Box Culvert Manufacturing & Installation

Speaker:  Trevis Hanson, C.E.T. – Canadian Concrete Pipe and Precast Association

Presentation Description

Discover how precast concrete box culverts are made using drycast and wetcast concrete. Learn about the different precast concrete box structures and how they are installed properly for long life and proper performance. See examples of unique installations including clam-shell boxes, three sided boxes, and accelerated bridge construction.

This presentation details how drycast and wetcast concrete is produced and how both concrete types are used for precast concrete box culverts. Attendees will learn about the structural design of precast concrete box culverts as well as the different exposure classes of concrete. Precast concrete box culvert joints are described and examples of the different types are shown. Installation in different circumstances is shown, complete with connection plates and even post tensioning. Different precast concrete box sections for unique circumstances are detailed and described. 2 videos showing unique installations are shown at the end of the presentation. This first video is a 3-sided concrete box installation on precast concrete footings. The second video is a time lapse of accelerated bridge construction where the contractor had 20 hours and 5 minutes between scheduled trains with no option for delay.

Speaker Bio

Trevis Hanson is a Certified Engineering Technologist C.E.T.) registered in the Province of Alberta in Canada.

He graduated from the Lethbridge Community College in Southern Alberta in the late 1990’s with 2 technology diplomas. In 1998 he began working with a Consulting Engineer as a Bridge Technologist. His duties included the hydraulic design of bridges and culverts, structural inspections of bridges and culverts, and construction inspection of roads and bridges.

In 2005, he was hired by a Contractor in Alberta as a Project Manager and Estimator for their bridge construction group. In 2009, he moved across Canada, to Ontario, to work as a Project Manager for a sewer and watermain Contractor. As a Contractor, Trevis was responsible for the delivery of projects from tender to the end of the warranty period.

In the summer of 2012, he moved back to Alberta to work in precast concrete sound wall and retaining wall sales. In summer 2014, he was hired by the City of Calgary as the Bridge Operations Technologist. The City of Calgary has over 500 bridges, tunnels, and structural stairways. These structures required inspection ever 12 to 24 months and was the primary duty in this role.

Trevis became the Technical Resources Manager of Alberta and British Columbia with the Canadian Concrete Pipe and Precast Association in May 2021.

Trevis has been playing the bagpipes for 38 years and is currently a Leadership Corporal in the Calgary Police Service Pipe Band.