Inspections & Requirements

Fire Protection System Requirements
All fire protection systems must be installed by a company licensed in the State of Texas for the work being performed.

An automatic fire sprinkler system will be required for commercial and residential structures in excess of 6,000 square feet.

All new sprinkler systems must be installed as per the prints and be hydrostatically tested for 2 hours at or above 200 psi with no visible leaks as witnessed by a representative from the Fire Marshal's Office.

All new underground fire protection lines must be installed as per the prints and be hydrostatically tested for 2 hours at or above 200 psi with no visible leaks as witnessed by a representative from the Fire Marshal's Office. All thrust blocks and joints must be exposed during the testing, with the pipe allowed to be center loaded.

A flush of the underground fire protection line must be witnessed by a representative of the Fire Marshal's Office prior to connecting to the above ground sprinkler system. A minimum of 4 inch orifice must be provided for the flush.

The required backflow protection (double check valve) for the sprinkler system can be located on the riser if the riser is within 100 feet of the water main. If the riser is further than 100 feet from the main, the double check valve shall be in a pit. Riser rooms shall be a minimum of 5' x 5' if the double check valve is not located on the riser, or a minimum of 6' x 6' if it is on the riser.

Fire Department sprinkler connections, FDC, are to be a 5" Storz connection with a 30 degree down elbow and a Knox locking cap.

Combination riser.jpg

Fire Department Access
Fire apparatus access needs to be provided within 150 feet of all exterior portions of the perimeter of buildings on a "hose-lay" basis for unsprinkled buildings and within 250 feet of all exterior portions of sprinkled buildings. Fire apparatus access needs to be an all-weather surface, asphalt or concrete, 24 feet wide and able to support the imposed loads of fire apparatus. (A minimum of 80,000 pounds GVW)

Fire lanes require a minimum 30 feet foot inside turn radius and a minimum 54 foot outside turn radius.

Hydrants
Hydrants are required at maximum spacing for R-3 and U Occupancies is 400 feet for subdivisions with un-sprinkled homes and 600 feet for subdivisions that are completely sprinkled.

Hydrants are required at a maximum spacing 300 feet for commercial locations that contain un-sprinkled buildings and a maximum spacing of 500 feet for commercial locations that contain completely sprinkled buildings.

Hydrants are required at intersecting streets and at intermediate locations between, as prescribed above, measured as the hose would be laid.

Fire Department Connections for the sprinkler system or standpipe must be within 100 feet of a fire hydrant.

Knox Lock Boxes
Knox Boxes are to be installed at exterior access doors to the fire protection riser rooms or other identified locations as required by the Fire Marshal.

Knox Boxes are ordered on-line at www.Knoxbox.com and are assigned a unique key core for the City of Southlake Fire Department.

To order a Knox box that has been approved and keyed for the City of Southlake
-select the box you want on the Knox website
-enter the zip code for Southlake, 76092
-find Southlake DPS in the list to see if it has been approved