Table 1
Design Standards for Streets
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---|---|---|---|---|---|
Width
(feet)
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Type of Street
|
Right-of-Way
|
Pavement
|
Minimum Center-line Radii for Horizontal Curves
(feet)1
|
Maximum Grades2
|
Minimum Sight Distances
(feet)3
|
Major traffic streets
|
66
|
40
|
500
|
5%
|
400
|
Collector streets
|
60
|
40
|
300
|
7%
|
200
|
Minor streets
|
50
|
28
|
100
|
10%
|
100
|
Marginal access streets
|
50
|
28
|
100
|
10%
|
100
|
Alleys (for commercial uses only)
|
30
|
22
|
—
|
—
|
—
|
NOTES:
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---|
1Whenever street lines are deflected
in excess of 5°, connection shall be made by horizontal curves. Except
on minor streets, a tangent shall be required between curves.
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2To provide for adequate drainage,
the minimum grade shall be not less than 0.5%.
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3Vertical curves shall be used
at changes of grade exceeding 1% and shall be designed in relation to the
extent of the grade change and to provide the minimum sight distances listed
above.
|
Table 2 Lot Standards for Residential Subdivisions
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---|---|---|---|
Lot Area and Dimensions
|
Lots Served By Both Central Water and Central Sewer
System
|
Lots Not Served By Central Sewer System
|
R1 and R2 Districts
|
Minimum area (square feet)
|
6,500
|
10,000
|
10,000
|
Minimum width (feet)
|
65
|
80
|
—
|
Minimum depth (feet)
|
100
|
100
|
—
|
Minimum front yard (feet)
|
25
|
25
|
—
|
Minimum side yard (feet)
|
6
|
10
|
15 feet aggregate
|
Minimum rear yard (feet)
|
30
|
30
|
—
|