Peripheral Canal

A peripheral canal, formally called the Eastern Alignment Isolated Facility, is the latest preferred alternative of policy makers in California’s ongoing, contentious debate over Delta water export.

Two components comprise the facility—The Eastern Alignment Isolated Conveyance Component, and through-Delta improvements. The EAIC has: 1/ a 41-mile canal skirting the eastern edge of the Delta; 2/ an intake facility near Hood that would divert up to 15,000 cfs of the Sacramento River water before it entered the Delta; 3/ 8 siphons over rivers and sloughs; 4/ 3 culverts under sloughs; 5/ 18 bridges over state highways and roads; 6/ 2 rail bridges

The through-Delta improvements include: 1/ 75 miles of retrofitted setback levees; 2/ 60 miles dredged rivers and sloughs; 3/ barriers at Old River, Connection Slough and Woodward Canal; 4/ a siphon at Old River to direct water to Clifton Court Forebay.

Posted by John Bass on 07/18 at 04:47 PM • #

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Isolated facility - eastern alignment alternative

Isolated facility - eastern alignment alternative

The Eastern Alignment Isolated Facility is the latest preferred alternative of the planners of the ongoing crisis in California’s contentious debate over Delta water export.

Two components comprise the facility—The Eastern Alignment Isolated Conveyance Component, and Through-Delta improvements. The proposed EAIC would have 1/ a 41-mile canal skirting the eastern edge of the Delta; 2/ an intake facility near hood that would divert up to 15,000 cfs out of the Sacramento River before entering the Delta; 3/ 8 siphons over rivers and sloughs; 4/ 3 culverts under sloughs; 5/ 18 bridges over state highways and roads; 6/ 2 rail bridges

The through-Delta improvements would include: 1/ 75 miles of retrofitted setback levees; 2/ 60 miles dredged rivers and sloughs; 3/ barriers at Old River, Connection Slough and Woodward Canal; 4/ a siphon at old river to direct water to clifton court forebay.

Siphon spring diagram

Siphon spring diagram

Conceptual diagram of a peripheral canal siphon spring facility. Siphon springs would occur at the intersections of the proposed canal and existing Delta waterways. Siphon springs would be in part infrastructure, and part an occasion to create a new Delta recreational space.

The diagram shows a siphon passing under an existing Delta waterway, and two head-driven artificial artesian “springs” that would inject Sacramento River water into intersecting waterways.

Infrastructure v. Public Works 5: Siphon springs

Infrastructure v. Public Works 5: Siphon springs

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