Borrow Pit Exchange Authority

The Borrow Pit Exchange Authority would coordinate development along the Interstate 5 corridor. The location of the pits may implicate them in Peripheral Canal planning.

The BPEA gets its name from a series of ‘borrow pits’ dug in the 1960s to provide fill for construction of the I-5. These pits run parallel to the highway, and over the last 40 years, have developed sufficient riparian qualities that some have been designated wildlife sanctuaries. The BPEA would use this principle of excavation and riparian habitat creation to manage the ecology of development along the I-5 corridor.

Management would occur at two scales: First, the BPEA territory would develop a system of canals, increasing the quantity of waterfront properties; second, it would export its fill material to other Delta regions, including to the South Delta Exchange Authority, where serious concerns over flooding and water quality will inevitably lead to the construction of a more robust levee system and greater channel carrying capacity.

Posted by John Bass on 04/30 at 08:10 PM • #

Images

Borrow Pit Edge - Ground Leveling Precision

Borrow Pit Edge - Ground Leveling Precision

Edge of fields in the Borrow Pit Exchange Authority. Right to left is field edge, toe ditch, (riparian) levee bank and levee crest, the constituent elements of the Delta’s levee infrastructure.

Borrow Pit Exchange Authority

Borrow Pit Exchange Authority

Diagram of the Borrow Pit Exchange Authority along I-5. Borrow pits were dug to provide fill for the I-5 roadbed. The pits filled with water and developed riparian habitat. Some are now wildlife preserves. The pits may come back into focus as their locations approximate the proposed Peripheral Canal location.

Borrow Pit Exchange Authority Diagram

Borrow Pit Exchange Authority Diagram

Borrow pit, eastern edge of Delta

Borrow pit, eastern edge of Delta

This is one of several “borrow pits” that were created during the construction of Interstate 5. Many have developed substantial riparian habitats.

(Un)Follow the money

(Un)Follow the money

Comments

What I want to know is, why doesn’t the map show the BPEA?

By David Zeibin on 2009 06 18

What do you mean “it doesn’t show” it?

By John Bass on 2009 07 15

Hi John!

That was just a test comment when I was trying to troubleshoot the map overlays. It seems to be working OK now.

You can probably just delete these three comments.

By David Zeibin on 2009 07 15

I clearly need to fix the commenting as well. Will do…

By David Zeibin on 2009 07 15

what would be involved in learning how to draw onto the map?

By jb on 2009 08 08

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