§ 11.1-4. Local criteria.

As provided for by the USBC, the following standards are established by the City of Norfolk to address those climatic and geographic conditions unique thereto:

11.1-4.1. Wind load.

All exposed structures or parts of structures shall be designed to resist the pressures due to wind in any direction, as set forth in applicable sections of the USBC, based on a minimum sustained (1-minute measured wind) wind speed of 100 MPH.

11.1-4.2. Climatic and geographic design criteria.

Design criteria for the City of Norfolk is established as follows:

Climatic and Geographic Design Criteria
Roof Live Load 1 (lbs. per sq. ft.)	Roof Snow Load 1 (lbs. per sq. ft.)	Wind Velocity (base wind speed)	Seismic Condition by Zone	Weathering	Subject to Damage from:
					Frost Line Depth	Termite	Decay
20	10	100 MPH	Zone 1	Yes 2	Yes 3	Yes	Yes
1 Roof live load and snow load are addictive.
2 Two thousand five hundred (2,500) pound compressive strength concrete required grade.
3 Minimum footing depth twelve (12) inches below finished grade.

 

11.1-4.3. Base flood level.

The base flood level (100-year flood level), shall be as established by the zoning ordinance of the City of Norfolk.

11.1-4.4. Public systems available.

A public water supply system or public sewer system shall be deemed available to premises used for human occupancy if such premises are within twenty-five (25) feet (measured along a street, alley, or easement) of the public water supply system or public sewer system, and a connection conforming with the standards set forth in the USBC can be made thereto.

11.1-4.5. Freezing.

Water service piping and sewers shall be installed below recorded frost penetration but not less than eighteen (18) inches below grade for water piping and twelve (12) inches below grade for sewers.

(Ord. No. 36,932, § 2, 7-28-92)

(Ord. No. 36,932, § 2, 7-28-92)