U230

Scope

Michels Construction, Inc. was part of an integrated joint venture responsible for executive management field supervision and engineering on the Central Puget Sound Regional Transit Authority's University Link Light Rail Extension Project. The project extends light rail service from Capitol Hill to downtown Seattle and the airport. Michels' scope of work included the excavation and installation of twin precast concrete segment tunnels. Each of the tunnels are approximately 3,800 linear feet, and 18'10" in diameter. They were excavated to depths ranging from more than 13 feet to less than 18 feet, where they crossed underneath Interstate 5. Nearly the entire tunnel alignment consists of horizontal and vertical curves with the tightest curve radius being only 550 feet.

  • Michels was part of an integrated joint venture responsible for executive management field supervision and engineering on the Central Puget Sound Regional Transit Authority's University Link Light Rail Extension Project.

Projects

Michels constructed secant compression ring launch and receiving shafts for a microtunneling project. The launch shaft was comprised of 46 intersecting 1-meter-diameter secant piles drilled to a depth of 54 feet. The receiving shaft was comprised of 38 intersecting 1-meter-diameter piles drilled to a depth of 52 feet.

Tunneling

Conduit 16 launch and receiving shafts

Colorado

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Conduit 16 launch and receiving shafts

Michels was construction manager for a project which included construction of the 38th Street ventilation facility, trail track tunnels and cross passages, Grand Central Terminal interlocking caverns, portions of the Grand Central Terminal main station caverns, escalator shaft interfaces and access tunnels.

Tunneling

Manhattan South Structures

New York

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Manhattan South Structures

Michels was part of a joint adventure that constructed a 5-mile long, 15-foot diameter tunnel under San Francisco Bay.

Tunneling

Bay Tunnel

California

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Bay Tunnel

Michels used microtunneling to build a 485-foot-long, 6-foot diameter tunnel under a major four-lane highway.

Tunneling

Mary Hill Bypass

Canada

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Mary Hill Bypass

Michels is part of an integrated joint venture, responsible for the executive management, areas of field supervision, and heading engineer positions on the Central Puget Sound Regional Transit Authority's Northgate Link Extension Project.

Tunneling

North Gate Extension Light Rail N125

Washington

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North Gate Extension Light Rail N125

Quality means doing it right
when no one is looking.

Henry Ford

We do that.

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