1. Yuba County Comprehensive Flood Protection Program
Three Rivers Levee Improvement Authority
Reclamation District 784
County of Yuba
Yuba County Water Agency
April 23, 2004

2. Local Agencies Participating in Flood Control in Yuba County
Reclamation District No. 784
Marysville Levee Commission
Yuba County Water Agency
Three Rivers Levee Improvement Authority
Special Legislative District

3. Flood History Post Oroville and New Bullards Bar floods
1986 Linda Flood
7,000 acres inundated
4,000 homes & businesses damaged or destroyed
$95 million in damages (1986 dollars)
1997 Arboga Flood
16,000 acres inundated
800 homes & businesses damaged or destroyed
3 lives lost
Describe Yuba River Development Project briefly
Tib
The Yuba County Water Agency was created by the Legislature in 1959 in response to the devastation of the 1950 & 1955 floods inundating Linda, Olivehurst, and Yuba City
The Agency is guided by a Board of Directors consisting of the 5 members of the Yuba County Board of Supervisors and 2 at-large members elected by Yuba County voters:
Al Amaro
Brent Hastey
Don Schrader
Bill Simmons
Hal Stocker
Bill Harper (South of Yuba River)
and myself, Tib Belza as Chair (North of Yuba River)

4. Flood History 1986 Flood View of Linda with Marysville in background
Tib
I would like to start by reminding you that in November 1997 the Agency’s Board of Directors voted to study the possibility of improving the level of flood protection for Yuba Co. residents and initiated the Supplemental Flood Control Program.
Tonight is one of several opportunities for the public to share their input and work with the Agency to improve our protection from future floods. Your participation is important and we hope you will continue, and that you will help us involve more of the community.
The purpose of this public meeting is to report back to you on our progress since the last public meeting held in July this past year.
Since then, we have conducted a screening of all 33 prospective project elements, and are prepared tonight to share our findings.
There is a lot of technical material to present, and we hope to do that clearly, and answer all your questions to the best of our ability.
We also hope to hear from you -- your thoughts about our work, your ideas, your concerns.
I would like to present Curt Aikens now to lead off the presentation.

5. Background (continued)
1997 Arboga Flood
View of 1997 flooding along the Feather River
Tib
I would like to start by reminding you that in November 1997 the Agency’s Board of Directors voted to study the possibility of improving the level of flood protection for Yuba Co. residents and initiated the Supplemental Flood Control Program.
Tonight is one of several opportunities for the public to share their input and work with the Agency to improve our protection from future floods. Your participation is important and we hope you will continue, and that you will help us involve more of the community.
The purpose of this public meeting is to report back to you on our progress since the last public meeting held in July this past year.
Since then, we have conducted a screening of all 33 prospective project elements, and are prepared tonight to share our findings.
There is a lot of technical material to present, and we hope to do that clearly, and answer all your questions to the best of our ability.
We also hope to hear from you -- your thoughts about our work, your ideas, your concerns.
I would like to present Curt Aikens now to lead off the presentation.

6. Flood Control Goals
Short Term – Achieve a 200-year level of protection in RD 784 and 300-year level of protection in Marysville through construction of the Corps Yuba Basin Project
Long Term – Achieve a 500-year level of protection (YCWA Supplemental Flood Control Project Goal)
Describe Yuba River Development Project briefly
Tib
The Yuba County Water Agency was created by the Legislature in 1959 in response to the devastation of the 1950 & 1955 floods inundating Linda, Olivehurst, and Yuba City
The Agency is guided by a Board of Directors consisting of the 5 members of the Yuba County Board of Supervisors and 2 at-large members elected by Yuba County voters:
Al Amaro
Brent Hastey
Don Schrader
Bill Simmons
Hal Stocker
Bill Harper (South of Yuba River)
and myself, Tib Belza as Chair (North of Yuba River)

7. Flood Control Projects
Corps System Evaluation
Corps Yuba Basin
Yuba-Feather Supplemental Flood Control Project Y-FSFCP
Describe Yuba River Development Project briefly
Tib
The Yuba County Water Agency was created by the Legislature in 1959 in response to the devastation of the 1950 & 1955 floods inundating Linda, Olivehurst, and Yuba City
The Agency is guided by a Board of Directors consisting of the 5 members of the Yuba County Board of Supervisors and 2 at-large members elected by Yuba County voters:
Al Amaro
Brent Hastey
Don Schrader
Bill Simmons
Hal Stocker
Bill Harper (South of Yuba River)
and myself, Tib Belza as Chair (North of Yuba River)

