Upcoming Sediment Removal Meeting: Big Tujunga Dam

June 18, 2012 § 2 Comments

OK, thanks to Rick Grubb, I’m getting this with time for you to put it on your calendars!!

The County of LA is having a joint meeting with the USFS on sediment removal of Big Tujunga Dam.  Dirt’s all the rage here at LA Creek Freak, as you know.  Rick’s also communicated that he wants to see Arroyo Toad back in his region, one of many species that have been impacted by our flood control system.

Here’s the details:

Tuesday, July 24, 2012  6 to 8 p.m.
 
City of Los Angeles – City Council District 2
Sunland-Tujunga Field Office
7747 Foothill Blvd.
Tujunga, CA 91042 (map)
The United States Forest Service (USFS) and the County of Los Angeles Department of Public Works (DPW) will jointly present the Big Tujunga Reservoir Sediment Removal Project.  Information will be provided about the project, the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA).  The public will have the opportunity to ask questions of the USFS and DPW and comment on the project.  Please plan to join us for this meeting.
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§ 2 Responses to Upcoming Sediment Removal Meeting: Big Tujunga Dam

  • Greetings,
    While preventing catastrophic storm water flows, Los Angeles Dams also unfortunately accumulate sand and sediment behind them that, absent the Dam, would naturally pass downstream. The sediment must be removed from behind the Dams to maintain their capacity to hold water. The disposition of the sand and sediment is of some contention, as the expense of trucking and land-filling the sediment is expensive, recurring, and deprives aquatic animals (and the beach cities) downstream of replenishing sand. Since abandoning “in stream transport” of the sediment LACFCD dam opreations removes from the Big Tujunga Dam above Sunland about 1996, the Arroyo Toads in our community have been inexhorably extirpated from our portion of the Big Tujunga River Wash as they need sandy rills and sand bars, in stream, for reproduction and fletching. The LACFCD has transformed our river into “angry water”, channelizing the flow into 2 arbitrary ditches with no instream structures remaining for Arroyo Toads.

  • Ricky Grubb says:

    An IS/MND is opened for this sediment removal project, and still no discussion of the sandy rills and in-stream structures the Arroyo Toads need in order to re-occupy critical habitat (but revoked because; “It is unlikely to receive any replenishing sand” etc. Please release 5% of the high quality sand, and 10% of the high quality gravel in-stream while dewatering the dam, pass downstream to rebuild the sand bars and sandy rills, Arroyo Toads need some sediment from the dam, release a little sand and gravel or the MND is inappropriate as serious impacts to Sunland’s Arroyo Toads (they were first discovered here in the Big Tujunga River Wash, Sunland Ca. hundreds were collected by scientists to describe the species), our critical habitat revoked ’cause it’s unlikely to receive replenishing sand and gravel, Arroyo Toads now nearly extirpated from Sunland, that’s a serious, unmitigated effect on a listed species!
    LACFCD has a sediment management web page, Big Tujunga Dam sediment removal project has a page, IS/MND is available for review and open for comments until June 26th so keep those cards and letters coming, sluice 5% of high quality sand, and 5% of high Q gravel downstream for Arroyo Toads to return to Sunland or do a full EIR, cause a MND is inadequate!

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