Before: ​Headgate

Before: SLV Canal Headgate

Rio Grande #2

San Luis Valley Canal

Centennial Ditch

Goal: Replace the diversion and headgate with a rock cross vane diversion that is passable by fish and boats, as well as stabilization of surrounding streambanks and riparian habitat restoration.
Status: Completed Spring 2018
Partners: Rio Grande #2 Shareholders, Riverbend Engineering, Cooley & Sons Excavating, RGHRP

After: Diversion Dam

Goal: Replace the diversion with a grouted rock structure, stabilize the surrounding streambanks, and restore the riparian habitat.
Status: Completed Spring 2018.
Partners: Centennial Ditch Board, Colorado Parks and Wildlife, Riverbend Engineering, Robins Construction, RGHRP.

5 Ditches Project

Construction: Pouring Concrete

Map and Irrigation Statistics

Before: ​Diversion Dam

Before: Consolidated Diversion Dam

Construction: ​Rock Structure

After: Diversion Dam 

After: Headgates and Trash rack

Five Ditches Project

Goal: Replace the headgate with automated water control gates, stabilize surrounding streambanks, and restore riparian habitat.
Status: Completed Spring 2019.
Partners: San Luis Valley Canal Company, Colorado Parks and Wildlife, Riverbend Engineering, Cooley & Sons, RGHRP.


The Consolidated Ditch, Pace Ditch, San Luis Valley Canal, Centennial Ditch, and Rio Grande #2 Ditch divert water off the Rio Grande to irrigate a combined 35,906 acres of agricultural land. Each ditch faced issues of aging and inefficient diversion infrastructure, and the river was impacted by nearby channel instability and sedimentation. Additionally, increased water shortages and prolonged drought make accurate water management even more important. Improving the diversion structures and streambanks has improved diversion efficiency and reduced maintenance, enhanced the water quality by reducing erosion, improved wildlife habitat, and enhanced recreation and safety by ensuring the diversions are passable by fish and boats where appropriate.

Before: Diversion Dam

After: Consolidated Diversion Dam  

Consolidated and Pace Ditches

Before: ​Pace Headgate

Project Overview

After: SLV Canal Headgate

Before: ​Consolidated Headgate

After: Dam underwater

Goal: Replace the diversion and headgates with automated water control gates and concrete diversion structure that includes fish passage.  The project will also include stabilization of surrounding streambanks and riparian habitat restoration.
Status: Completed in Spring 2019.
Partners: Consolidated Ditch Company, Natural Resources Conservation Service, Pace Ditch, Robins Construction, RGHRP