KING COUNTY FLOOD
Scope of Services 2018 and 2019
First Quarter Performance Report per
Flood Control District Resolution 2008-17
A report to the Flood Control
District’s Board of Supervisors
highlighting work completed in 2018
and the first quarter of 2019 in
support of the District’s mission to
bring a comprehensive approach to
This report was produced by the Department of Natural Resources and Parks,
Water and Land Resources Division
King Street Center, KSC-NR-0600
201 South Jackson Street, Suite 600
Seattle, WA 98104
Alternate Formats Available
206-477-4727 TTY Relay: 711
Above: Cedar River in Early Fall
Cover photo: Teufel Mitigation Large Wood Project and Riparian Planting
1 | King County Flood Control District 2018 Annual Report
King County Flood Control District Annual Report
Scope of Services | 2
Structural Protection | 5
Hazard Identification and Mitigation | 8
Asset Management | 10
Flood Warning Program | 13
Consulting to County Agencies | 14
Risk Reduction Through Partnership | 15
Attachments | 17-24
Attachment A – 2018 Budget | 17
Attachment B – 2018 Expenditures | 20
Attachment C – 2019 Budget | 22
2 | King County Flood Control District 2018 Annual Report
The Water and Land Resources Division (WLRD) of the Department of Natural
Resources and Parks (DNRP) is the service provider to the King County Flood Control
District (District). This report provides the District’s Board of Supervisors with the status
of work completed in 2018 and the first quarter of 2019 in support of the District’s
mission to bring a comprehensive approach to floodplain management.
Six Service Areas: Reducing Flood Risk through Projects, Programs,
The District’s work program comprises six product families:
Reducing flood risks through physical changes to riverine function.
Hazard Identification and Mitigation
Identifying risks and removing people from harm.
Protecting public investments in flood risk reduction facilities and properties.
Flood Warning Program
Distributing information about flood conditions and self-protection methods.
Consulting to County Agencies
Supporting floodplain-related development regulations and public safety work.
Risk Reduction Through Partnership
Supporting regional partners to reduce risk.
Taken together, these six product families have resulted in a robust floodplain
management program that works with tribal governments, state agencies, cities, towns,
residential communities, and other stakeholders to develop projects and policies that
reduce flood risks throughout our region.
The Metropolitan King County Council created the Flood Control District in 2007 as a
special purpose government, providing funding and policy oversight for flood protection
projects and programs in King County. Since the District’s inception, over 150 capital
projects such as levee and revetment repairs, major capital construction, and feasibility
studies have been completed or are in progress on the District’s 6-year capital program.
Scope of Services
A comprehensive approach to floodplain management in King County
3 | King County Flood Control District 2018 Annual Report
This pie chart shows
for 2018 by the six
described on the
These projects represent an investment of over $760 million in communities and
neighborhoods across the county. At the same time, the District has worked to raise
awareness of flood risk and the importance of emergency preparedness, developed
other programs and policies that help people get out of harm’s way, and partnered with
tribes, governments, agencies, and stakeholders to leverage funds and take additional
actions to address flood hazards in our region.
A Financial Snapshot
Detailed financial information for 2018 and 2019 is attached at the end of this report.
What follows here are charts and other information that provide an overview of 2018
expenditures, the 2019 budget, and the relationship between forecasted expenditures
and the fund balance over time.
The District’s 2019 Budget
Here is a high-level look at the District’s 2019 budget:
Revised capital program budget: $185.8 million (including $106 million carryover
from 2018, pending formal adoption by the District). [Product family: Structural
Protection, Asset Management, and Hazard Identification and Mitigation.]
$46.5 million is allocated to three grant programs (Subregional Opportunity Fund,
Cooperative Watershed Management grants, and Flood Reduction grants.
[Product family: Risk Reduction Through Partnership]).
$45 million is programmed for projects managed by other jurisdictions, including
the cities of Kent, Seattle, and Bellevue, and the U.S. Army Corps of Engineers
(USACE). [Product family: Risk Reduction Through Partnership].
Hazard Identification and
Mitigation, 10.6%Asset Management,
Risk Reduction Through
4 | King County Flood Control District 2018 Annual Report
Actual and Forecasted Flood District Expenditures by Type
The chart below provides a look at actual and forecasted expenditures (represented by
bars and grouped by year) over time and the relationship between those expenditures
and the District’s fund balance (represented by the pink curve). The break in the fund
balance represents the expected increase in productivity resulting from additional staff
authorized by the District in 2017. The chart shows that current forecast expenditures
will result in a negative fund balance by 2022. All forecasted expenditures are based on
key assumptions, such as the timely completion of the Lower Russell Levee Setback
Project and the Pacific Right Bank Flood Protection Project, two of the District’s largest
upcoming projects. Risks to project schedules can be found in the District’s 2019
Capital Budget book.
5 | King County Flood Control District 2018 Annual Report
Structural protection products reduce flood risks through built projects that physically
change or intervene in river processes and functions. These projects are intended to
prevent, control, or reduce flooding inundation or channel migration hazards, and
associated flood risks to people and the built environment.
SNOQUALMIE RIVER BASIN
Tolt Pipeline Protection Project: Protecting Regional Water Supply
The largest construction project of 2018
was the $10.8 million Tolt Pipeline
Protection Project. The Tolt Pipeline, two
parallel pipes that run from the Tolt
Reservoir to the City of Seattle, provides
nearly a third of the region’s water supplies
for more than one million residents in
Seattle, Bellevue, Redmond, Issaquah,
Bothell, Kirkland, the Sammamish Plateau,
Woodinville, Northshore, Lake Forest Park,
and Duvall. One section of the pipeline,
along the lower Snoqualmie River, was at
serious risk. About 1,200 feet of the
revetment failed and was completely gone,
leading to lateral channel migration that
threatened the pipeline.
In addition to reconstruction of the failed revetment protecting the pipeline, required
habitat mitigation included creation of a large off-channel alcove, realignment of a
tributary creek, and riparian plantings of several acres along the river and creek banks.
A new 10 foot-by-10 foot concrete box culvert
equipped with a flood gate now provides
improved flood protection, drainage for nearby
farms, and fish passage. The project was
completed in the fall of 2018.
Reducing flood risks through physical changes to riverine function
Tolt Pipeline Protection Project under
construction on the Lower Snoqualmie River
(pipeline is visible on the right side of the photo)
700 ballasted wood jacks were placed in the Lower Snoqualmie
River to protect the river bank and the Tolt Pipeline
6 | King County Flood Control District 2018 Annual Report
WHITE RIVER BASIN
The Pacific Right Bank Flood Protection Project: Planning for a Flood Risk-
The Pacific Right Bank Project, a companion to the Countyline Levee Setback Project
completed in 2017, is