1. Sunrise stranding pool 1 year monitoring report Sunrise stranding pool 1 year monitoring report Tim Horner CSUS Geology Department SACRAMENTO STATE

2. Problem: Fry migrated onto floodplain during high spring flows Flows receded Pool was disconnected from main channel at flows < 3000 cfs 1000's of fry were trapped, overheated, eaten

3. Isolation pool: river mile 19.7 Site location: Sunrise Blvd. From: Sacramento County American River Parkway Map

4. Concept: 2004 Purpose: Low budget remediation of stranding pool (identified in RCMP) Construction: 10/1/05 Sponsored by: Water Forum, SAFCA, BOR, California Fly Fishers Unlimited, Fly Fishers of Davis, Granite Bay Fly Casters, Sacramento County, CSUS Geology Dept. Philip Williams and Associates Monitoring: CSUS Project history:

5. Connect stranding pool to the main channel Maintain connection at flows > 2000 cfs Connecting channel specs: 4' wide 1' deep Project goals:

6. Methods: Bucket and shovel Bobcat Backhoe

7. Questions: effectiveness of volunteers durability of project 11/2/05: initial measurements 12/20/06: 1 year update Measurements: Perimeter shape and position Width Depth Water temperature Grain size Post-project monitoring: SACRAMENTO STATE

8. 20062005 River discharge: 2007 Construction date 11/2/05 monitoring 12/20/06 monitoring 35,000 cfs max. outflow From: http://cdec.water.ca.gov

9. Measurements: Length and width (tape measure) Depth (cross sections) Grain size (pebble counts)

10. Measurements: Walked perimeter with GPS Installed temperature loggers Temperature logger in pond

11. 12-20-06 1950 cfs 11-3-05 2050 cfs Pond perimeter:

12. Pond depth: November 2005 longitudinal cross section (2050 cfs) December 2006 longitudinal cross section (1950 cfs)

13. Pond width: November 2005 lateral cross section (2050 cfs) December 2006 lateral cross section (1950 cfs)

14. Connecting channel: November 2005 connecting channel cross section (2050 cfs) December 2006 connecting channel (1950 cfs)

15. Pond temperature:

17. Pebble counts:

18. Pebble counts: 2005 vs. 2006

19. Opening the connecting channel:

20. Web page:

21. Volunteers are good, but a BobcatVolunteers are good, but a Bobcat is better New channel withstood 35,000 cfs flow (10 year event) with little changeNew channel withstood 35,000 cfs flow (10 year event) with little change Vandalism was the biggest problemVandalism was the biggest problem Signs or information for theSigns or information for the public might help public might help Conclusions: SACRAMENTO STATE