Through-Delta Conveyance

Staten Island Tip is the site of future speculative work by the Delta National Park design team.

The diagram shows the northern part of Alternative 3, which was once the preferred proposal of CALFED, a collaboration of 25 state and federal agencies with a mission to improve water supplies and the health of the Delta. Alternative 3 is also called the “through-Delta alternative,” and would make significant changes to the levee system along the Large Owner Axis.

Alternative 3 is a politically sophisticated version of the Peripheral Canal, a 1982 state proposition to divert Sacramento River water south, bypassing the Delta in the process. Alternative 3 reintroduces the idea of increasing diversions, but with greater attention to addressing environmental concerns. Recently, a new version of the Peripheral Canal has emerged as the favorite of many interests, and it remains to be seen whether the new version is politically viable.

Tags: control, water
Posted by dnpadmin on 05/23 at 12:48 AM • #

Images

Setback Levee

Setback Levee

CALFED “Through-Delta” Proposal

CALFED “Through-Delta” Proposal

One of CALFED’s scenarios calls for levee improvements through the center of the Delta linking the Delta Cross Channel to the Pumps. This territory coincides with the Large Owner Axis and the Delta Wetlands Project.

CALFED Staten Island setbacks proposal - ‘choke point 1’

CALFED Staten Island setbacks proposal - ‘choke point 1’

CALFED proposal to reengineer levees around the top of Staten Island, a notorious Delta ‘choke point.’

Levee comparison, typical vs setback

Levee comparison, typical vs setback

Typical levee on top, setback levee on bottom. Setback levees resolve conflicts between flood control, environmental, and water supply interests.

Infrastructure v. Public Works 6: The through-Delta component

Infrastructure v. Public Works 6: The through-Delta component

Setback levee diagram

Setback levee diagram

Diagram shows the basic features of a setback levee and compares it to a conventional levee.

Comments

There are no comments for this entry yet.

Add a comment

  1. Remember my personal information

  2. Notify me of follow-up comments?