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What to do Before, During, & After a Flood


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The City of Roseville is located within portions of two major drainage basins: the Pleasant Grove Creek Basin and the Dry Creek Basin. Pleasant Grove Creek and its tributaries drain most of the western and central areas of the city, while the Dry Creek basin and its tributaries drain the remainder of the city. The Dry Creek system has year-round flows in its major watercourses, while the Pleasant Grove system is intermittent in nature with only seasonal flows. As a result, portions of the city lie within a flood hazard area as was evidenced by the 1986 and 1995 floods. However, since 1950, there have been no reports of structural flood damage along Pleasant Grove Creek and there are presently no structures subject to flooding within the Pleasant Grove Creek basin due to the City's floodplain management policies.

Seven creeks, draining the 80-square-mile Upper Dry Creek Basin, pass through and join within the city limits of Roseville. The northern boundary of the Upper Dry Creek Basin is in the Newcastle area. The Basin does not include runoff from snow melt in the Sierras. Less than seven percent of property within the City of Roseville is affected by flooding and most of this property is open space (vacant land).

The potential for flooding is present during every winter season. The following information has been prepared by the City of Roseville to help you plan for, avoid and, if necessary, respond to a flood.

Hazard Mitigation Plan

The City of Roseville has developed and adopted a mitigation strategy for all hazards that may impact the City of Roseville.  A flood warning system has been implemented for areas which are within or adjacent to the Flood Hazard area. The plan shows the areas of possible flooding as well as a proposed strategy to reduce the flood threat. Click here for additional information.

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Roseville Flood Warning System

A flood warning system has been implemented by the City of Roseville for areas. In the event flooding may occur, warnings will be broadcast on Roseville's Government Access Channel (Cable Channel 14/73, AM 530 radio, and the City of Roseville website). 

Roseville's flood warning system is designed to provide residents with up to a three hour advance warning of flooding within the 100-year floodplain. However, flooding can occur quickly and without much prior warning. You should follow the instructions and warnings as they are given, rather than delaying to see if flooding actually occurs.

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Is your property in a flood hazard area?

Flood hazard areas are defined as any area that has a one percent chance of flooding in any given year (the 100 year flood). Smaller scale floods (50-year and 10-year) have a greater chance of occurring in any year and can also pose a significant flood hazard to people and property close to channels and streams. Also, floods larger than the 100-year event can occur.

First and foremost, you should become informed as to the flood hazard potential for your property. The Roseville Planning Department and Engineering Division will review the best available floodplain information and studies on file to determine the location of your property with respect to the floodplain. The City can also provide site-specific information such as elevation, historical, and property protection alternatives. You may contact the Engineering Division at (916) 746-1300 for assistance with this information.

Any information provided by the City does not constitute an assurance or representation that flooding may or may not occur on your property during any given occurrence, but should assist you as a general matter in determining the need for and cost of insurance and in assessing the extent of flooding potential on your property.

Flood insurance is available through insurance agents in the Roseville area. Contact your insurance agent to determine which policy applies to your needs.

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Steps to Take Today

There are floodproofing improvements that can be done to your structure that may reduce the damage caused by flooding. If you are at risk to flooding you should consider the feasibility of floodproofing your facility like elevating your building or wet floodproofing. For more information, you may contact the Engineering Division at (916) 746-1300.

During an emergency, your personal safety is more important than your most valuable property. Take steps now to help your family prepare for an emergency.

Store these supplies in a safe, accessible location:

  • First aid kit and essential medicine
  • Water and non-perishable food (include baby food and food for special diets)
  • Portable radio, flashlights, extra batteries and non-electric can opener
Practice safe routes from your home with all family members and establish a safe place out of the floodplain to meet if you are separated.

