Work begins on the company’s first jet grouting job at the First Morris Bank in Morristown, NJ. Vertical and inclined jet grout columns provide underpinning of existing footings as well as excavation support for the new construction.
Two days after the attack on New York City’s World Trace Center, Moretrench is called to Ground Zero to pump out flooded PATH tubes and to install dewatering wells for pressure relief of the damaged bathtub perimeter walls. The company goes on to complete numerous projects during the recovery and rebuilding.
A deep well system dewaters the soils ahead of SEM tunneling for excavation of Seattle’s Beacon Hill Station. At 165 feet below ground surface, this is the deepest station to be excavated in soft ground in North America to date.
Moretrench’s Tampa office constructs a fast-track 150-acre retention pond for a major fertilizer producer.
Moretrench performs permeation grouting, dewatering and groundwater treatment at the Bellmouth launch shaft for the East Side Access Project in Queens, NY. This is the first of several contracts undertaken along various portions of the ESA route into New York City.
At the Wards Island Water Pollution Control Plant in New York, Moretrench uses long-stroke drill rigs to install rock-socketed micropiles at a state-of-the art de-nitrification facility, the first of its kind in the United States.
Permanent soil nailed excavation support facilitates the construction of a Proton Therapy Unit in a vey tight irregular excavation 40 feet deep at the Robert Wood Johnson medical complex in New Brunswick, NJ.
At a phosphate plant in Florida, a sinkhole measuring 300 feet across is stabilized by compaction grouting aided by sonic drilling.
At the Northern Boulevard Crossing in Queens, NY, acknowledged as the most challenging aspect of the entire East Side Access Project, ground freezing provides a protective arch during SEM mining of a tunnel deep below the water table. Compensation grouting for heave/settlement control is a critical part of the overall program.
At Rukert Marine Terminal in Baltimore, MD, installation of a new 1,575-foot long underground storm water drainage system through gasoline-contaminated soils involved drawing on diverse expertise throughout the company to accomplish the extensive pipework, concrete work, dewatering and groundwater treatment.
Moretrench’s rock grouting techniques successfully seal very permeable karstic rock to facilitate mining of three deep shafts for the OARS relief sewer project in Columbus, OH.
In a first-of-a-kind application in North America, Moretrench successfully uses ground freezing to stabilize a highly pervious coralline formation to facilitate the mining of the Port of Miami twin-tunnel cross passages deep below the groundwater table.
In Buenos Aries, Argentina, every attempt had been made over time to halt persistent soil and groundwater ingress into a deep shaft under construction. Ground freezing proved to be the only solution to providing the earth support and groundwater control needed to allow shaft completion.
With a proven history of dewatering fly ash ponds, Moretrench is poised to respond proactively to the new 2014 Federal Regulations mandating a closure deadline, rapidly becoming intensely involved with working with the power manufacturing industry to develop and implement the optimal site-specific pre-drainage plans.
Moretrench installs and operates a ground freezing system deep beneath the Frazer River in Vancouver, B.C. to provide the water tight cut-off needed to allow cutter head access to repair a stalled TBM midway into mining the new Port Mann Water Supply Tunnel.
Horizontal ground freezing aids hand-mining of five cross passages for the Northgate Link of Seattle’s Light Rail transit system. For the first time, the entire system, including the freeze plants, are housed within the extension’s tunnels.
Low headroom and tight access is the challenge during micropile installation of replacement water-based piers supporting a parkway roadbed running beneath historic stone arch bridges crossing the Sawmill River in New York.
Around-the-clock installation of micropile foundation systems is required to support the eight temporary steel jacking towers needed to stabilize the Delaware River Bridge during emergency repairs to a cracked truss.