Frontier-Kemper Civil Projects

New Croton Equipment Project

1Contractor: Frontier-Kemper Constructors, Inc.
Owner: Frontier-Kemper/Schiavone/Picone, JV
Location: Bronx, New York

In November 2009, Frontier-Kemper Constructors, Inc. was awarded a contract by the Frontier-Kemper/Schiavone/Picone, JV for the design and fabrication of various shaft and aqueduct equipment. Design and fabrication work includes movable work bridges that will enable two transport vehicles to pass within the 12 ft. 3 in. I.D. brick lined aqueduct, two stage shaft work decks, ventilation control panels, shaft communication systems, special shaft work deck extensions for accessing elliptical portions of the shafts, precast shaft collars for suspending the shaft work decks, permanent steel roof truss systems for two existing structures, and various miscellaneous items necessary to support shaft and underground construction.

Seymour Capilano Pump Panels

1Contractor: Frontier-Kemper Constructors, Inc.
Owner: Seymour-Cap Partnership
Location: North Vancouver, British Columbia

In October 2009, Frontier-Kemper Constructors, Inc. was awarded a subcontract from the Seymour-Cap Partnership (Frontier-Kemper Constructors ULC/J.F. Shea/Aecon Joint Venture) for the design and fabrication of electrical pump panels for the dewatering system at the Seymour Capilano Twin Tunnels Completion Project in North Vancouver, British Columbia. Further analysis by the project team has deemed the existing dewatering setup left by the previous contractor to be inadequate: the project requires that both tunnels be excavated at a 2% downhill grade which makes dewatering extremely critical to the success of the tunnel excavation operation. In all, a total of 41 pump panels will be built to facilitate the new pumping system.

Eastside Access Queens Bored Tunnels

1Contractor: Granite/Traylor/Frontier-Kemper JV
Owner: New York City Metropolitan Transit Authority
Location: Queens, New York

In late September 2009, the Granite/Traylor/FKCI Joint Venture was awarded the contract for the construction of the Eastside Access Queens Bored Tunnels in Queens, New York. Eastside Access is a public works project being undertaken by the Metropolitan Transportation Authority (MTA) in New York City, designed to bring the Long Island Rail Road (LIRR) into a new Eastside station to be built below, and incorporated into, Grand Central Terminal in Manhattan. Scope of work includes the construction of four tunnels 19 ft. 6 in. in diameter with a combined total length of 10,500 ft. The tunnels will be constructed using two softground TBMs. Work also includes excavation of a large open-cut, installation of trackwork and related structures, construction of emergency exit structures, etc.

University Link Light Rail

1Contractor: Traylor Bros./Frontier-Kemper JV
Owner: Sound Transit
Location: Seattle, Washington

In May 2009, the Traylor Bros./Frontier-Kemper Joint Venture received Limited Notice to Proceed to begin preparations for the construction of transit tunnels under Contract U220 for the Sound Transit Authority in Seattle, WA. Contract U220 includes two 18’-10” finished diameter, segmentally lined, bored tunnels between the University of Washington Station (UWS) and the Capitol Hill Station (CHS). The tunnels will each be 11,400 ft. long and will constructed with pressurized face tunnel boring machines. There will be 16 cross passages excavated using sequential excavation methods between the running tunnels. This contract also includes all of the site civil work and installation of slurry diaphragm walls for both the station and crossover boxes for the UWS. Excavation and bracing of the Crossover Box is also included in the contract.

Water Tunnel No. 3 Equipment Installation Project

1Contractor: Picone/Schiavone/Frontier-Kemper/Dragados JV
Owner: New York City Department of Environmental Protection
Location: Manhattan, New York

On April 23, 2009 Picone/Schiavone/Frontier-Kemper/Dragados JV (the “JV”) was awarded Contract 538D – Installation of Equipment and Appurtenances for the Completion of the Manhattan Leg of City Tunnel No. 3 by the New York City Department of Environmental Protection. This is the follow-on contract to the current Schiavone/J.F. Shea/Frontier-Kemper, J.V. water tunnel project - Contract 538C. Under Contract 538D the JV will install 48-inch riser valves and automatic safety controls within each of the ten (10) shafts constructed as part of Contract 538C. In addition, the JV will install 36-inch and 48-inch butterfly valves and stainless steel piping inside the existing subsurface distribution chamber, located at the top of each shaft. Extensive electronic controls will be placed within the chambers and at certain shaft locations. Additional piping will be installed to connect the shafts to existing street water mains. Upon completion of this project, the City will have the ability (after 40 years of construction) to use Water Tunnel No. 3 to provide water to Manhattan Island.

Seymour Capilano Twin Tunnels Project

1Contractor: Seymour-Cap Partnership
Owner: Metro Vancouver
Location: North Vancouver, British Columbia

A Joint Venture consisting of Frontier-Kemper, J. F. Shea, and Aecon submitted a proposal on January 23, 2009 for the completion of two water tunnels for the Greater Vancouver Water District. When completed, the twin 3.8m diameter tunnels will be used to transport raw water in one tunnel from the Capilano reservoir to the Seymour Treatment Plant and the other tunnel will return the treated water to the Capliano water distribution network. Approximately 6,344m total remains to be excavated in the tunnels by two Tunnel Boring Machines under this contract. A large portion of the work will be completed using existing plant and equipment from the Client and a previous contractor. In addition to the TBM tunnel excavation, work also includes tunnel support and control of groundwater; drill and blast excavation of underground chambers; excavation of twin 270m deep, 4m diameter raise bored shafts; installation and backfill grouting of steel lining in all shafts and portions of the tunnels; and interconnection pipes from the shafts to nearby water mains.