Things you can do to protect your home:
  • Buy flood insurance. You should contact your property/casualty agent or broker about eligibility for flood insurance, which is offered through the National Flood Insurance Program. Generally, there is a 30-day waiting period for this policy to become effective, so don't wait until the last minute to apply.
  • Have sandbags and other house protecting items (plastic sheeting, plywood, portable pumps) at the ready.
  • Store important documents and personal objects where they won't get damaged.
  • Elevate or relocate utilities. Better yet, elevate or relocate your entire home.
  • Install backflow prevention devices in your sewer connections to prevent floodwaters from entering your home.
  • Build and install flood shields for doors and openings to prevent the entrance of floodwater.
  • Install a sump pump with backup power in crawl spaces or basements.
  • Place openings in your foundation walls that will allow the entrance and exit of floodwaters to prevent foundation failure.
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Do you need flood insurance? 

Until the 1960's, flood insurance was practically unavailable to home and business owners. Since private insurance firms were unwilling to assume the financial risk alone, Congress voted in 1968 to create the National Flood Insurance Program (NFIP). This federal program provided flood insurance at a reasonable cost in exchange for the careful management of flood-prone areas by local communities. The standard homeowner’s insurance policy does not cover flood damage. Today, you can insure almost any enclosed building and its contents against flood loss, as long as your community is participating in the NFIP.

Low cost flood insurance is available to Roseville property owners and renters,  because Roseville is a NFIP member and has a floodplain management program. You do not have to live in the floodplain to qualify for flood insurance.

Approximately 30% of all flood insurance claims occur outside of the Special Flood Hazard Area. Property owners can insure their buildings and contents, and renters can insure their possessions. Keep in mind, there is a 30-day waiting period before a flood insurance policy takes effect, so do not get caught applying for flood insurance the day before the storm. For more information, call your local insurance agent or the NFIP at (800) 638-6620.

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Winter storm preparation steps to take today 

There are flood proofing improvements that can be done to your structure that may reduce the damage caused by flooding. If you are at risk to flooding you should consider the feasibility of flood proofing your facility. For more information on the type of improvements that may best fit your situation you can go to the FEMA  website.

During an emergency, your personal safety is more important than your most valuable property. Take steps now to help your family prepare for an emergency.

Store these supplies in a safe, accessible location:

  • First aid kit and essential medicine
  • Water and non-perishable food (include baby food and food for special diets)
  • Portable radio, flashlights, extra batteries and non-electric can opener

Practice safe routes from your home with all family members and establish a safe place out of the floodplain to meet if you are separated.

Persons who live in frequently flooded areas should keep on hand materials such as  sandbags, plywood, plastic sheeting, and lumber which can be used to protect property. Remember, sandbags should not be stacked against the outer walls of a building since, when wet, the bags may create added pressure on the foundation.

Buy flood insurance. You should contact your property/casualty agent or broker about eligibility for flood insurance, which is offered through the National Flood Insurance Program. Generally, there is a 30-day waiting period for this policy to become effective, so don't wait until the last minute to apply.

Keep your insurance policies and a list of personal property in a safe place, such as a safety deposit box. Know the name and location of the agent(s) who issued these policies.

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 During the Storm

The safety of your family is the most important consideration. Since floodwaters can rise very rapidly, you should be prepared to evacuate before the water level reaches your property. During the storm, the following tips may be helpful:

  • Keep a battery-powered radio tuned to a local station and/or tune into Roseville's Government Access Channel (Cable Channel 14/73 or 530 AM radio). Follow emergency instructions as they are given.
  • If you are caught in the house by suddenly rising waters, move to the second floor and, if necessary, to the roof. Take warm clothing, a flashlight and a portable radio with you. Then wait for help. Don't try to swim to safety. Rescue teams will look for you.
  • When outside the house, remember: WATER DEPTHS DURING FLOODS ARE DECEPTIVE. Try to avoid flooded areas, and DO NOT attempt to walk through floodwaters that are more than knee deep.
  • During flood stage, sandbags are provided by the City. Tune into Government Access Channel 14/73 or 530 AM radio for location of sand bag pickup.

