White River Basin Project Overview Countyline Levee King County - - PowerPoint PPT Presentation

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Nov 02, 2022 331 likes •474 views

White River Basin Project Overview Countyline Levee King County Setback Right Bank Pacific Levee Setback Temporary Flood Pierce County Protection Measures BNSF Railway King County FCD Capital Projects Right Bank Levee Setback

SLIDE 1

White River Basin

Pierce County King County

Project Overview

Countyline Levee

Setback

Right Bank Pacific

Levee Setback

Temporary Flood

Protection Measures

SLIDE 2

King County FCD Capital Projects

Alluvial Fan

Add figure here with project sites

utlined

Right Bank Levee Setback Countyline Levee Setback 8th Street BNSF Railway KC – PC Boundary

SLIDE 3

White River Estates

February 2012 ‐‐ 7300 cfs

SLIDE 4

Two Large‐Scale Projects

 Countyline (60%)  Pacific Right Bank

(Feasibility) For Countyline: Much lower flood risks in Pacific

 200 residential homes  $52M assessed value  $13M contents value

Both Capital Projects: 1% annual flood protection and 3 feet of freeboard (in future channel conditions)

Flood Protection

Pacific Sumner

SLIDE 5

Countyline Levee Setback Preliminary Design

60% design level
Wetland delineations
Basis of Design documents
Fed/State/Local Applications
Land Acquisitions
Funding Agreements

SLIDE 6

Countyline Funding and Costs

Funding Dollars in millions King County Flood Control District $ 8.702 Salmon Recovery Funding Board Grant $ 0.823 Natural Resources Damage Assessment Parties $ 4.775 Pierce County $ 0.500 Project Funding Total $14.8 M Estimated Costs Dollars in millions Planning / Design / Permitting $ 2.4 Land Acquisitions * $ 1.3 Construction** $ 10.1 Construction Management $ 1.0 Total Estimated Cost $ 14.8 M

SLIDE 7

Countyline Major Milestones

2014

 Permit approvals expected  Complete land acquisitions and execute funding

agreements

 Complete final plans and bid package  Receive Pierce County funding and easement

2015 / 2016

 Two Year Construction Period

SLIDE 8

Right Bank Pacific Levee Setback Conceptual Alignment

SLIDE 9

 Feasibility Studies  Land Acquisitions

(3rd Place SE & White River Estates)

Right Bank Pacific Project Status

Wetland delineation
Cultural and

historical resources

SLIDE 10

Feasibility Evaluations

Geotechnical Investigations
3rd Avenue / 3rd Place SE / park area
Alignment of levee segments
White River Estates / 3rd Avenue
Government Canal / Butte Avenue levee tie‐in
Groundwater conditions

Right Bank Pacific Levee Setback

SLIDE 11

Right Bank Pacific Major Milestones

 2014‐2015

 Planning and Feasibility  Preferred alignment alternative 4th qtr 2015  Acquisitions (surplus or demolition)

 2016‐ 2017

 Design and permitting  Acquisitions (surplus or demolition)

 2018 ‐2019

 Construction

SLIDE 12

Temporary Flood Protection Measures

Protecting 3rd Place neighborhood

October 2013 Emergency Maintenance

SLIDE 13

Temporary Flood Protection Measures

Double tall along Pacific Park and 3rd Avenue Protecting 4th Avenue apartments by Pacific Park

October 2013 Emergency Maintenance

SLIDE 14

White River Basin

Questions ??

Jeanne Stypula, Basin Supervising Engineer (206) 477‐4833 Jeanne.Stypula@KingCounty.gov