New Croton Aqueduct Rehabilitation Project

1Contractor: Frontier-Kemper/Schiavone/Picone, JV
Owner: New York City Department of Environmental Protection
Location: Bronx, New York

In October 2008, the Frontier-Kemper/Schiavone/Picone, JV was awarded a contract by the New York City Department of Environmental Protection for the rehabilitation of the New Croton Aqueduct. The scope of work calls for the rehabilitation of the New Croton Aqueduct from the Croton Lake Gate House just north of Westchester County to Shaft 33 in Manhattan; a length of approximately 30 miles. Work includes cleaning the tunnel lining, brick repairs, crack repairs, grouting, and epoxy coating. Additional work includes rehabilitation of 32 shafts and associated surface and site structures along the tunnel alignment. Work is anticipated to start in January 2009 and take approximately 27 months to complete.

Pearl River Storage & Conveyance Tunnel Project

1Contractor: Triad/FKCI JV
Owner: The City of Lafayette – Department of Public Works
Location: Lafayette, Indiana

The Triad/FKCI JV has been awarded a contract from the City of Lafayette, Department of Public Works in Lafayette, Indiana. Work includes the construction of a 2,000 ft. x 10 ft. diameter tunnel with two work shafts, several drop structures, miscellaneous sewer connections, and a 42 in. microtunnel.

Delaware Aqueduct Rehabilitation Project

1Contractor: Rondout Constructors, JV
Owner: New York City Department of Environmental Protection
Location: New York, New York

In April of 2007, the Joint Venture of Schiavone, Picone, and FKCI (Rondout Constructors, JV) was awarded a contract for the rehabilitation of the Delaware Aqueduct for New York City Department of Environmental Protection. Scope of work includes preparation for what will be a future repair contract for the Rondout – West Branch Tunnel. The Project will also increase the level of readiness if it becomes necessary for NYC to respond to a sudden failure within the tunnel. Work includes installing a new tunnel dewatering system at Shaft No. 6 and performing a 700 ft. deep underwater saturation dive to inspect the bottom of Shaft No. 6 which is presently flooded. The purpose of the dive will be to assess the condition of the access door as well as various existing pipes and valves. Additional work includes installation of all new piping, a hoist system, an electrical substation, and re-anchoring the existing shaft rail.

Brightwater Tunnel Project

1Contractor: Vinci/Parsons/Frontier-Kemper JV
Owner: King County
Location: Seattle, Washington

A Joint Venture of Vinci Construction, Parsons, and Frontier-Kemper is 20 months into the construction of the 4 year, $210M Brightwater Central Conveyance Tunnel Project. Work includes two 14.33 ft. diameter segmentally lined tunnels – one 21,100 LF and the other 11,600 LF; both to be constructed using mix-shield slurry TBMs. Maximum operating pressures will reach 6 bar and hyperbaric interventions up to 5.5 bar, using tri-mix gases, for cutter head access and maintenance are anticipated. The North Kenmore Shaft is the main work shaft. It is 100 ft. deep and 54 ft. in diameter, and is constructed using the reinforced concrete slurry wall method. Both TBMs will be launched from this shaft. The westbound TBM will be retrieved at the Ballinger Way Shaft. This shaft is 200 ft. deep and 30 ft. in diameter and is constructed using the freezewall technique. The eastbound TBM will be retrieved at the North Creek Shaft which was constructed by another contractor. The project also includes 3,400 LF of 3-5 ft. diameter micro-tunneled and cut and cover sewers.

Water Tunnel No. 3 Project

1Contractor: Schiavone/Shea/Frontier-Kemper JV
Owner: New York City Department of Environmental Protection
Location: Manhattan, New York

In December 2004, the Schiavone/Shea/Frontier-Kemper JV, was awarded a $668 million contract by the New York City DEP as part of the ongoing Water Tunnel #3 Project. The work under this contract is in the Borough of Manhattan, New York City, New York. Contract 538C, Excavation and Lining of the Manhattan Portion of City Tunnel No. 3, Stage Two includes excavation of nine shafts (24B – 33B) at 500 VF in depth, excavation of 27,000 LF of tunnel using the same TBM at 12.25 ft. diameter that was used to excavate the 18,000 LF of tunnel for Project 01.10, and concrete lining all 45,000 LF at 10 ft. diameter. In addition, Shaft 33B was moved to another location, further north. This change order increased the footage to be mined in the eastern heading by 1,945 LF.

Bowery Bay Plant Upgrade

1Contractor: Frontier-Kemper/Durr/Perini JV
Owner: New York City Department of Environmental Protection
Location: Queens, New York

Rehabilitation and upgrade of structural and mechanical systems to include open cut excavation, concrete demolition and construction, and process mechanical installation. The project also includes the installation of various sewer and air header pipes, a 60” diversion sewer, eight large capacity sewer pumps, mechanical controls, new process piping within the plant’s underground tunnel system [galleries], construction of numerous operational buildings and the restoration of the plant roadways. In addition, there is extensive work in the plant’s preliminary and final tanks which involves the installation of new weirs and troughs and extensive structural concrete additions and repairs. All of this work must be performed in cooperation with three other contractors [electrical, HVAC and plumbing] who are working concurrently on the site.