Two rivers frame Gladstone. The Clackamas forms its southern boundary with Oregon City and flows into the Willamette right at the city's edge, about 12 miles south of downtown Portland. The city lies at about 89 feet of elevation and averages a little over 46 inches of precipitation a year, nearly all of it between fall and spring. That is enough water, and enough river frontage, to make both flooding and everyday leaks part of local life.
Help is a phone call away through The Restoration Job, which charges callers nothing. Dial (888) 317-9980 around the clock and you will be referred to an independent restoration provider that serves Gladstone and nearby Clackamas County communities. The provider carries out the inspection, cleanup and drying and arranges the work directly with you.
How the call works: when you call (888) 317-9980, The Restoration Job connects you with an independent restoration provider that serves Gladstone. That provider inspects the damage, explains the scope and quotes the work. The Restoration Job doesn't perform restoration itself. Read our referral disclosure.
Where the Clackamas Meets the Willamette
The Clackamas runs about 83 miles from the slopes of Olallie Butte in the Mount Hood National Forest and drains roughly 940 square miles before it reaches Gladstone. Heavy rain in the Cascades, sometimes on top of snow, can raise it quickly, and when the Willamette is high at the same time, water near the confluence has nowhere to go. Clackamas County's flood preparedness materials include footage of the 1964 Christmas flood at the Clackamas-Willamette confluence, and in February 1996 the Willamette crested at 28.6 feet in Portland, more than 10 feet above flood stage.
The area's flood history runs much further back. The Great Flood of 1862 destroyed nearby river settlements, including Linn City and Canemah. Riverside parks such as Meldrum Bar, Dahl Beach and High Rocks sit along the rivers, but homes on the lowest streets near both rivers are the ones to watch. When river water enters a building, flood cleanup has to treat everything it touched as contaminated.
A Chautauqua Town With Older Homes
Gladstone grew up around the Willamette Valley Chautauqua, which drew summer crowds from 1894 until 1927, and Portland Avenue, the main street, once carried passengers between Gladstone and Portland. Today the city has about 4,700 households, and roughly 40 percent of them rent. The housing mix includes older single-family homes as well as apartments and newer construction.
Older houses come with their own water risks: aging supply lines and drain pipes, worn roof coverings, and crawl spaces or basements that were not built with modern moisture control. In rental buildings, a leak in one unit often reaches the next. Either way, the plan for water damage restoration should start with finding every wet surface, including cavities you cannot see.
Alerts, Sandbags and Flood Coverage
Gladstone's emergency management page points residents to Flash Alert, NOAA Weather Radio, local AM 1660 and reverse 9-1-1 for warnings, and recommends keeping at least three days of supplies, ideally two weeks. Clackamas County publishes a list of sandbag distribution sites and a flooding preparedness page, and it notes that six inches of moving water is enough to knock a person down.
On insurance, the county points to the National Flood Insurance Program. Standard homeowners policies do not cover river or surface flooding, so property owners near either river should look up their parcel on FEMA's flood map and talk to an agent before the rainy season, since new policies usually have a waiting period.
Gladstone Checklist: The First Day
- If river water is rising, follow official evacuation advice before thinking about property.
- For a plumbing leak, shut off the main valve and turn off power to wet rooms if the panel is dry and safe to reach.
- Photograph and video every affected room before cleanup.
- Report the loss to your insurer; renters should also tell the landlord in writing.
- Move furniture and keepsakes to a dry area and get wet rugs off the floor.
- Have a provider measure moisture under flooring and inside walls before deciding what stays.
Riverside Dampness and Mold Risk
Between the rivers and a long wet season, Gladstone houses spend months in humid air. Wet materials that do not dry within a day or two can start growing mold, and crawl spaces and basements are where it tends to start unnoticed. Persistent musty odors, warped trim or stains low on walls are worth investigating.
Drying with dehumidifiers and air movers prevents most growth. If mold is already established, mold remediation isolates the area, removes affected materials and addresses the moisture source. Callers in Canby, farther up the Willamette, face a similar mix of river and plumbing water.
Gladstone Neighborhoods and Surrounding Towns
The same line also serves nearby communities such as:
- Oregon City
- West Linn
- Milwaukie
- Oak Grove
- Jennings Lodge
- Johnson City
Questions From Gladstone Property Owners
Which parts of Gladstone are most likely to flood?
Low ground closest to the Clackamas and Willamette rivers carries the most risk, especially near the confluence where high water on both rivers can back up. Most of the city sits higher, but that varies street by street. Look up your parcel on FEMA's Flood Map Service Center and sign up for county alerts so you hear about rising rivers early.
Where can I get sandbags in Gladstone?
Clackamas County maintains a list of sandbag distribution sites on its disaster management website. Sandbags are useful for diverting shallow water from doors and garage openings. For deeper river flooding, moving belongings upstairs and leaving early when officials advise it is the safer approach.
Can a restoration company deal with my insurance company?
Restoration providers commonly document damage with photos and moisture readings that support your claim, and many are used to working alongside adjusters. The policy itself is between you and your insurer, though, so report the loss promptly, keep copies of everything, and confirm with the adjuster before major demolition if you can do so without delaying drying.