Reduced impact to population
Supported off-site construction
Custom lift requirements met
Due to it reaching the end of its natural lifespan, the Connecticut Department of Transport (DoT) needed to replace I-95 bridgework that had stood since 1958. At the same time, it needed to ensure this crucial civil work had the minimum possible impact on local residents.
Taking advantage of ALE’s expertise, two bridge superstructures, weighing 726t (800 US tons) and 817t (900 US tons), could be constructed at the roadside over a number of months, then transported the final few metres only at the time of installation. This allowed the job to be completed using just two weekend closures.
The bridges form the intersection of highway i-95 and highway 1 in Stamford, Connecticut, USA. ALE’s scope was to position both new bridge sections, following on from work by the client to demolish the old bridge sections in-situ.
The bridges were built at the installation height of 7,320mm (24 ft) by the client within the infield area of the northbound onramp. During early May, ALE mobilised both its SPMT equipment and specific falsework required for the job.
To ensure the bridge girders were evenly loaded during the move, ALE imported high-capacity modular beams from its Research and Development centre in Europe. These were installed on top of the SPMTs, forming much of the falsework required for the job.