Sutton Road Bridge Replacement

Newbury, New Hampshire

DuBois & King was retained by the Town of Newbury to conduct an engineering study and final design for two bridges: Village Road over Andrew Brook and Sutton Road over Ring Brook. D&K suggested that a single study be developed to include both bridges, in order to save time, effort, and expense.

Services included development of an engineering study to identify replacement structure options, recommendation of a preferred alternative, and identification of whether the new bridges should be constructed on different alignments to improve geometrics and facilitate the maintenance of traffic throughout construction. Services also included field survey; geotechnical borings; cultural and natural resource investigations; permitting; and the development of preliminary and final design drawings, cost estimates, and bid documents.

A precast/prestressed butted box beam superstructure on cast-in-place abutments and wing walls was recommended as the most cost effective replacement for the Sutton Road Bridge. Due to site constraints, a temporary one-lane bridge and bypass road was erected downstream to maintain traffic through the site during construction.

DuBois & King provided bid and construction phase administration and resident engineering services during construction.