Minimum Standards for Corner Clearance
| ||||
---|---|---|---|---|
Minimum Corner Clearance
| ||||
Access Type
|
Intersection Signalized
(feet)
|
Intersection Unsignalized
(feet)
| ||
Low-volume
|
150
|
50
| ||
Medium-volume
|
150
|
50
| ||
High-volume
|
500
|
250
| ||
Special case
| ||||
Right turn in only
|
50
|
50
| ||
Right turn out only
|
100
|
50
| ||
Right turn in or out only
|
100
|
50
|
Minimum Access Spacing
| |||||
---|---|---|---|---|---|
Access Type
|
Minimum Spacing to Property Line1
(feet)
|
Minimum Spacing to Adjacent
Access3 by Access Type2
| |||
Medium
(feet)
|
High w/o RT4
(feet)
|
High w/RT5
(feet)
|
Special Case
(feet)
| ||
Low- volume
|
5
| ||||
Medium- volume
|
10
|
75
| |||
High- volume
(w/o RT)4
|
75
|
75
|
150
| ||
High- volume
(w/ RT)5
|
75
|
75
|
250
|
500
| |
Special case
|
10
|
75
|
75
|
75
|
406
|
NOTES:
| |
---|---|
1
|
Minimum spacing to property line measured from
point of tangency of access to projection of property line on roadway
edge.
|
2
|
For two more accesses serving a single parcel,
or from a proposed access from an existing access.
|
3
|
Minimum spacing to property line measured from
point of tangency of access to point of tangency of adjacent access.
|
4
|
High-volume access without right turn channelization.
|
5
|
High-volume access with right turn channelization.
|
6
|
Right-turn-in-only upstream of right-turn-out-only.
Right-turn-out followed by right-turn-in not allowed.
|
"All roads in this subdivision shall remain
private roads to be maintained by the developer or the lot owners
and shall not be accepted or maintained by the Town, until they meet
the municipal street design and construction standards."
|
Type of Street
| |||||
---|---|---|---|---|---|
Description
|
Arterial
|
Collector
|
Minor or Private Right-of-Way
|
Industrial/
Commercial
| |
Minimum right-of-way width (feet)
|
80
|
50
|
50
|
60
| |
Minimum traveled way width (feet)
|
44
|
24
|
20
|
30
| |
Minimum width of shoulders (each side) (feet)
|
5
|
3
|
3
|
9
| |
Sidewalk width (feet)
|
8
|
5
|
5
|
8
| |
Minimum grade
|
.5%
|
.5%
|
.5%
|
.5%
| |
Maximum grade1
|
5%
|
6%
|
8%
|
5%
| |
Minimum center-line radius
| |||||
Without super-elevation (feet)
|
500
|
280
|
280
|
400
| |
With super-elevation (feet)
|
350
|
175
|
175
|
300
| |
Roadway crown2(inches
per foot)
|
1/4
|
1/4
|
1/4
|
1/4
| |
Minimum angle of street intersections4
|
90°
|
90°
|
75°
|
90°
| |
Maximum grade within 75 feet of intersection
|
3%
|
3%
|
3%
|
3%
| |
Minimum curb radii at intersections (feet)
|
30
|
25
|
20
|
305
| |
Minimum right-of-way radii at intersections
(feet)
|
20
|
10
|
10
|
20
|
NOTES:
| |
---|---|
1
|
Maximum grade may be exceeded for a length of
100 feet or less.
|
2
|
Roadway crown is per foot of lane width.
|
3
|
Gravel surfaces shall have a minimum crown of
3/4 inch per foot of lane width.
|
4
|
Street intersection angles shall be as close
to 90° as feasible but no less than the listed angle.
|
5
|
Should be based on turning radii of expected
commercial vehicles, but no less than 30 feet.
