Date: Tue, Jan 9, 2018 at 9:29 AM
Subject: Nimbus Dam – Change Order
Please make the following release change to the American River.
Date Time From (cfs) To (cfs)
01/09/2018 1200 2,000 2,500
01/09/2018 1300 2,500 3,000
Comment: Storage management.
Issued by: P, Manza
The Water Forum received an Environmentalist of the Year Award from the Environmental Council of Sacramento (ECOS), in recognition of their years of salmonid habitat restoration work on the lower American River.
Accepting the ECOS award: Mike Gonsalves, City of Sacramento Department of Utilities; John Hannon, U.S. Bureau of Reclamation; Mike Healey, California Department of Fish and Wildlife; Beth Campbell, U.S. Fish and Wildlife Service; Adam Strebel, City of Sacramento Department of Utilities; Lilly Allen, Water Forum; Gary Grey, City of Sacramento Department of Utilities
Yearly gravel restoration projects carried out by the Water Forum create essential spawning and rearing habitat for endangered Chinook salmon and Steelhead trout. Central Valley dams have critically reduced much of their habitat and prevented their spawning gravel from moving downstream. These fish need fist size gravel to create their nests, called redds, to spawn. When flows in the river rise, so does the energy of the river which washes these rocks further downstream. Without these restoration projects, new fist-sized rocks would not be replenished near the top of the dam, where the best habitat is located. It is important that the Water Forum and our partners continue replacing these rocks so the fish can thrive.
This Award celebrates Sacramento region’s outstanding environmental successes and recognizes the individuals and organizations who spearheaded them. Since its formation in 1971, ECOS has convened Sacramento’s environmental leaders to create a visionary forum and an action-oriented coalition for the region. This year marked the 45th Environmentalist of the Year awards ceremony hosted by ECOS. ECOS is also a signatory on the landmark Water Forum Agreement, which was signed in 2000.
Over the past 9 years, the Water Forum has designed and built over 30 acres of salmonid habitat along the lower American River. They have accomplished this through a collaborative process engaging stakeholders and scientists and partnering with the U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service, California Department of Fish and Wildlife, the National Marine Fisheries Service and Sacramento County Parks.
The Water Forum is anticipating construction throughout the river. The NEPA document is located here.
Date: Wed, Nov 29, 2017 at 9:23 AM
Subject: Nimbus Dam – Change Order
Project: Nimbus Dam
Please make the following release change to the American River.
Date Time From (cfs) To (cfs)
12/01/2017 0700 2,000 2,500
12/01/2017 0800 2,500 3,000
12/01/2017 0900 3,000 3,500
Comment: Storage Management
Issued by: J. Sandberg
December and January flows for the 50% exceedance should be 2,500 cfs.
Date: Tue, Oct 3, 2017 at 9:32 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes at Nimbus Dam:
Date Time From (cfs) To (cfs)
10/05/2017 2100 3,000 2,900
10/06/2017 2100 2,900 2,800
10/07/2017 2100 2,800 2,700
10/08/2017 2100 2,700 2,600
10/09/2017 2100 2,600 2,500
10/10/2017 2100 2,500 2,400
10/11/2017 2100 2,400 2,300
10/12/2017 2100 2,300 2,200
10/13/2017 2100 2,200 2,100
10/14/2017 2100 2,100 2,000
Comment: Reducing flows for fall spawning
Issued by: P. Manza
Date: Thu, Sep 28, 2017 at 9:04 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes at Nimbus Dam:
Date Time From (cfs) To (cfs)
10/01/2017 2100 3,500 3,350
10/02/2017 2100 3,350 3,200
10/03/2017 2100 3,200 3,100
10/04/2017 2100 3,100 3,000
Comment: Reducing flows for fall spawning
Issued by: P. Manza
Date: Mon, Sep 18, 2017 at 10:47 AM
Subject: Nimbus Dam – Change Order
Comment: Fish Picket installation on fish weir
Please make the following release changes at Nimbus Dam:
Date Time From (cfs) To (cfs)
09/20/2017 2200 3,500 3,200
09/20/2017 2300 3,200 2,900
09/21/2017 0001 2,900 2,675
09/21/2017 0100 2,675 2,425
09/21/2017 0200 2,425 2,175
09/21/2017 0300 2,175 1,925
09/21/2017 0400 1,925 1,675
09/21/2017 0500 1,675 1,425
09/21/2017 0600 1,425 1,200
09/21/2017 0700 1,200 1,000
09/21/2017 1500 1,000 1,500
09/21/2017 1600 1,500 2,500
09/21/2017 1700 2,500 3,500
Please begin release ramp up as soon as picket work is completed. If that occurs earlier than shown on this order, then begin ramping back up at the same rates, just begin ramp up sooner and follow same pattern.
Issued by: P. Manza
