The height limitations stipulated elsewhere in this chapter
may be exceeded, but such modification shall be in accord with the
following:
A. Architectural projections. Architectural projections such as spires,
belfries, parapet walls, cupolas, domes, flues and chimneys are exempt
from the height limitations of this chapter.
B. Special structure height limitations. Special structures such as
elevator penthouses, gas tanks, grain elevators, scenery lofts, radio
and television-receiving antennas mounted on a residence, manufacturing
equipment and necessary mechanical appurtenances, cooling towers,
fire towers, substations and smokestacks are exempt from the height
limitations of this chapter.
C. Essential services height limitations. Essential services, utilities,
water towers, and electric power and communication transmission lines
are subject to conditional use permit as well as all other specific
requirements contained in this chapter.
D. Communications structures height restrictions. Communications structures,
such as radio and television transmission and relay towers, aerial
and observation towers, shall not exceed in height their distance
from the nearest lot line.
E. Agricultural structures height restrictions. Agricultural structures
such as barns, silos and water windmills shall not exceed in height
twice their distance from the nearest lot line.
F. Public facilities height restrictions. Public or semipublic facilities
such as schools, churches, hospitals, monuments, sanitariums, libraries,
governmental offices and stations may be erected to a height of 60
feet, provided all required yards are increased not less than one
foot for each foot the structure exceeds the district's maximum
height requirement.
The yard requirements stipulated elsewhere in this chapter may
be modified as follows:
A. Uncovered stair restrictions. Uncovered stairs, landings and fire
escapes may project into any yard, but not to exceed six feet and
not closer than three feet to any lot line, and must be eight feet
or more above ground.
B. Architectural projection restrictions. Architectural projections
such as chimneys, flues, sills, eaves and ornaments may project into
any required yard (setback requirements), but such projection shall
not exceed two feet.
C. Cul-de-sac and curve restrictions. Residential lot frontage on culs-de-sac
and curves may be less than 80 feet, provided the width at the building
setback line is at least 80 feet and the street frontage is no less
than 45 feet.
D. Essential services exemptions. Essential services, utilities, electric
power and communication transmission lines are exempt from the yard
and distance requirements of this chapter.
E. Street yard restrictions. The required street yards may be decreased
in any residential or business district to the average of the existing
street yards of the abutting structures on each side, but in no case
less than 15 feet in any residential district and five feet in any
business district.
Sirens, whistles and bells which are maintained and utilized
solely to serve a public purpose are exempt from the sound-level standards
of this chapter.