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ECCO III is an expert in bridge-related construction, having completed over 55 bridge and highway projects of varying size and complexity for various Owners including the New York State Department of Transportation, the New York State Thruway Authority, and Metropolitan Transportation Authority. ECCO III has been certified by the American Institute of Steel Construction (AISC) since 2015 and has the capacity to self-perform the demolition of existing structures and the installation of new bridge elements. In facilitating these major operations, ECCO III has a strong record of providing value-engineered solutions that afford overall Project cost and schedule reductions.
ECCO III routinely examines designs for constructability, and suggests alternate systems, materials, and methods that effectively reduce project timelines and budgets without compromising quality. We continuously seek all strategic opportunities to deliver projects with minimal impact to the traveling public, residential neighborhoods, business communities, and the environment.
In March 2024, our Team successfully de-launched the Fulton Avenue Bridge in Mount Vernon, New York as part of MTA C&D Contract No. 168632: Design-Build Services for the Replacement of Fulton Avenue and South Street Bridges.
The existing Fulton Avenue Bridge was a 130-year old, single span Pratt through-truss structure. Our Team utilized a complex and innovative technique to lift and de-launch the entire bridge which significantly minimized disruption to Metro-North Railroad’s services and railroad protection.
HOW IT WORKED:
This approach eliminated the need for large cranes and heavy machinery typically required for bridge demolition, significantly minimizing risk and railroad disruptions.
Thanks to our Subcontractor, Mammoet, for their expertise and dedication in making this critical activity a success.
This Project for the rehabilitation of Harlem Line Bridges HA 61.06 and HA 61.36 in Patterson, New York required the replacement of two (2) existing railroad bridges crossing the Croton River. The replacement of these bridges showcased ECCO III’s commitment to minimizing disruption to critical infrastructure while expeditiously completing the work required under the Contract.
Traditionally, bridge construction over railways necessitates lengthy track closures. We employed a complex and innovative bridge slide technique to overcome the challenge of replacing these bridges with minimal disruptions to the traveling public.
To facilitate the work, ECCO III constructed temporary access bridges alongside the existing structures immediately adjacent to the active railroad track. The new bridges were built entirely offline, on top of the temporary access structures. Over two (2) preparatory weekend outages, precast bridge seats and backwall elements were placed to support the new superstructures. Over the course of individual extended weekend outages, complete demolition of the existing bridge was performed, and the proposed structures were slid into place utilizing self-propelled gantry cranes on specialized slide tracks. Metro-North Railroad’s track was restored to service 10-hours earlier than required by project needs. The overall Project was completed eight (8) months earlier than anticipated.
Thanks to our Subcontractor, Barnhart, for their expertise and dedication in making this Project a success.