November 24, 2017

Division Two - Standards for Water Systems - Chapter V. Fire Protection Requirements

Chapter V. Fire Protection Requirements

Sec. 205-1 Fire Hydrants

Fire hydrants shall conform with AWWA Specification NO. C-502 or C-503 2-1/2" and 4” national standard threaded connections as required. Hydrant shall be painted rust inhibiting aluminum silver (Rust-Oleum aluminum silver #7715 or equivalent.) For details see Fire Hydrant Detail Standard Drawing, Plate W-1.

Sec. 205-2 Bury

Bury for hydrants shall conform to AWWA standard specifications C-502 or C-503, height to be sufficient to ensure 30" minimum cover. Bury to be coated with coal tar enamel or coal tar epoxy.

Sec. 205-3 Water Supplies for Fire Protection

205-3.01 The fire flow requirements shall be determined by the Fire Chief and shall be computed on the basis of a minimum 20 PSIG residual operating pressure at the point of lowest pressure of the street main from which the flow is measured. In setting the requirements for fire flow, the Fire Chief may be guided by the minimum requirements set forth in Table 1-W, but may require higher standards on the basis of local conditions, exposure, congestion, other regulations, or construction of the buildings. The required fire flows are to be provided in addition to the residential requirements required in Section 202-3.118

District Classification Minimum Fire Flow
(in GPM)
Minimum Duration
(In Hours)
Maximum Hydrant Spacing
Residential
Includes: 1 and 2 family dwellings
500 1 660'
Commercial
Includes: all commercial uses, hotels,
apartments, multiple residence buildings, schools, and colleges
1,500 2 330'
Industrial 1,500 4 330'


205-3.02
The water distribution system shall be provided with valves and other facilities, such as tanks, so that no point on any lot at the street rightof-way shall be more than one and one-half (1-1/2) times the maximum hydrant spacing from a working hydrant as a result of any single break or shutdown for repairs, except where impractical.

205-3.03 All water mains serving hydrants shall have a minimum nominal diameter of six inches (6"). Stub lines over 800 feet in length or supporting more than one hydrant shall have a minimum nominal diameter of eight inches (8").

205-3.04 The location, number and type of fire hydrants connected to a water supply capable of delivering the required fire flow shall be as required and approved by the Fire Chief.

205-3.05 Fire Hydrants shall be installed with a maximum spacing between hydrants as indicated in Table No. 1-W. A hydrant shall be placed at each intersection except where this would provide excessive hydrant coverage.

Exception: The spacing of hydrants shall have an individual tolerance of 10 percent. However, the average spacing between any three (3) adjacent hydrants shall not exceed the required spacing.

205-3.06 Fire hydrant spacing shall be computed separately for each side of major highways, divided roadways, canals, or railways.

205-3.07 The last hydrant on a cul-de-sac or stub street shall not be more than one-half the maximum spacing from the end of the street.119

205-3.08 Whenever any hydrant or other valve, which is intended for use by the Fire Chief for fire suppression purposes, is installed or replaced, the same shall be installed or replaced in accordance with Plate W-1, "Fire Hydrant Detail."

205-3.09 "Dry Barrel" type fire hydrants shall be provided at all elevations above 2,500 feet, or where freezing conditions occur.

Sec. 205-4 Fire Checks

Any connection between a building's fire sprinkler system and the water purveyor's main line shall be protected from backflow in accordance with the Fire Department, Environmental Health Services Department Standards and the water purveyors requirements.

Sec. 205-5 Fire Hydrant Barricades

Barricades shall be installed where considered necessary by the Fire Chief to protect fire hydrants. Fire hydrant barricades shall not obstruct the outlets and shall consist of 4" diameter standard steel pipe filled with concrete, extending 3' above and 3' below ground and imbedded in concrete 15” (inches) in diameter and 4’ (ft.) deep. All steel pipe above ground shall be painted with a minimum of two (2) coats of primer paint and a finish coat of John Deere Yellow Paint. Fire hydrant barricades shall be installed in accordance with Plate W-6 “Guard Post Installation” at locations specified by the Fire Chief.

Sec. 205-6 Location Markers for Fire Hydrants

Blue raised retroreflective pavement markers shall be placed on a highway, street, or road to mark fire hydrant locations. They shall not be used for any other purpose.

In general, the blue raised retroreflective pavement markers:

  1. Should be placed 0.5 foot from the centerline stripe, or approximate center of the pavement where there is no centerline stripe, on the side nearest the fire hydrant.
  2. When placed on expressways, freeways and freeway ramps, they should be placed on the shoulder, 1.0 foot to the right of the edge line, opposite the fire hydrant. Typical marker locations are shown on Figure 3B-102((CA)CMUTCD).
  3. In areas at elevations above 2,500 feet and where snow plows are used shall be recessed, as shown in the Caltrans Department of Transportation’s Standard Plan A20-D.

Because fire hydrants adjacent to freeways may be out of the right-of-way and, in many locations, out of view from the freeway, the Fire Department may require installation of small supplemental signs (S9(CA) and S10(CA) CMUTCD) or markings to indentify the 120 hydrant number or distance to the hydrant. These installations are optional and at the discretion of the Fire Department and Caltrans.

Location

Public Services Building
2700 M Street, Suite 570
Bakersfield, CA 93301-2370
map 

Phone: 661-862-5100 
FAX: 661-862-5101 
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