Table 51-186: Required Dimensions for Driveways and Interior
Roads
| |||
---|---|---|---|
Driveway Width
| |||
One-Way Operation
(feet)
|
Two-Way Operation
(feet)
| ||
1- to 10-family dwelling
|
Maximum 10
|
Maximum 10
| |
Over 10-family multiple dwelling
|
Maximum 10
|
Maximum 20
| |
Commercial or industrial
|
10 to 24
|
26 to 40
| |
Gasoline station
|
18 to 25
|
25 to 35
|
Species
|
Height
(feet)
| |
---|---|---|
Street trees
| ||
Red maple — Acer rubrum (Armstrong) or (October Glory)
or (Red Sunset)
|
50+
| |
Sweetgum — Liquidambar styraciflua (Rotundiloba)
|
40+
| |
Green ash — Fraxinus pennsylvanica (Marshall's Seedless)
or (Urbanite® Seedless)
|
70
| |
Japanese zelkova — Zelkova serrata (Village Green) (Green
Vase)
|
50 to 60
| |
Redspire pear — Pyrus calleryana (Redspire)
|
25 to 30
| |
Sugar maple — Acer saccharum (Goldspire)
|
35 to 40
| |
Crimson king norway maple — Acer plantanoides (Crimson
King)
|
30 to 40
| |
Green pillar pin oak
|
50 to 60
| |
Bloodgood london plane tree
|
70
| |
Fastigiate golden rain tree
|
35
| |
Redmond linden
|
65 to 75
| |
Trees on private property
| ||
Katsura tree — Cercidiphyllum japonicum
|
50
| |
Chinese fringetree — Chionanthus retusus
|
25
| |
Fringetree — Chionanthus virginicus
|
20
| |
Yellowwood — Cladrastis lutea
|
40
| |
Washington hawthorne — Crataegous phenopyrum
|
25
| |
Silverbell — Halesia carolina
|
30
| |
Sourwood — Oxydendrum arboreum
|
30
| |
Hedge maple — Acer campestre
|
25
| |
Kousa dogwood — Comus kousa and Comus kousa (Milky Way)
and Comus kousa (Summer Stars)
|
25
| |
Schumard oak — Quercus imbricaria
|
60
| |
Sawtooth oak — Quercus acutissima
|
50
| |
Northern red oak — Quercus rubra (Borealis)
|
75 to 95
|
Percentage of Trees Removed from Project Area Permitted
for Development
|
Percentage of Removed Trees to be Replaced
(using trees with a minimum three-inch caliper)
| |
---|---|---|
80% to 100%
|
80%
| |
60% to 79%
|
60%
| |
40% to 59%
|
40%
| |
20% to 39%
|
20%
|
Square Footage Size of Lot Permitted for Development
(square feet)
|
Minimum Number of New Trees Planted
(minimum three-inch caliper)
| |
---|---|---|
2,000 to 9,000
|
4
| |
9,001 to 20,000
|
8
| |
20,001 to 60,000
|
12
| |
60,001 to 100,000
|
12
| |
100,001 or larger
|
20
|