Nanton Golf Club Gets a new Bridge!

Last week construction crews finished placing the new Nanton Golf Course bridge.  This bridge was a black steel truss bridge with a timber deck.  It was manufactured in the shop in Lethbridge and transported to the site in two pieces. The previous bridge was an old railway car that was dropped on makeshift abutments.  It […]

Tender Results for Bridge File 76077

Tenders for this project were opened at the Lethbridge County office at 11:00 am on March 31, 2017. BRIDGE REPLACEMENT AND OTHER WORK BRIDGE FILE 76077, NW 26-11-22-W4 LOCAL ROAD OVER LNID CANAL NORTH OF PICTURE BUTTE Thank you to everyone who submitted a bid.  The winner was Volker Stevin Highways Ltd. with a low […]

Standard Sizes of Precast Concrete Box Culverts

According to ASTM C1433 and C1433M, the standard dimensions of precast concrete box culverts are as listed in the table below. You can stand them up or lay them down flat, and you can put as many as you want side by side. Dimensions Thickness ft x ft mm x mm inches mm 3 x […]

How to Design a Concrete Box Culvert

Concrete box culvert

One of mine! Concrete box culverts are one of those items that very few engineers have to tackle regularly. I will assume you have already performed the hydrology and therefore know the design flow and channel tailwater, as this is not specific to concrete box design and not part of the scope of this article.  […]

Types of Culverts


When you’re in the planning stage of a culvert project, you need to investigate all of the options.  But between CSP, concrete, PVC, and all the different shapes available, how can you know what type of culvert you need or is the most cost effective? Deciding on a culvert type usually involves the following thought […]

Tender Results – BF 74005

BF 74005

This morning tenders were opened for Bridge File 74005, a bridge replacement / culvert installation project on the West Arrowwood Creek in the Vulcan County. The low bidder was Whissell Contracting Ltd. Thank you to all who submitted a bid. We wish you the best of luck in future tender opportunities. Bidder Tender Price Whissell […]

Tender Call – BF 74005

Today Vulcan County is advertising the tender for the replacement of bridge file 74005, a 6.1 m treated timber bridge over a tributary to West Arrowwood Creek.  Tender opening day is Monday, October 27, 2014. It involves removing a single span timber bridge and installing double 2400 mm diameter corrugated steel pipes.  Alberta Transportation standards […]

Tender Results – BF 9269

This morning tenders were opened for Alberta Transportation tender #15578, the replacement of Bridge File 9269 south of the town of Mountain View.  The low bidder was Shane Rodeback Excavating Ltd. of Raymond, AB.  Good luck with future tender opportunities!

Tender Call – BF 9269

Today Alberta Transportation is advertising tender #15578 for the replacement of bridge file 9269, a property access crossing an MVLA (Mountain View-Leavitt-Aetna) irrigation canal.  Tender opening day is Thursday, September 12, 2014. It involves removing a single span timber bridge and installing double 1800 mm diameter corrugated steel pipes.  Alberta Transportation standards for highway culverts […]

Maximum Concrete Travel Time

concrete travel time

Because of our work with Counties, we have many remote sites.  Such is the nature of the business, but since concrete begins to cure the moment it gets mixed we often run into problems with the prescribed time limits for concrete travel distance. What is the limit, and what are the options for dealing with […]