Project Category: Jet Grouting

Bertha Rescue Shaft

Malcolm's Solution for Bertha's Underground Rescue Malcolm Drilling was awarded the support of excavation contract to drill the rescue shaft for Bertha, the world’s largest Tunnel Boring Machine (TBM). Bertha...

Ship Canal Tunnel

Constructing Seattle's Ship Canal Tunnel to Enhance Water Quality The Ship Canal tunnel underground storage is a 2.7-mile stretch from Ballard to Wallingford. The tunnel will prevent an average of...

Port of Long Beach

Jet Grouting Ensures Firehouse Stability The Port of Long Beach is one of the busiest and most important ports on the West Coast of the United States. Due to its...

Purple Line Subway Extension

Metro Purple Line Extension Project: Advancing Transportation in LA The Metro Purple Line Subway Extension is extending the existing subway system nine miles to the west in three phases. The...

PG&E Pipe Jacking Shaft

Pacific Gas & Electric (PG&E) has more than 42,000 miles of gas pipeline throughout California. Some sections, like one of the main lines in Fremont, California, cross major interstates and railroad lines. PG&E...

Portland Avenue

Portland Ave I-5 Tacoma Expansion Improvements The expansion of I-5 through Tacoma was designed to improve safety and add capacity to one of the busiest highways in the region. This...

Block 9

Mastering SOE and CSM Techniques on San Francisco's Block 9 Project Cutter soil mixing, tie-backs, internal bracing, and jet grouting columns were employed in the multi-residential project on Block 9...

Sound Transit U230

Sound Transit’s U230 project was designed to connect Seattle — Tacoma International Airport with the University of Washington by expanding an existing section of rail with twin tunnels. Malcolm Drilling’s...

SR-99 Tunnel Project

SR-99 Tunnel: Construction of the TBM Launching Pit The SR-99 Tunnel Project for the Washington Department of Transportation parallels the waterfront through the south Seattle area and was constructed utilizing...
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