This project was undertaken to install part of the Trans Canada Pipeline underneath Fox Creek, in Alberta Canada.

The first 12ft tall 25ft wide (full) 100ft long single closed end (SCE) AquaDam has been launched and secured to the starting bank, at the upstream side of the work area. The bypass pumps can be seen on the left-hand side of this photo.

Twelve 10-inch submersible pumps were placed into the creek just upstream of the 12ft tall AquaDam, for bypassing the flow of Fox Creek during the project.

Each of the pumps must have their discharge hoses laid out flat without any kinks. These types of hoses typically come in 50ft lengths and will require connectors.

This project used over 3,000ft of 10-inch discharge hose and 60 connections to reach the downstream discharge point.

A piece of equipment that was used to help layout the discharge hoses for the bypass.

The discharge point for the pump bypass can be seen here. Workers must prepare the area for the water that will be exiting the discharge hoses.

After all the discharge hoses were placed flat at the bank of the creek, weighted mats were placed on top of them to help reduce erosion.

The erosion reducing mechanism developed for the twelve discharge hoses was customized and quite unique.

Ropes were secured to some of the discharge hoses to prevent them from moving around.

The twelve submersible pumps were all electric and required generators, fuel, and of course wiring.

Five out of the twelve submersible pumps are running, notice seven of discharge hoses are flat.

With nearly half of the pumps running there is a lot of water being pumped at the downstream end.

Large mats were also placed at the opposite bank of the creek to prevent any erosion that the discharge hoses may cause.

The exiting flow created from the discharge hoses. After verifying the bypass flow was as designed, the AquaDam cofferdam system could be installed.

Ropes have been tied to the starting point (open end) of the AquaDam and to anchors on shore to keep the dam in place as it fills with water.

Four ropes have been placed underneath and back over the top of the 12ft tall AquaDam to assist the unit unroll across the creek. One end of each rope is tied to an anchor and the other is held by workers. The workers release a few feet of the dam across the creek after the unit has gained enough head above the surrounding water. The ropes apply pressure against the roll end of the AquaDam, as its unrolled portion fills and gains head. This technique is typical for flowing water.

Here are the installed upstream dams, the 12ft tall by 100ft long SCE main AquaDam and an 8ft tall by 54ft long SCE support AquaDam.

The conditions called for another 12ft tall AquaDam on the downstream side, but in this case, there were stumps in the creek where the AquaDam was to lay and so an 8ft tall SCE AquaDam was used instead.

The AquaDam cofferdam system has been installed, the pumping bypass is working, and the work area is being de-watered.

A worker, impressed by the water-filled cofferdams, inspects the de-watered work area.

The downstream AquaDam installed and working.

The flow of Fox Creek has been diverted.

The de-watered work area, great job AquaDam!