Project: Folsom Dam Temperature Shutters
On Thursday, 04/13/2017, lower the bottom and middle shutters on units 1 and 2.
Folsom shutter status after changes:
Top Shutters: Units 1, 2, & 3 – raised
Middle Shutters: Units 1, 2 lowered unit 3 – raised
Bottom Shutters: Units 1, 2 lowered unit 3 – raised
Comment: Temperature shutter elevation requirement
Issued by: Peggy Manza
Date: Wed, Apr 5, 2017 at 11:36 AM
Subject: Nimbus Dam – Change Order
Please CANCEL the following release changes:
Date Time From (cfs) To (cfs)
04/05/2017 2000 8,500 8,300
04/06/2017 2000 8,300 8,000
04/06/2017 2100 8,000 7,650
04/06/2017 2200 7,650 7,300
04/07/2017 2000 7,300 7,000
04/07/2017 2100 7,000 6,700
04/07/2017 2200 6,700 6,500
Releases will remain at 8500 cfs until further notice.
Comment: Upcoming rain event
Issued by: P. Manza
Date: Wed, Mar 29, 2017 at 10:12 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
03/29/2017 2000 15,000 14,000
03/29/2017 2100 14,000 13,000
03/30/2017 2000 13,000 12,300
03/30/2017 2100 12,300 11,600
03/30/2017 2200 11,600 11,000
03/31/2017 2000 11,000 10,500
03/31/2017 2100 10,500 10,000
03/31/2017 2200 10,000 9,500
04/01/2017 2000 9,500 9,100
04/01/2017 2100 9,100 8,700
04/01/2017 2200 8,700 8,500
Comment: Storage management
Issued by: P. Manza
Date: Fri, Mar 24, 2017 at 10:26 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
03/27/2017 0800 5,000 7,500
03/27/2017 1000 7,500 10,000
03/28/2017 0800 10,000 12,500
03/28/2017 1000 12,500 15,000
Comment: Inflow management
Issued by: P. Manza
Reclamation outlined flows and storage for March – August at the monthly American River Group yesterday. The full handouts are below, we expect a temperature plan next month.
Date: Mon, Mar 6, 2017 at 10:58 AM
Subject: Nimbus Dam – Change Order – CORRECTION
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
03/09/2017 0100 6,400 6,150
03/09/2017 0300 6,150 5,900
03/09/2017 0500 5,900 5,650
03/10/2017 0100 5,650 5,400
03/10/2017 0300 5,400 5,150
03/10/2017 0500 5,150 5,000
Comment: Inflow management, CHANGED RELEASE TIMES TO NIGHTTIME TO REDUCE STRANDING OPPORTUNITIES
Issued by: P. Manza
Date: Fri, Mar 3, 2017 at 9:43 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
03/07/2017 0800 8,000 7,650
03/07/2017 1000 7,650 7,300
03/08/2017 0800 7,300 7,000
03/08/2017 1000 7,000 6,700
03/08/2017 1200 6,700 6,400
03/09/2017 0800 6,400 6,150
03/09/2017 1000 6,150 5,900
03/09/2017 1200 5,900 5,650
03/10/2017 0800 5,650 5,400
03/10/2017 1000 5,400 5,150
03/10/2017 1200 5,150 5,000
Comment: Inflow management
Issued by: P. Manza
Date: Tue, Feb 28, 2017 at 4:53 PM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
03/01/2017 0800 20,000 18,650
03/01/2017 1000 18,650 17,300
03/01/2017 1200 17,300 16,000
03/02/2017 0800 16,000 15,000
03/02/2017 1000 15,000 14,000
03/02/2017 1200 14,000 13,000
03/03/2017 0800 13,000 12,300
03/03/2017 1000 12,300 11,600
03/03/2017 1200 11,600 11,000
03/04/2017 0800 11,000 10,500
03/04/2017 1000 10,500 10,000
03/04/2017 1200 10,000 9,500
03/05/2017 0800 9,500 9,100
03/05/2017 1000 9,100 8,700
03/05/2017 1200 8,700 8,300
03/06/2017 0800 8,300 8,000
Comment: Storage management
Issued by: P. Manza
Date: Mon, Feb 27, 2017 at 4:36 PM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
02/28/2017 0800 30,000 28,000
02/28/2017 1000 28,000 26,000
02/28/2017 1200 26,000 24,000
02/28/2017 1400 24,000 22,000
02/28/2017 1600 22,000 20,000
Comment: Inflow management
Issued by: P. Manza
Date: Tue, Feb 14, 2017 at 9:12 AM
Subject: Nimbus Dam – Change Order
Please make the following release changes to the American River
Date Time From (cfs) To (cfs)
02/14/2017 1000 40,000 35,000
02/14/2017 1100 35,000 30,000
As much as possible, please preference use of the upper outlet tubes.
Comment: storage management
Issued by: P. Manza
