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Emergency Preparedness

How to Shut Off Your Water Main in Portland

Knowing where your shutoff is before a pipe bursts can save thousands in water damage. This is the most important thing to find in your home today.

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Three Shutoff Points in Every Portland Home

Find all three now. In an emergency, you’ll use whichever you can reach first.

Interior Main Shutoff

Usually near where the supply line enters the home — in the basement, utility room, or crawl space access point. Turns water off to the whole house.

Meter Box Shutoff

Located in a concrete box at the property line, typically at the sidewalk edge. Requires a meter key or flathead screwdriver for older gate valves.

Individual Fixture Shutoffs

Under every sink and behind every toilet. These shut off only that fixture — useful for an isolated repair without cutting the whole house.

Portland Water Bureau

For street-side emergencies or a stuck meter shutoff, call Portland Water Bureau at (503) 823-7404. They can shut the street valve if the meter shutoff is inaccessible.

Find Your Interior Main Shutoff First

The interior main shutoff is the fastest and easiest to reach in a burst pipe emergency. It’s located inside the home where the water supply line enters from the street — typically in the basement near the front wall, in a utility room, or near the crawl space access hatch. Turn this valve clockwise to close. On a ball valve (lever handle), turn the handle perpendicular to the pipe. On a gate valve (round wheel handle), turn clockwise until it stops.

Do this now, before any emergency: find the shutoff, confirm it turns freely, and tag it with a piece of tape or a marker so anyone in your household can find it in the dark under stress. A shutoff valve that hasn’t been operated in years often seizes. If yours feels stuck, don’t force it — call us to have it replaced with a ball valve before the next freeze season.

How Portland Water Meters Work

Portland Water Bureau meters are housed in a concrete or plastic box set in the ground near the sidewalk edge or property line. Lift the lid — some require a meter key (a T-shaped tool available at hardware stores) and some have a pull handle. Inside you’ll see the meter register and, on most Portland installations, a shutoff valve on either side of the meter or a curb stop before the meter.

The customer-side shutoff (on the house side of the meter) can be operated with a flathead screwdriver or a quarter-turn ball valve depending on installation age. Turn clockwise to close. Older gate valves in pre-1970 Portland installations may require multiple full turns and should be operated slowly to avoid shocking aging fittings.

The street-side valve (before the meter) is Portland Water Bureau property. Do not operate it. If the customer-side valve is inaccessible or seized, call Portland Water Bureau at (503) 823-7404 — they operate 24 hours and can shut the street valve in an emergency.

Meter box location tip for Portland:

In most Portland neighborhoods, the water meter is located in a box along the public sidewalk, directly in front of the property. In some inner SE and NE neighborhoods with older utilities, the meter may be closer to the house near the foundation. If you can’t find it, check your Portland Water Bureau account — the meter location is on file.

Step-by-Step: Shutting Off the Water in an Emergency

Step 1 — Get to the interior main shutoff immediately. Turn the valve clockwise to close. If it’s a lever (ball valve), rotate it perpendicular to the pipe direction. Time from burst pipe to shutoff should be under 60 seconds if you know where the valve is.

Step 2 — Open a faucet at the lowest point in the house (a basement utility sink, or a ground-floor bathroom faucet) to let remaining pressurized water drain from the pipes. This relieves residual pressure and reduces dripping from the burst section.

Step 3 — If the interior shutoff didn’t fully stop flow (partial seat failure on an old gate valve), go to the meter box. Bring a flathead screwdriver and a meter key if you have one. Close the customer-side valve at the meter.

Step 4 — Call for emergency plumbing service. The repair itself is usually quick. The most important action — limiting the water damage window — is already done.

What Tools to Keep Ready

  • A meter key (T-handle wrench, ∼$15 at any hardware store) for the meter box lid and valve
  • A flathead screwdriver for older quarter-turn curb stops
  • A flashlight or headlamp for crawl space shutoff valves
  • A tag or marker to label your interior shutoff so others can find it

Individual Fixture Shutoffs: When to Use Them

Every toilet, sink, dishwasher, and washing machine has its own shutoff valve. These are for isolated fixture failures — a toilet supply line crack, a sink valve failure, a dishwasher line split. Fixture shutoffs let you stop water to the problem fixture without cutting the whole house. Check that each fixture shutoff turns freely once a year. Many Portland homes have original fixture shutoffs that are 30–40 years old and have never been operated — these often seize or fail when first turned, sometimes creating a second emergency.

After the Shutoff: What’s Next

Once water is off, document the damage with photos and video before touching anything. Move electronics, rugs, and furniture away from wet areas — after photographing. Then call for emergency burst pipe repair. Our team arrives with repair materials on the truck — for most residential burst pipe repairs, we complete the fix in one visit. Full details on what the repair involves and what it typically costs in Portland are at our burst pipe repair Portland page — the same licensed team that handles the repair also provides the insurance documentation your adjuster will need.

Pipe burst and you can’t find the shutoff? Call us — we’ll walk you through it by phone while a plumber is on the way.

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Common Questions

Portland homeowners ask these in the middle of emergencies — know the answers now.

In most Portland single-family homes, the interior main shutoff is in the basement or utility room near the front wall, where the supply line enters from the street. Crawl-space-only homes often have the shutoff inside the crawl space access area or near the foundation at the exterior.
A meter key (T-handle wrench) for the lid and valve, or a flathead screwdriver for quarter-turn curb stops. Available at any hardware store for about $15. Keep one near your emergency kit.
Yes. Portland Water Bureau operates 24 hours. Call (503) 823-7404 for water emergencies. They can shut the street-side valve if the meter shutoff is inaccessible or seized.
Don’t force it — a forced seized gate valve can snap the stem and make the situation worse. Call Portland Water Bureau to shut the street valve, then call us to replace the interior shutoff with a modern ball valve.
The interior valve is faster — if you know where it is. Meter shutoffs add 2–3 minutes: finding the box, lifting the lid, and operating the valve. Every minute of water flow after a burst adds significant damage, so the interior shutoff wins on speed every time.

Related Reading

Why Pipes Burst in PortlandSigns of a Burst PipeBurst Pipe Repair Cost

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