The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance.

When adopted, this appendix is to be used in place of Table 502.1 to determine the fire hazard severity.
A.Subdivision Design PointsC.Topography
1. Ingress/Egress8% or less1___
Two or more primary roads1___More than 8%, but less than 20%4___
One road3___20% or more, but less than 30%7___
One-way road in, one-way road out5___30% or more10___
2. Width of Primary RoadD.Roofing Material
20 feet or more1___Class A Fire Rated1___
Less than 20 feet3___Class B Fire Rated5___
Class C Fire Rated10___
3. AccessibilityNonrated20___
Road grade 5% or less1___
Road grade more than 5%3___E.Fire Protection—Water Source
500 GPM hydrant within 1,000 feet1___
4. Secondary Road TerminusHydrant farther than 1,000 feet or draft site2___
Loop roads, cul-de-sacs with an outside
turning radius of 45 feet or greater
1___Water source 20 min. or less, round trip5___
Cul-de-sac turnaroundWater source farther than 20 min., and
45 min. or less, round trip
Dead-end roads 200 feet or less in length3___Water source farther than 45 min., round trip10___
Dead-end roads greater than 200 feet in length5___
F.Existing Building Construction Materials
5. Street SignsNoncombustible siding/deck1___
Present1___Noncombustible siding/combustible deck5___
Not present3___Combustible siding and deck10___
B.Vegetation (IWUIC Definitions)G.Utilities (gas and/or electric)
1. Fuel TypesAll underground utilities1___
Light1___One underground, one aboveground3___
Medium5___All aboveground5___
Total for Subdivision
2. Defensible SpaceModerate Hazard40–59
70% or more of site1___High Hazard60–74
30% or more, but less than 70% of site10___Extreme Hazard75+
Less than 30% of site20___
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