ALTERNATIVE PROJECT DELIVERY Archives

STAMFORD TRANSPORTATION CENTER PARKING GARAGE DEMOLITION

Manafort Brothers, Inc. was retained by the Connecticut Department of Transportation to demolish a structurally compromised parking garage at the Stamford Rail Station. The 1985 garage was physically connected to a 2004 garage and shared utilities, PARC systems, and pedestrian and vehicular access points. It also supported a pedestrian bridge directly tied to the station and spanning a high-traffic roadway, requiring extensive pre-demolition coordination.

Prior to demolition, MBI executed significant utility modifications, including construction of a new Headend room, installation of new utilities and PARC systems, and full integration with a recently built parking facility—completed without interrupting station operations or impacting traffic and parking demands.

Due to the garage’s post-tensioned concrete structure, proximity to active facilities, and the bridge connection over a live roadway, MBI implemented detailed engineering analyses, shoring designs, and a comprehensive demolition plan. Work began with the controlled removal of the pedestrian bridge and precast support beams, followed by installation of sacrificial shoring and surgical separations from adjacent structures using a remote-controlled excavator. Once buffer zones were established, mechanical demolition proceeded utilizing a specialized 207,000-lb excavator equipped with a 10,200-lb pulverizing tool to safely remove the structure to a depth of 4 feet below grade.

Upon completion of demolition, MBI performed extensive site and roadway restoration, including new utilities, curbing, sidewalks, lighting, pedestrian safety enhancements, drainage improvements, and roadway milling and paving. Final site grading and landscaping prepared the area for future development, restoring a critical transportation hub safely, efficiently, and with minimal disruption.

All work was completed safely, on time, and with minimal impact to the active Stamford Transportation Center.

RIDOT I-95 PROVIDENCE VIADUCT NORTHBOUND

The Rhode Island Department of Transportation I-95 Providence Viaduct Northbound Design-Build Project in Providence involved the full replacement of the seven-span Bridge No. 578 on I-95, as well as the replacement, widening, and rehabilitation of 10 additional bridges along the corridor. As part of a Joint Venture, Manafort Brothers, Inc. was selected as the Design-Build Prime Contractor to deliver this complex project within one of the state’s most heavily traveled interstate sections.

The design-build team developed an innovative traffic configuration through the I-95 interchange to reduce congestion and weaving for the 200,000 vehicles per day that travel through this interchange in downtown Providence. The project includes construction of a 1,290-foot viaduct bridge featuring two I-95 express lanes, three collector-distributor lanes, and on-ramp connections from Route 6/10 and downtown Providence. Additional work includes replacement of Bridge No. 703 (RI-146 over I-95), Bridge No. 701 (Smith Street over I-95), and Bridge No. 1379 (Atwells Avenue on-ramp to I-95 Northbound).

The team utilized Accelerated Bridge Construction (ABC) techniques, including Prefabricated Bridge Units (PBUs) over the Amtrak right-of-way, to efficiently widen Bridge No. 706. To address challenging geotechnical conditions, ultra-light foam glass aggregate (ULFGA) fill was incorporated into mechanically stabilized earth (MSE) walls to achieve net-zero loading.

As Design-Build Prime Contractor, Manafort self-performed a majority of the work, including excavation, substructure concrete rehabilitation, superstructure concrete, drainage, and roadway construction. Leveraging extensive design-build expertise. The project was successfully completed safely, on budget, and on schedule.

PORT OF DAVISVILLE – TERMINAL 5 PIER CONSTRUCTION

The Quonset Development Corporation’s Port of Davisville Terminal 5 Pier Design-Build Project marks the first new pier construction at Quonset in nearly 70 years. Manafort Brothers and Manafort Transit were contracted to construct the approximately 1,200-foot-long pier, which includes a 690-foot-long, variable-width pile-supported platform; a series of mooring and breasting dolphins connected by aluminum catwalks; and new blue economy support docks and a boat ramp.

Manafort’s scope of work includes installation of more than 200 steel pipe piles, pile trimming, installation of pipe jackets, concrete placement for pile plugs, excavation and backfill, placement of precast pile caps and planks, installation of underwater anodes, and construction of the concrete topping deck.

Serving as the Design-Build Prime Contractor, Manafort is self-performing a majority of the work, including pile driving, civil and utility activities, and installation of precast pier components. Manafort’s extensive port and marine construction experience continues to advance the project toward safe, on-budget, and on-schedule delivery.

RIDOT WOONASQUATUCKET RIVER BRIDGE

The Rhode Island Department of Transportation Woonasquatucket River Bridge Design Build Project, located in Providence, involved the full superstructure replacement of the single span Bridge No. 604 on US Route 6. Manafort Brothers, Inc. was selected as the Design Build Prime Contractor to design and construct the bridge replacement on an aggressive schedule.

Demolition work included the removal of the existing bridge superstructure over the Woonasquatucket River using tandem crane picks during an overnight closure. The bridge construction scope of work included substructure concrete rehabilitation, new steel plate girders, a reinforced concrete bridge deck, cast-in-place concrete end posts, approach slabs, highway paving, line striping, landscaping, and maintenance and protection of traffic. As traffic on US Route 6 was required to be maintained with two travel lanes in each direction, all construction was carried out over two stages to complete the work.

Manafort served as the Design Build Prime Contractor for the project and self-performed a majority of the work including demolition, excavation, concrete substructure rehabilitation, superstructure concrete, drainage, and roadway construction. Manafort’s extensive design build experience aided in this project being delivered safely, successfully, ahead of schedule. and on-budget.