Picture courtesy of CTDOT
A Caterpillar 352 with a teledipper attachment and a Caterpillar long-reach excavator paintings on secant excavation within the southeast quadrant.
As building paintings continues at the WALK bridge, the Connecticut Division of Transportation (CTDOT) introduced the TIME-2 undertaking that comes to the rebuild or renovation of 4 further bridges on or close to the Metro-North Railroad (MNR) New Haven Line (NHL) in East Norwalk.
Picture courtesy of CTDOT
CTDOT’s Monitor Growth Mobility Enhancement TIME-2 Mission is a subcomponent of the WALK bridge alternative undertaking.
CTDOT awarded the undertaking to the Cianbro-Middlesex Joint Project, which hyperlinks the Cianbro Corp. of Pittsfield, Maine, with Middlesex Building of Littleton, Mass.
The TIME-2 undertaking comprises the Fortress Level Side road railroad bridge, the East Road railroad bridge, the Osborne Road railroad bridge and the Strawberry Hill Road bridge.
Web site preparation, mobilization and reinforce of excavation paintings began in December 2023. Main building actions commenced in early spring 2024.
“The contractor has put in micropiles to reinforce excavation and finished some bridge seat adjustments at probably the most native TIME-2 bridges,” stated Rory McGlasson, spokesperson of WSP, an engineering company this is CTDOT’s program control guide for the WALK bridge Time-2 undertaking. “That paintings began in early January to March 2024. Paintings on 4 bridges will ramp up … round past due July this yr. The TIME-2 native bridges must be finished in early 2028.”
The Fortress Level Side road railroad bridge will probably be changed with a 42-ft., four-track span, expanding the roadway width whilst holding the present vertical clearance. Roadway realignment on Fortress Level Side road comprises realigning Fortress Level Side road with South Smith Side road, making a T-intersection with progressed sightlines.
The East Road railroad bridge undertaking comprises the alternative of the 100-year-old span. Horizontal clearance underneath the bridge widens to roughly 58 toes. whilst vertical clearance will increase from 12.2 toes. to fourteen.3 toes.
Picture courtesy of CTDOT
The Osborne Road railroad bridge undertaking features a new superstructure and rehabilitates the substructure whilst keeping up the present vertical and horizontal clearances.
Inbuilt 1890, the Strawberry Hill Road railroad bridge helps 4 tracks of the NHL. The Strawberry Hill Road bridge undertaking comprises the rehabilitation of the railroad bridge superstructure. The undertaking replaces the present bridge superstructure and updates the supporting construction beneath whilst keeping up the present vertical and horizontal clearances.
The superstructure alternative will probably be inbuilt halves all over the development of the WALK bridge, permitting paintings to be carried out all over deliberate two-track outages for the WALK bridge alternative and are coordinated with the opposite TIME-2 railroad development initiatives at East Road, Fortress Level Side road and Osborne Road.
The development apparatus used at the Stroll bridge Time 2 undertaking features a Liebherr LR1300 crane running on a southeast trestle, a Manitowoc MLC300 crawler crane running on southwest trestle set up and a Caterpillar 352 excavator with a teledipper attachment and a Caterpillar lengthy -each excavator running on secant excavation. CEG
