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RECEIVED
MAY 21 2018
CITY OF TIGARD
BUILDING DIVISION
Fire Marshal's Division Offices
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North - 14480 SW Jenkins Rd., Beaverton, OR 97005, (503) 3564700
Tualatin Valley South - 7401 SW Wash Ct., Tualatin, OR 97062, (503) 612-7010
Fire & Rescue
Fire Flow and Hydrant Worksheet
This worksheet is required to be submitted to and approved by the Authority Having Jurisdiction
(AHJ) before any permits for new building construction, building expansion or fire hydrants will be
issued by any building department within the TVF&R District
Preparer Information I
Preparer Name: Karl Koroch, PE
Phone: 503 443 3900 Fax: 503 443 3700
Architect/Engineer of Record: TM Rippey Consulting Engineers
Phone: As above Fax:
General Building Information I
Project Name: Jaguar Land Rover
Project Address: Greenburg at Washington Square Drive
City: Tigard County: Washington Zip:
Construction Type(s): Type IIB and IIIB
Total Bldg Area: 148,271 sqft
Total Fire Area: 148,271 sqft
Bldg Fire Flow: 8000 Gallons Per Minute(Light Hazard)
Describe Fire Area:(if more than one fire area,include an 8 1/2 x 11 or 11 x 17 drawing indicating the various fire areas)
Building is retail automobile sales and service. Building has two levels of rooftop vehicle storage.
Type of Occupancy or Use of Building: B/F1/S1
A. Occupancy Hazard
Al Determine percent of each occupancy hazard in the fire area.
Occupancy Hazard Class Fire Area Total Fire Area Percent of Fire Area
Light Hazard 13057 SF / 148,271 SF x 100 = 8.81 %
Ordinary Hazard Grp 1 111673 SF / 148,271 SF x 100 = 75.32
Ordinary Hazard Grp 2 23541 SF / 148,271 SF x 100 = 15.88 %
Extra Hazard Grp 1 0 SF / 1 SF x 100 = 0 %
Extra Hazard Grp 2 0 SF / 1 SF x 100 = 0
Total Must equal 100% 100.01
A2 Calculate Fire Flow
Occupancy Hazard Class Factor Fire Area Fire Flow Bldg Fire Flow
Light Hazard 1.0 x 8.81 % x 8000 GPM = 705 GPM
Ordinary Hazard Grp 1 1.2 x 75.32 % x 8000 GPM = 7231 GPM
Ordinary Hazard Grp 2 1.3 x 15.88 % x 8000 GPM = 1652 GPM
Extra Hazard Grp 1 1.4 x 0 % x 8000 GPM = 0 GPM
Extra Hazard Grp 2 1.5 x 0 % x 8000 GPM = 0 GPM
A3 Required Fire Flow 9588 GPM
B. Minimum Number of Fire Hydrants Required
Required Fire Flow 9588 = 8 No. of Hydrants Required
C. Reduction of Fire Flow- Reductions are based on the following:
Cl - Reduced by 25% for all Group R Occupancies without fire sprinklers (multiply by .75)
C2 - Reduced by 25%for a NFPA 72 Fire Alarm System (multiply by.75)
C3- Reduced by 75%for NFPA 13 Automatic Sprinklers (multiply by.25)
D. Required Fire Flow
D1 - Group R occupancy No x 1 = 9588 GPM(Max.3000-Min. 1500 gpm)
D2 - Fire Flow 9588 GPM x 0.25 = 2397 GPM(Max.3000-Min. 1500 gpm)
E. Available Fire Flow to the Building Test Results: 6,471 GPM
Fire flow test results based on test performed on February 1, 2018, attached.