Engineering expertise critical for system reliability
The 336-mile CAP system is an engineering marvel, that includes pumping plants, siphons, check structures, Lake Pleasant, and more! Its features are as diverse as
Infographics
How does the water cross the road? Through an inverted siphon
English En Español English When a 336-mile canal system needs to traverse the State of Arizona, how do you get the water it carries across
Going with the flow
Not only is CAP’s infrastructure amazing, it’s also unique. Some of the unique features you may not have heard about – or seen — are
Water Wisdom: A football field of water
One acre-foot of water is 325,851 gallons to be exact, which is enough water annually for three average families. The CAP system is an engineering marvel that
The creation and evolution of the “bubble log”
It’s been said that necessity is the mother of invention and that is definitely true in the case of access stoplogs, nicknamed “bubble logs.” When
As summertime CAP water deliveries rise, power usage plummets
This post was updated August, 2025 Most people living in Arizona develop a special appreciation for two precious resources needed to survive this climate —
Reclamation declares Tier 1 shortage for 2026
The Bureau of Reclamation has issued its August 24-Month Study, which determined that the Lower Colorado River Basin will continue to be in a Tier 1
A tale of tunnels
English En Español English At the beginning of the CAP system, Mark Wilmer Pumping Plant lifts water more than 800 vertical feet up Buckskin Mountain.
Amazing – and impressive — infrastructure
It’s frequently said that Central Arizona Project’s infrastructure is amazing – because it is! Here is yet another example of why that is true. At