The New Brunswick Department of Transportation and Infrastructure
Kedgwick, New Brunswick
The Kedgwick River Bridge was destroyed by ice in 2012, subsequently; HILCON was engaged by New Brunswick Department of Transportation to design a replacement structure. HILCON’s team performed a full site survey, including river bottom and approaches. They also calculated peak flow estimates, built a hydraulic model and did an ice study of the site prior to structural design.
Due to a compressed construction schedule and in-stream work restrictions, an innovative 80m long pre-fabricated structure was launched across the Kedgwick River on abutments designed by HILCON. At the time, this bridge was the largest single span structure in Canada of its kind.
City of Fredericton
Marysville, New Brunswick
The City of Fredericton required a replacement structure for a failing steel culvert, located under the Nashwaak Trail. The high embankment provided a challenge, as it also contained a water line and sanitary forcemain that had to remain in service during construction.
HILCON completed the engineering survey, hydraulic design, including energy dissipators and full tender package for the City of Fredericton. HILCON also provided full time inspection during construction.
The New Brunswick Department of Transportation and Infrastructure
Gagetown, New Brunswick
HILCON assisted the New Brunswick Department of Transportation and Infrastructure with the Full Mill Brook culvert replacement. This project involved replacing two failing culverts, located under Route 102, and an adjacent abandoned rail line, with one single concrete pipe.
The project included engineering survey, hydraulic design, design of a fish passage, realignment of the abandoned rail line (and conversion to a pedestrian trail) as well as design of a construction detour to keep the site open during construction.
The New Brunswick Department of Transportation and Infrastructure
Fredericton, New Brunswick
HILCON developed a storm water management model of the back drain in Fredericton, which also required a field survey and investigation to be performed. The back drain has a length of approximately 2.3km and increases in pipe diameter, from 750mm to 1500mm along its length as it intercepts several secondary storm water lines. The model identifies several hydraulic deficiencies and is an important tool for analyzing the impact of land use on storm water run-off.