Diversion of surface water for agriculture through low impact, habitat friendly methods; an integral part of an irrigation system designed to conserve soil and water resources.
How it works
With a diversion, landowners with water rights transfer surface water to irrigation systems using environmentally sensitive and sustainable methods. The practice generally consists of an in-stream structure of rock, gravel or large wood that diverts water while meeting fish passage considerations. This practice is used to mitigate push-up dams or other structures that span the channel and restrict fish passage.
How it helps
Conveys water for on-farm use
Accommodates fish passage and allows migration
Reduces annual operation and maintenance
Provides unrestricted movement for aquatic species, sediment and wood throughout the stream
Have you worked with the local watermaster to identify your water right?
Will a stream crossing be needed for livestock?
What fish species do you have in your stream?
Will a fish screen be required?
The size of the irrigation diversion will depend on stream hydrology and the landowner’s water right.
Hydraulic analysis will likely be required.
Ask your conservation planner for design and construction specifications.
The landowner must obtain any necessary easements or permits.
Are Endangered Species Act (ESA) considerations or special permits required?
Keep headgates clear of sediment and debris.
Maintain good vegetative cover on all slopes and water courses.
Control livestock access to adjacent streambanks and keep fences repaired.
Maintain erosion control measures around the structure, headgate and ditch.