Sediment removal coming 2013 for the major reservoirs

[AW~]

Here is the one for the Big Tujunga Dam
http://dpw.lacounty.gov/wrd/removal/big ... iption.pdf

An estimated cost of $34 million for this one dam, with trucks moving up and down the road for 4 years..."Trucking operations would run
8 hours per day, 5 days per week, 6 months per year along Big Tujunga Canyon Road and routes to Sun Valley Quarries."

Pacoima Dam is on the list at 5 years and Cogswell with time not listed.

[HikeUp]

The cost of not doing regular reservoir maintenance and burning down the forest.

[Gene]

Here is the one for the Big Tujunga Dam
http://dpw.lacounty.gov/wrd/removal/big ... iption.pdf

An estimated cost of $34 million for this one dam, with trucks moving up and down the road for 4 years..."Trucking operations would run
8 hours per day, 5 days per week, 6 months per year along Big Tujunga Canyon Road and routes to Sun Valley Quarries."

Pacoima Dam is on the list at 5 years and Cogswell with time not listed.

Cleaning out a reservoir is a big job and very necessary especially for those in the mountains, hills and floodplains around LA. If I was to bet, it would be on the truck method. A conveyor system, as used to clean out San Gabriel Dam before and after the 1968/69 fire and flood cycles. It took two contracts and required increasing the voltage on power lines up San Gabriel Canyon. They still had problems keeping things moving and getting enough power may be a problem today.

It's too bad they are not able to use the sluice gates to wash out the dams and send the slit downstream like nature intended. The native plants and animals evolved around that cycle, much like the plants that rely on fires to reproduce. Unfortunately for nature, but to the benefit of residents, LA has an extensive flood control system all that silt would compromise.

You mentioned Cogswell Dam, it would be fantastic to completely drain that reservoir and kill off the $%&*@#$ catfish introduced to a formally trout only lake.