Construction on the Lower Arroyo Seco
July 17, 2010 § 12 Comments
Here are some photos of some construction (so far destruction?) underway on the lower Arroyo Seco. I first heard about this activity from Highland Park 90042, which asked the question What Are They Doing Down There? I have more-or-less the same question after seeing it myself.
I did a little digging in the county records and found what appears to be the project description – though the information on-line isn’t that descriptive. The Los Angeles County Public Works website includes this listing for a project described as “REPLACEMENT OF ERODED AND DAMAGED REINFORCED CONCRETE LOW-FLOW INVERT AND LEVEE PANELS WITHIN THE ARROYO SECO CHANNEL.” Here’s the basic info on the project (located here – not directly linkable – search for Arroyo Seco), bid in February 2010:
Arroyo Seco Channel, storm channel repair., Project ID No. FCC0000996, the removal and replacement of reinforced concrete low-flow invert slabs and levee panels within an existing storm channel and the performance of other appurtenant work, Estimated Price $1,200,000 – 1,600,000
According to the county site, the job was awarded to the West Valley Investment Group for $862,616.
Down in the Arroyo Seco now, there are a couple of big construction vehicles breaking up the concete in the center of the concrete channel.
I found it interesting that, in the rubble, there’s quite a bit of fairly large 2-3′ pieces of river rock… likely incorportated from the bed of the Arroyo into the concrete poured (which I believe was a WPA jobs program in the 1930’s – one of the earliests of L.A.’s concrete waterways.)
The water has been shunted around the main low-flow area. It’s flowing in a small plastic-lined side channel along the west edge of the bottom of the site.
I wish that I could speculate that this is a multi-benefit greening project being shepherded by County Supervisor Gloria Molina (whose district it’s located in)… or even reconfiguring the concrete channel bottom for enhanced fish migration on this historic Steelhead Trout stream… but I expect that it’s just spending nearly a million dollars to re-do the slightly-worn concrete at the center of channel. And I don’t recall there being any serious problems with that concrete being damaged. A missed opportunity.