Fire Hydrant Spacing
Residential areas (lots 20,000 sq. ft. and larger)
- Hydrants maximum of 1,000 feet apart as measured along an improved road and shall be within 500 feet of the center of any improved or recorded lot
Residential areas (lots less than 20,000 sq. ft.):
- Hydrants maximum of 750 feet apart as measured along an improved road and a hydrant shall be within 500 feet of the center of any improved or recorded lot
Residential areas (townhouse or multifamily - 3 story or less):
- Hydrants maximum of 500 feet apart as measured along an improved roadway and a hydrant shall be within 300 feet of any dwelling
All other occupancies:
- Hydrants shall be a maximum of 300 feet apart as measured along a fire department access road.
- No portion of the exterior perimeter of any new building or any new addition to an existing building shall be more than 300 feet from a fire hydrant as measured along an approved route. Radial measurements are not acceptable. When any portion of the exterior building perimeter is in excess of 300 feet from a public hydrant, on-site fire mains capable of supplying the required fire flow shall be provided and a sufficient number of hydrants shall be provided such that no portion of the exterior perimeter of the building is more than 300 feet from a hydrant.
Hydrants shall be located at street intersections whenever possible.
- Hydrants not located at intersections shall be located in relation to property lines in order to avoid interference with future driveways
- Hydrants shall be located to provide vehicular clearance from the street
- Hydrant spacing is to be measured linearly along an improved roadway or fire lane; radial measurements are not appropriate
- Hydrants shall be located within 8 feet of the finished curbing on the end of the pave surface
- Hydrants shall be located not less than 40 feet from buildings.
Reference: NFPA 1: 18.5, 2012 edition, as amended AACo. Code.