projects Category: CONCRETE

HIGH STREET DAM REMOVAL AND BRIDGE REPLACEMENT

Located in Bridgewater, MA, the High Street Dam was rated as a Significant Hazard by the MA Office of Dam Safety for impeding migratory fish passage, interrupting natural river processes, and contributing to local flooding. Manafort Transit was selected to remove the existing 12 ft high and 80 ft wide dam across the Town River and replace the 170 year old High Street Bridge to withstand 500-year floods.

 

Manafort’s demolition scope included the design and installation of a temporary cofferdam, consisting of 3,000 lb sandbags, to temporarily divert and relocate Town River to facilitate the demolition of the existing dam and appurtenances under fully dewatered conditions. Manafort was required to selectively demolish and salvage portions of the historic dam for re-use on site.

Manafort’s bridge replacement scope included the construction of two new cast in place concrete bridge abutments and wingwalls supported by 3 ft diameter drilled shaft foundations. The new bridge superstructure included structural steel framing and a cast in place concrete deck. In addition, Manafort relocated gas, sanitary sewer, storm drainage, and water main utilities and constructed all site finishes on the project including reprofiling of the river channel, extensive river bank restoration, concrete sidewalks, and bituminous pavement.

 

The Manafort team’s extensive demolition and construction experience, in addition to close coordination with all project stakeholders and agencies, aided in the environmentally sound,  safe, successful , on-time, and on-budget completion of this project.

CTDOT NOROTON HEIGHTS RAILROAD STATION PLATFORM REPLACEMENT

CTDOT Project 0301-0170 – Noroton Heights Railroad Station Platform Replacement Project located at the Noroton Heights Railroad Station along the Metro-North commuter line on the Northeast Corridor in Darien, CT, involved the replacement of the existing railroad station platforms along Track 3 (New York Bound) and Track 4 (New Haven Bound). Manafort Brothers, Inc. was selected to upgrade the railroad station by raising the existing platforms, as well as the associated access stairways, ramps, and railroad station appurtenances in disrepair, to be compliant with the Americans with Disabilities Act.

 

Manafort’s demolition scope of work included removal and disposal of the existing precast concrete double tee flange railroad station platforms, stairs, ramps, and train passenger shelters along the train tracks. In order for the Noroton Heights Railroad Station to remain operational during construction, Manafort extensively coordinated with the Metro-North Railroad in order to keep the railroad station operational during construction. The work was required to be completed in several phases and during nightly track outages due to the proximity to the train tracks and overhead electrified catenary systems.

Manafort’s train platform scope of work included foundation upgrades, structural steel framing, cast in place concrete train platforms with embedded tactile warning surface, stairs, ramps, rub rail installation, ornamental railing, signage, and new passenger shelters. Manafort value engineered the platform design to be a cast in place structure in lieu of large prefabricated precast concrete elements to allow construction with smaller and less intrusive equipment minimizing impacts on railroad operations. In addition, potential delays due to unforeseen conditions were successfully mitigated by Manafort’s proven ability to increase labor and equipment resources on the project whenever necessary to be able to combine project phases and accelerate the project schedule.

 

Manafort served as the Prime Contractor on this project and self-performed major aspects of the project including train platform and railroad station appurtenance demolition, structural excavation, backfill, cast in place concrete train platform decks, foundation upgrades, stairs, handicap ramps, and sidewalks. All work was completed safely,  successfully, on-time, and on-budget through extensive coordination with the Metro-North Railroad and the CTDOT.

CTDOT I-691 RESURFACING, BRIDGE REHABILITATION AND SAFETY IMPROVEMENTS

CTDOT Project 0079-0244  – I-691 Resurfacing, Bridge Rehabilitation and Safety Improvements was a major highway and bridge rehabilitation Design Build project aimed to improve travel conditions and increase safety for all users along the I-691 corridor from Meriden to Southington, CT. Manafort Brothers, Inc. was selected to make these critical repairs to the existing roadway and bridge infrastructure along I-691 under this Design Build contract.

Manafort’s scope of work included concrete pavement repairs, drainage improvements, bridge rehabilitation of 14 bridges, 17,000 SY of bridge deck waterproofing membrane replacement, illumination upgrades, new overhead highway signage, highway resurfacing and highway safety improvements along a 9 Mile stretch of   I-691 Eastbound and Westbound.

 

The Manafort Design Build Team engineered and constructed cross slope correction to meet current roadway design standards as well as roadside upgrades to meet current MASH Safety standards.

Manafort’s leadership throughout the design development, permit application phase, quality control plan implementation, coordination with all project stakeholders, and overall construction execution  led to the safe, successful, on-time, on-budget, and award-winning delivery of this design build project.

CTDOT MERRITT PARKWAY BRIDGE REHABILITATION AND SAFETY IMPROVEMENTS

CTDOT Project 0158-0207 – Merritt Parkway Safety and Bridge Improvements located between Westport and Fairfield, CT, involved the rehabilitation of 10 mile of the Merritt Parkway, a National Scenic Byway listed in the National Register of Historic Places. Manafort Brothers, Inc. was selected to perform this multi-site, challenging project involving the rehabilitation of 10 historic bridge structures back to their original aesthetic and architectural features through detailed restoration work while actively managing challenging traffic conditions on the Merritt Parkway.

Manafort’s highway scope of work involved complex and daily traffic control and signing patterns, resurfacing, roadway rehabilitation, and complete highway drainage system replacement. Additional highway improvements included cross slope correction, removal of rock ledges and other fixed objects, installation of 40,000 LF of slip-formed concrete curb and gutter, full-depth concrete pavement replacement, patching of other deteriorated roadway, and 46,000 tons of hot mix asphalt (HMA) resurfacing.

 

Manafort’s bridge rehabilitation scope of work included the rehabilitation of the steel arch superstructure for Bridge 00728 over the Saugatuck River to upgrade the integrity of the severely deteriorated steel arch rib. The concrete substructure repairs required temporary supports in order to maintain active traffic and to facilitate bearing rehabilitation. In addition, the Merritt Parkway project required restoration and painting of multiple, aesthetically unique bridge superstructures where paint colors and concrete tones mirrored the existing construction.

 

Manafort served as the Prime Contractor and self-performed major aspects of the project including maintenance and protection of traffic, concrete bridge rehabilitation, drainage upgrades, roadway reconstruction, and slip-formed concrete curb. All work was completed safely, successfully, on-time, and on-budget through extensive coordination with the CTDOT.