When storm, creek or ground water is the problem
Flood damage restoration in Bothell, WA covers water that comes from outside the plumbing: a storm that overwhelms drains, a creek that spills, or groundwater pushing through a foundation. This water is usually Category 3, so it needs protective gear, removal of porous materials and disinfection. Our 24/7 line is open, and the first calls are about safety.
While you wait for a crew
- Stay out of the water if you can. It may hide sharp debris and may carry sewage.
- Do not turn on electrical panels or touch outlets in a flooded space. Call your utility or 911.
- If the basement is flooded, do not drain it faster than the water outside is falling.
- Wear boots and gloves, and keep children and pets away.
Why Bothell floods the way it does
Bothell sits along the Sammamish River and straddles King and Snohomish counties. King County says a US Army Corps of Engineers flood control project completed in 1966 channeled the whole river, and that the river generally stays within its banks downstream of Woodinville. A 2002 county plan puts the floodplain at about 1,000 feet wide near Bothell and notes that the channel was never designed to control winter flooding.
The city's 2025 hazard plan says 6.10 percent of Bothell's land lies in special flood hazard areas, including 3.39 percent in Zone X protected by a levee. It lists December 2007 as the most recent significant flood, with heavy rain from December 1 to 17, and says minor flooding happens in low-lying spots along North Creek. It also lists zero repetitive-loss properties.
North Creek, past floods and what they mean now
The Snohomish County flood insurance study, revised June 19, 2020, covers 3.1 miles of North Creek inside Bothell from the county line to 208th Street SE and maps it as Zone AE with a floodway. It records floods in March 1950, December 1975 and January 18, 1986. In 1986 a berm gave way and flooded the area between the west levee and I-405, with no significant damage reported.
That history is modest, but the creek is mapped for a reason. If your home is near North Creek, check the FEMA flood map for your address, because the answer decides whether flood insurance matters. The Washington insurance commissioner says a typical home policy does not cover flooding.
| Topic | What the agency says |
|---|---|
| Typical homeowners policy. | Does not cover damage caused by flooding. |
| National Flood Insurance Program. | Coverage on a new policy starts 30 days after it is written, unless a lender requires it sooner. |
| Residential limits. | Up to $250,000 for the building and $100,000 for contents. |
| Groundwater seepage. | Water seeping into the home from the ground is not usually covered under a standard policy. |
Flood water in a Bothell home?
Call the 24/7 line. Scope and price are explained before work starts.
Basement flooding cleanup
Public Health Seattle and King County gives specific advice for flooded basements. Do not drain water inside the basement until most of the water on the outside of the walls has gone down, and pump at the same rate that the flood waters recede. Pumping too fast can put pressure on walls and floors. Electric sump pumps stop working if the panel floods.
The same agency says to start drying the basement as quickly as possible to limit wood decay and mold. We pump in stages, remove saturated carpet and pad, cut out wet drywall and insulation, then dry the framing and slab. Wet basements that are never fully dried are where mold often starts.
Sewage backup cleanup
A sewage backup is a Category 3 loss. The EPA warns that flood water may contain high levels of raw sewage or other hazardous substances, and the CDC says to throw away items that cannot be disinfected, such as wall coverings, cloth, rugs and drywall.
In Bothell, find out who provides your sewer service before you call about the line. The city says several districts operate in and around Bothell, and Northshore Utility District serves parts of the city. A blocked line is a plumber's job. Removing and disinfecting what the sewage touched is ours.
Slopes and the rainy season
The city's hazard plan says about 7.88 percent of Bothell's land is in potential landslide areas and that the southwest portion, mainly south of SR 522 and west of I-405, sees localized landslides semi-regularly in the rainy season. It names Valhalla, Regents Wood, Amber Ridge, Norway Hill, Brentwood and Queensborough among the neighborhoods affected in the past.
Water running down a slope can reach a foundation wall or a crawl space even when no river is involved. If soil is moving, call 911 and leave the building. Otherwise tell the dispatcher about the slope when you call.
What affects the cost of flood damage restoration
Flood losses vary more than most, so scope is set on site and explained in writing before work starts.
Water category
Flood water is usually Category 3, which adds protective equipment and disinfection.
Depth and duration
Deeper and longer exposure means more materials removed.
Affected area
A flooded crawl space and a flooded finished basement are different jobs.
Drying days
Concrete, framing and subfloors can hold water for days.
Rebuild scope
Replacing drywall, flooring and fixtures is a separate scope.
Insurance rules for flood differ from other water claims. Check your policy and ask your insurer.
Permits in flood areas
Bothell's municipal code requires a development permit before construction or development begins inside any area of special flood hazard, and it is separate from other permits. The public works director administers that article. If your rebuild sits inside a mapped flood area, ask the city before you start.
For an urgent loss, drying and removal begin first. The permit question comes before the rebuild, not before the emergency.
Related work and nearby towns
Standing water in a home goes through emergency water removal, and then water mitigation dries the structure. After the building is dry and clean, water damage repair puts it back together. Mold risk after a flood is real, so see mold remediation if dampness lingers.
Creek flooding is also the main story in Woodinville, where blocked culverts cause local flooding, and in Lynnwood along Scriber Creek.
Common questions about flood damage restoration
Yes. The dispatch line is answered at all hours, including nights, weekends and holidays. Storms create heavy call volume, so tell the dispatcher about depth, power and sewage. We offer same-day response when available and do not promise an arrival time.
Look it up on the FEMA Flood Map Service Center. The city's 2025 hazard plan says 6.10 percent of Bothell's land is in special flood hazard areas, so most addresses are not, but low spots along North Creek and the Sammamish River may be.
The Washington insurance commissioner says a typical home policy does not cover flooding. Flood coverage is separate, and a new National Flood Insurance Program policy starts 30 days after it is written unless a lender requires it sooner.
No. Public Health Seattle and King County says not to drain a basement until most of the water outside the walls has gone down, and to pump at the same rate that the flood waters recede.
It can be. The CDC and EPA both warn that flood water may contain sewage or other contamination. Avoid contact, wear boots and gloves, and wash with soap and clean water afterward.
Groundwater seepage is usually treated as a drainage problem rather than a flood by insurers, and it is generally not covered. Restoration dries and repairs the damage. A waterproofing contractor fixes the cause.