8. Corps System Evaluation Project
Goal was to fix the levees to handle the 1957 design water surface profile
RD 784 & Marysville Ring Levee
Improvements constructed between 1997 & 1999
Site 7 Extension to be constructed in 2004
Total cost is $49.7 million
YCWA betterments $2.4 million

10. Corps Yuba Basin Project History
In 1988, the Corps of Engineers initiated the Yuba Basin Project
15 years of study and analysis
Target level of protection 200-year RD 784 & 300-year Marysville
1998 Feasibility Study did not identify a need for work on the RD 784 Lower Feather, Bear & WPIC Levees for 200-year level of protection
Construction initially targeted for 1997
Initial cost estimate $28 million
Congressional authorization 1999 (Chief’s Report)
Congressional approved construction start 2002

12. Yuba Feather Supplemental Flood Control Project
YCWA initiated feasibility study after 1997 flood to achieve a 500-year level of protection
YCWA Study & South Yuba Wild & Scenic River SB 496 led to Costa-Machado Water Act (Prop 13) $90 million for Feather & Yuba
Focused on improvements past base case of 200 & 300-year level provided by the Yuba Basin Project

13. Y-FSFCP Components Colgate Tailwater Depression
New Bullards Bar Increased Outlet Capacity
Feather River Levee Setbacks (upper & lower)
Forecast Coordinated Operations
Thermalito Reoperation and Oroville Surcharge concepts handed off to DWR

14. Changing Conditions 1997 Flood Event DWR Floodplain Mapping Study
New underseepage guidelines – requires more work to achieve a given level of protection
Revisions to hydrology
DWR Floodplain Mapping Study
Identified FEMA deficiencies in RD 784
Lower RD 784 freeboard deficiency
Yuba River left bank stability problem
Describe Yuba River Development Project briefly
Tib
The Yuba County Water Agency was created by the Legislature in 1959 in response to the devastation of the 1950 & 1955 floods inundating Linda, Olivehurst, and Yuba City
The Agency is guided by a Board of Directors consisting of the 5 members of the Yuba County Board of Supervisors and 2 at-large members elected by Yuba County voters:
Al Amaro
Brent Hastey
Don Schrader
Bill Simmons
Hal Stocker
Bill Harper (South of Yuba River)
and myself, Tib Belza as Chair (North of Yuba River)

15. Changing Conditions Impact
Corps Yuba Basin Project
No longer provides a 200-year level of protection for RD 784, especially in southern RD 784
Underseepage requirement increased cost, requiring increase in Section 902 limit
LRR initiated in 2003 with goal of construction ASAP
GRR contemplated for remainder of RD 784 & MLC
LRR preliminary result identify $108 million project cost, but benefits will only support $90-$100 million
LRR scheduled completion date May 2005
Corps Yuba Basin Project decision point: Proceed with LRR or switch to GRR given new LRR schedule

16. DWR Floodplain Mapping Impact
May 28, 2003 DWR released preliminary that identified 100-year deficiencies in RD 784
DWR Floodplain Mapping Study - unknown impact on the remainder of RD 784 & MLC levees
Levee shown as failed unless enough geotechnical data to show otherwise
Deficient levee reaches require FEMA certification

17. Proposed Strategy
Goal – 200-year protection for RD 784 and MLC in the short term
Proposed Strategy
Add WPIC and Bear River levees work to the
Y-FSFCP
Move Corps Yuba Basin Project to a GRR
Include WPIC, Bear improvements and Feather River levee setbacks in GRR
Request section 104 credit for Y-FSFCP towards Yuba Basin Project GRR

18. Proposed Strategy Continued
Secure local funding for WPIC, Bear and Yuba levee work
Plumas Lake Mello Roos
Proposition 13 funds
YCWA funds
Construct WPIC, Bear and Yuba levee projects as-quickly-as possible
Leverage local and Proposition 13 expenditures for Yuba Basin non-Federal share
Complete Corps Yuba Basin Project GRR and construct project

19. South County Floodplain Issues: Local Response
DWR provided notification to locals in May of 2003
Locals funded and completed a problem identification study in Nov 2003 ($500K)
First phase of alternatives analysis completed March 2004
Y-FSFCP analysis of levee setback alternatives (underway since 2003) re-tracked to address South County issues

