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  • Floodplain Map
  • Creeks of Boulder
  • Floodplain Development
  • Be Prepared
  • Community Resilience

Respond to Floods

When a flood warning is issued, tune to local news, visit, and prepare to move to higher ground.

Real-time Flood Gauge

Boulder Creek Surface Water Levels


When community evacuations are deemed necessary, local officials may notify you using one or more of the following: the Emergency Notification System, National Weather Radio network, outdoor warning sirens, and the Emergency Alert System. Local media may also provide valuable information regarding the evacuation process and prescribed routes for safe evacuation. The amount of time you have to evacuate will depend on the nature of the disaster, so be prepared to leave at a moment’s notice. You should have enough supplies on-hand should you have to leave with limited warning.

  • Assemble an emergency kit.
  • Determine where you will go if you must evacuate and communicate the location with everyone in your household.
  • Map multiple evacuation routes. During certain types of emergencies, some roads might be impassable.
  • Make arrangements ahead of time with relatives and friends you may be able to stay with during an evacuation.
  • In some instances, mass care shelters may be opened to provide sheltering to individuals who have been temporarily displaced from their homes. Pay attention to local authorities and news media to see if such a shelter is available. If you have other options for shelter available to you, make use of them instead of a mass care shelter.


There may be times when you are instructed to “shelter- in-place.” The actions you take will differ depending on the situation. When making your family emergency plan, discuss which rooms in your home will be your “safe rooms” for each type of disaster. Different scenarios will require different locations to shelter-in-place. For example, during a tornado warning, you should go to a basement or an interior room on the lowest floor. During a hazardous materials spill or chemical event, you should go to an above ground room, since many chemicals are heavier than air. In all shelter-in-place scenario’s, listen to instructions provided by local authorities if they are available. When instructed to shelter-in-place:

  • Close all doors and windows.
  • Turn off ventilation systems (heating and air conditioning) and close fireplace dampers.
  • Take your disaster supplies and a radio with you. Go to a room with the fewest doors and windows and seal the room. Cut plastic sheeting to fit over windows and vents ahead of time, then secure it with duct tape.
  • Place a damp towel at the base of the door.
  • Stay in the room and listen for news on the radio or television. Do not come out until you are told it is safe, or you are told by authorities to evacuate.
  • Consider keeping some basic disaster supplies (flashlight, radio, water and food) in each of the safe rooms in your home. Or, you might plan to take your “go” kit with you to your safe room.

Request Flood Cleanup - Creek and Culvert Debris

If there is an issue with a creek or culvert that poses an IMMEDIATE threat to public safety, CALL 911 and public safety officials will visit the site immediately to assess the situation.

For issues that are not immediate threats, call 303-441-1856 or make an online service request for Flood Cleanup – Creek & Culvert Debris and a staff expert will contact you.

Sewer Backups

If there is a sewer backup on your property, call 303-413-7100 immediately to request the city’s assistance to help you determine the cause and possible resolution of the issue.

Water & Sewer Systems Fact Sheet pdf

Flood Safety

  • Move to higher ground immediately.
  • Stay out of floodwaters.
  • Avoid driving through flooded areas.
  • Stay away from power lines and electrical wires.
  • If time allows, turn off electricity and gas.

Boulder County Flood Recovery

Boulder County Flood Recovery Resource Guide pdf