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If, and only if, time permits . . . there are several precautionary steps that can be taken: 

  • Turn off all utilities at the main power switch and close the main gas valve if evacuation appears necessary.
  • Move valuable items to upper floors or higher elevations.
  • Fill bathtubs, sinks, and jugs with clean water in case regular supplies are contaminated. You can sanitize these items by first rinsing in bleach.
  • Board up windows or protect them with storm shutters or tape to prevent flying glass.
  • Bring outdoor possessions inside the house or tie them down securely. This includes lawn furniture, garbage cans, tools, and other movable objects that might be swept away or hurled about.
  • Stock the car with blankets, first aid kit, flashlights, dry clothing, and any special medication needed by your family. Park the car in an area safe from rising waters.

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 After the flood

During the aftermath of a flooding event, follow these steps to aid your family's safety:

  • Before entering a building, check for structural damage. Make sure it is not in danger of collapsing. Turn off any outside gas lines at the meter or tank, and let the house air for several minutes to remove foul odors or escaping gas.
  • Avoid downed power lines and broken gas lines. Report them immediately to the electric or gas company, police or fire department.
  • Upon entering the building, DO NOT use an open flame as a light source since gas may be trapped inside. A battery-operated flashlight is ideal.
  • DO NOT handle live electrical equipment in wet areas. If appliances or electrical equipment have been in contact with water, have them checked before use.

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Important things you DO NOT do during a flood

  • DO NOT drive where the water is over the roads. Parts of the road may already be washed out.
  • If your car stalls in a flooded area, DO NOT remain in the car. Abandon it as soon as possible and seek higher ground. Floodwaters can rise rapidly and sweep a car (and its occupants) away. Many deaths have resulted from attempts to move stalled vehicles.
  • Avoid areas subject to sudden flooding. DO NOT try to cross a flowing stream where water is above your knees. You could be swept away by strong currents.
  • DO NOT sightsee in flooded areas and do not make unnecessary trips. Use the telephone only for emergencies or to report dangerous conditions.

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 Winter Storm Pet Care

  • Remember to plan for temporary care of family pets during emergencies. Shelters do not have staff or facilities to care for animals. Frightened pets may be injured or killed during severe storms.
  • To look for pets after the storm, call Roseville animal control, (916) 774-5090, or the SPCA, (916) 782-7722.

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Floodplain Development

The City of Roseville regulates all development that occurs within its floodplains. Buildings within the regulatory floodplain that are cumulatively improved to more than 50% of the market value will be required to be compliant with the City's regulatory flood protection standards. This includes properties that sustain substantial damages. If you are planning improvements in the floodplain, or would like to report activities in the floodplain that appear to be un-permitted, please contact the City of Roseville Engineering Division at (916) 746-1300 or engineering@roseville.ca.us . The City of Roseville recognizes that open space land is limited and that valuable resources must be conserved wherever possible. To preserve the natural and beneficial functions of open space resource areas adjacent to floodplain areas of Roseville, the City has adopted policies under its Open Space Element of the General Plan that include the following:

  • Preserve and rehabilitate continuous riparian corridors and adjacent habitat along the city's creeks and waterways;
  • Require dedication of the 100-year floodplain, or comparable mechanism, to protect habitat and wildlife values in perpetuity;
  • Provide for protection and enhancement of native fishery resources, including continued coordination with the California Department of Fish and Game for the City to release water into Linda Creek.
Because of these policies, a large proportion of floodplains within Roseville are held for open space uses, many in a natural or beneficial state. Approximately 78.5 percent (1,172.3 acres) of the regulatory floodplain within Roseville is designated for open space use as defined in the Open Space Element of the General Plan.

For additional information or questions, please contact the City of Roseville Engineering Division at 311 Vernon Street, (916) 746-1300.

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Public Works - Engineering
Floodplain Management
311 Vernon Street
(916) 746-1300
(916) 746-1339 Fax
(916) 774-5220 TDD
streamlevels@roseville.ca.us

Emergency Phone Numbers
Emergency only: 911 Voice
(800) 735-2929 TDD
Other City of Roseville phone numbers


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