20. South County Floodplain Program Goals
Identify the extent of issues to be resolved to achieve FEMA certification
Evaluate alternatives to provide the greatest level of flood protection possible
Develop a financing plan
Develop an implementation timeline
Develop a solution that is politically, socially, and environmentally acceptable

21. Revised Y-FSFCP Strategy
Level of Protection – 200-year minimum goal
Phase 1 and 2
100-year WPIC & Upper Bear
Yuba River
Bear River Orchard
Olivehurst Detention Basin
Relocate or Improve Pump Station No.6
Phase 3
200-year with levee setback on Feather & Bear, or
100-year by improve existing lower Bear River levee

23. FEMA Fix vs. Y-FSFCP Costs
Local Funding: $25M
100-Year Solution
Goal 200-Year
Project: Strengthen existing levees to 100-year level of protection
Cost: $25 Million
Completion: November 2005
Project: Strengthen existing levees, plus setback levee
Cost: $48-$75 Million
Completion: November 2006 (fast-track)
Specific Project Elements:
Upper Bear/ WPIC improvements
Yuba River Improvements
Pump Station #6
Bear River Floodway
Olivehurst Detention Basin
Lower Bear/Feather Improvements
Same as 100 year plan on upper Bear and WPIC
Bear/Feather River Setback Levee

24. Funding Strategy Prop 13 grant funds potentially available $55 million
Net funds from local bond proceeds
$25 million
Total potential construction budget
$80 million
Additional funding potential:
CDF&G enhancement funds for land purchase
$15 million
Total potential construction budget, with additional funding sources:
$95 million

25. Y-FSFCP Phase 1
Goal – Restore design condition for WPIC and Upper Bear
Rec Board permit application has been submitted on the following features:
Strengthen WPIC and Bear River above Hwy 70 to pass the 1957 design profile
Erosion protection
Filling of landside ditch
Levee raising is not included in this phase
Other work that may be added to Phase 1
Yuba River FEMA critical reach (only strengthening required)
Bear River Orchard Removal
Olivehurst Detention Basin

26. Components of Current Rec Board Permit Application

27. Schedule for Y-FSFCP Phase 1 – 2004 Strengthen WPIC & Upper Bear
Yuba River FEMA Critical Site
Bear River Orchard
Olivehurst Detention Basin
EIR for Levee Setback
Phase 2 – 2005
Relocate or Improve Pump Station No.6
Raise WPIC and Bear River levees upstream of Hwy 70
Land acquisition if setback levee is feasible
Phase 3
Construct setback levee if feasible, or
Strengthen Bear River levee downstream of Hwy 70

28. Local Funding Plan
Mello-Roos or other bond structure under consideration, but is contingent on development of Plumas Lake
Target for net proceeds is about $25M
Initial proceeds as early as July 2004

29. Contingency Plan 100-year project can be completed with local funds
Addresses funding or CEQA issues outside of local control
Requires Rec Board approval of programmatic permit for staged 100 & 200-year plans

30. Corps Yuba Basin Project GRR
Project scope expanded to all RD 784 & MLC
Changing conditions necessitates reanalysis of all RD 784 & MLC levees
Opportunity to integrate YCWA levee setback flood control planning effort into Corps Yuba Basin Project
Address all DWR issues
Yuba River patrol road
Yuba River goldfields
Yuba River right bank levee in Marysville
Add Feather River levee setbacks
Address lower RD 784 levee issues

32. Corps Yuba Basin Project Local Participation & Cost Share
Y-FSFCP Program
Total cost for this program is $48-$75 million
Project cost potentially creditable through Corps Section 104 authority
Completed in 2-3 years
Addresses FEMA certification
Projected cost for Yuba Basin Project is $225 million
State share = $55 million
Local share = $24 million
Section 104 credit will significant reduce non-Federal share

33. Summary
Provides improved protection for the existing 24,500 residents quickly
Provides a plan for 200-year protection
Lessens State flood damage liability
Provides significant portion of Corps Yuba Basin Project non-Federal share by leveraging Prop-13 funds through Section 104 credit
Requires Mello Roos funds

34. Next Steps Specific requests to Rec Board:
Grant Programmatic approval for Y-FSFCP Program
Necessary for securing local financing
Grant specific approvals for elements targeted for design & construction in 2004
Support GRR approach for the Yuba Basin Project