New Haven, CT
This project, installing 650 linear feet of steam lines and 2,500 linear feet of chilled water lines under York and Chapel streets, was a critical step in Yale University's long range plan to increase the capacity and reliability of its heating and air conditioning plant.
Before work began, BAC investigated the existing utilities in the street, to facilitate the design of the custom-manufactured pipe.
Vibration damage to nearby buildings and museums was successfully prevented through continuous monitoring and structural reinforcements. Pipe sleeves were jacked 300 feet to avoid existing utilities at a particularly busy intersection where maintaining an open trench was impractical.
While technically an 8 month project, most of the work could begin only after graduation in May and had to be completed prior to classes resuming in August. Although night work was generally not permitted, with efficient coordination and extra crews the project was completed before the deadline.