Pacific Northwest Waterways Association2008 MID-YEAR MEETING

Inland Project Report:Little Goose, Lower

Monumental, the PSMP and the Five Year Funding Plan

Alan FeistnerDeputy District Engineer

USACE, Walla Walla District

Walla Walla District

• Quick Overview of District Area of Responsibility

• Programmatic Sediment Mgmt Pgm (PSMP)

• Little Goose

• Lower Monumental

• Five-Year Planning

Walla Walla District

• Responsible for: – 4 Snake River Dams– McNary Dam on

Columbia River----------------------------– Dworshak Dam and

Lucky Peak Reservoir in Idaho

– Mill Creek flood control in Walla Walla

– Jackson Hole, WY Flood Control Levees

– Idaho Regulatory Program (wetlands, etc)

• FY06/07 – reprogrammed $997K from internal district funds

• FY08 – $2.8M– Initiate data collection and studies– Coordinate w/federal agencies & sediment management group (LSMG)

• FY09 – $6.7M Continue above data collection, studies, and coordination

• FY10 – Continue above data collection and coordination– Draft implementation plan & environmental impact statement (EIS)– Develop sediment reduction best mgmt practices recommendations

• FY11 – Complete data collection & release draft EIS – Public meetings & respond to draft document comments

• FY12 – Release final EIS & sign record of decision (ROD)

Programmatic Sediment Mgmt Program (PSMP) Schedule

Little Goose

Little Goose Repairs

• Rehabilitation Contract Sought in 2008 for:– Downstream Gate (miter-style)

• Cracking, failing quoins & shear stiffeners• Current Risk – potential gate failure

– Upstream Gate (tainter-style) – as contract option• Cracking and pitting • Current Risk – potential gate failure

• Contract(s) not awarded in 2008 given bids were significantly higher than gov’t estimate

Lower Monumental

Lower Monumental Lock Rehabilitation

• Fully Funded Project Costs (Oct 1, 2005 price level)-> $27M

• Benefit to Cost (BC) Ratio-------------------------------------> 2.0

• Report Approved-------------------------------------------------> Sept 06

• Start Plans and Specifications-------------------------------> FY 09

• Fabrication of DS Lift Gate -----------------------------------> FY 10

• Preliminary Lock Outage---------------------------------------> Dec 2010

– Mar 2011

Inland Waterways Trust Fund may not have sufficient funding to support this timeline

Lower Monumental Lock Rehabilitation

LOWER MONUMENTAL

LOCK REHABILITATION

TAINTER VALVES

DOWNSTREAM GATE

Navigation Lock Component Rehab

Plus Electrical & Mechanical Systems

• Rehab driver is downstream gate

• Large lift gate (84 ft tall & 87 ft wide)

• Fatigue failures since early 1990’s

• Corrosion problems

• Cracks worsening every year

• Ice Harbor had similar problems before emergency replacement

Lower Monumental Lock Rehabilitation

Lower Monumental Concrete Stabilization

Areas of initial spall

Initial Spall Conditions (1998)

Stabilization (2005)

Lower Monumental Concrete Stabilization

Current Status (2006)

• Instrumentation continues to monitor movement

• > 200 tons of concrete removed

• Analysis and report completed in 2007

• Recommended repair includes Additional concrete removal Bearing relief and waterstop repair Anchors Crack grouting Total cost = $4 million

Design & Construction Not part of Rehab

5-Year Maintenance Planning for Non-Routine Navigation

• Laura Hicks, Margie McGill, and Robert Leach initiated effort:– Integrate/present unconstrained budget needs

for Snake & Columbia River infrastructure– Speeds and improves funding for system-wide

maintenance efforts…Northwestern Division and HQUSACE using information to pursue funding

– Successfully targeted specific projects, e.g. Channel Deepening and LoMo rehab

2008-2009 Urgent & Compelling

• CRCIP Channel Deepening 08, 09• LoMo DS Gate - interim repairs 08, 09• LoMo Major Rehab 08, 09, 10• Bonneville Old Navlock, Ambursen Section 09,

10, 11& Closure Mono 18

• CRCIP Channel Deepening 09, 10• LoMo Downstream Gate Interim Repairs 09• LoMo Major Rehab 09, 10, 11• Lo Granite Floating Bulkhead Repairs 09, 10• Lo Granite Lock Electrical System 10, 11• McNary Lock Derrick Crane Repair 09• McNary Monolith Joints (repair leaks) 09, 10• McNary Wall Armor 09, 10• McNary Lock Electrical Distribution 09, 10• McNary Bascule Bridge Electrical System 09, 10• McNary Water Damaged Electrical Equipment 09, 10

5-Year Planning (cont)

• Continue 5-year effort– Integrate/prioritize Portland and Walla Walla

non-routine navigation requirements • Present NWD w/integrated list…NWD approves• Projects prioritized 1-N (versus grouped)• Program 3-7 years out…continuously tweak• Constrained (versus unconstrained)

– Develop earlier and continuous program coordination w/PNWA and other stakeholders

Questions