Smith Estates Canal Lining Project

Grand Valley Irrigation Company has completed the lining of the previously earthen canal located along the rear boundary of the Smith Estates subdivision located near J Road and 23 Road.

The project included installation of geotextile fabric, PVC liner, and drain lines that daylight into Grand Valley Drainage Ditch, as well as the installation of H-walls on headgates 255 and 256. Shotcrete was applied to finalize the lined section, and the Smith Estates access road was finished with gravel.

A view of headgates HL256 & HL255 shown inserted within new concrete H-walls.
Multiple perspectives of the lined canal taken from a drone.

The lining extends approximately 1,650 feet, adjacent to the Smith Estates subdivision. This section historically presented high-bank conditions on the west side of the canal. The lining was completed to reduce the risk of bank failure, mitigate seepage, and improve overall canal integrity in the section.

An aerial view of the Smith Estates canal section, with the extent of the project shown in orange.
A vanity shot taken of the project from a drone looking upstream.

 

Bookcliff Canal Lining Project

For approximately 15 years, GVIC has received Federal grants to assist in lining portions of the canal system through the Colorado River Basin Salinity Control Program to reduce salt loading in the Colorado River.

An aerial view of the Bookcliff section (bottom). A view of the Bookcliff section from G 1/2 Road (top).

In the Fall of 2023, GVIC continued this work by lining a section of the Highline canal near the Bookcliff Gardens Nursery. This section lies south of the interstate between Leach Creek and G 1/2 Road and is 1,424 feet in length. The lining process consists of a 30 mil PVC membrane with a 3 1/2″ shotcrete layer to protect and hold the liner in place.

Canal lining for this section has been completed.

The project provides a number of benefits to the shareholders, virtually eliminating the seepage of water out of the canal and preventing ground salts from entering the canal.

Mainline 260 Lateral Piping Project

Grand Valley Irrigation Company has completed piping the concrete, trapezoidal ditch near 1st Street and Patterson Road. The project area extends from the northeast corner of Westlake Park to the south end of Knollwood Drive. It is piped with 24-inch PVC pipe for most of its length.

An aerial view of the ML 260 lateral, with the current ditch in purple (bottom). A view of the ML 260 lateral from Lorey Drive (top).

This improvement will be of significant benefit to the shareholders, as it will provide water with less debris and will inhibit the deposition of silt.