|
Design Speed
(mph)
|
20
|
25
|
30
|
35
| |
Stopping Sight Distance
(feet)
|
125
|
150
|
200
|
250
|
Posted Speed Limit
(mph)
|
25
|
30
|
35
|
40
|
45
|
50
|
55
| |
---|---|---|---|---|---|---|---|---|
Sight Distance
(feet)
|
250
|
300
|
350
|
400
|
450
|
500
|
550
|
Street Materials
|
Minimum Requirements (inches)
| |||||
---|---|---|---|---|---|---|
Arterial
|
Collector
|
Minor
|
Private Right- of-Way
|
Industrial/
Commercial
| ||
Aggregate subbase course (max. sized stone 6")
| ||||||
Without base gravel
|
24
|
18
|
18
|
18
|
24
| |
With base gravel
|
20
|
15
|
15
|
15
|
20
| |
Crushed aggregate base course (if necessary)
|
4
|
3
|
3
|
3
|
4
| |
Hot bituminous pavement
| ||||||
Total thickness
|
3
|
3
|
3
|
N/A
|
4
| |
Surface course
|
1 1/4
|
1 1/4
|
1 1/4
|
N/A
|
1 1/4
| |
Base course
|
1 3/4
|
1 3/4
|
1 3/4
|
N/A
|
2 3/4
| |
Surface gravel
|
N/A
|
N/A
|
N/A
|
3
|
N/A
|
Sieve Designation
|
Percentage by Weight Passing Square Mesh
Sieves
| |
---|---|---|
1/4 inch
|
25-70%
| |
No. 40
|
0-30%
| |
No. 200
|
0-7%
|
Sieve Designation
|
Percentage by Weight Passing Square Mesh
Sieves
| |
---|---|---|
1/2 inch
|
45-70%
| |
1/4 inch
|
30-55%
| |
No. 40
|
0-20%
| |
No. 200
|
0-5%
|
Sieve Designation
|
Percentage by Weight Passing Square Mesh
Sieves
| |
---|---|---|
2 inch
|
95-100%
| |
1/2 inch
|
30-65%
| |
No. 200
|
7-12%
|
Material
| |||
---|---|---|---|
Inside Diameter
(inches)
|
Galvanized CMP Aluminum/Zinc Coated CMP
Corrugated Aluminum Alloy
|
Aluminum Coated CMP Polymer Coated CMP
| |
15 to 24
|
14 ga.
|
16 ga.
| |
30 to 36
|
12 ga.
|
14 ga.
| |
42 to 54
|
10 ga.
|
12 ga.
| |
60 to 72
|
8 ga.
|
10 ga.
|
Lake Watershed:
|
Estes Lake, Lower Basin; Shaker Pond;
Round Pond
| ||||
---|---|---|---|---|---|
Phosphorus Standard:
|
0.03 - 0.04 pounds/acre
| ||||
Lot Size
(acres)
|
Hydrologic
Soil Group
|
Buffer Width (ft) per lot
| |||
Clearing Restricted to 12,500
Square Feet
|
No Clearing Restrictions
| ||||
Less than l
|
A
|
130
|
145
| ||
B
|
225
|
250
| |||
C
|
NA
|
NA
| |||
D
|
NA
|
NA
| |||
1-1.99
|
A
|
75
|
85
| ||
B
|
130
|
145
| |||
C
|
NA
|
NA
| |||
D
|
NA
|
NA
| |||
2-2.99
|
A
|
35
|
50
| ||
B
|
100
|
125
| |||
C
|
175
|
NA
| |||
D
|
NA
|
NA
| |||
3-3.99
|
A
|
25
|
25
| ||
B
|
35
|
100
| |||
C
|
75
|
220
| |||
D
|
250
|
NA
| |||
4-4.99
|
A
|
25
|
25
| ||
B
|
25
|
75
| |||
C
|
25
|
125
| |||
D
|
25
|
NA
| |||
5-5.99
|
A
|
25
|
25
| ||
B
|
25
|
25
| |||
C
|
25
|
75
| |||
D
|
25
|
250
| |||
6-6.99
|
A
|
25
|
25
| ||
B
|
25
|
25
| |||
C
|
25
|
25
| |||
D
|
25
|
125
| |||
All lots seven acres and larger shall keep a
minimum twenty-five-foot buffer.
|
Lake Watershed:
|
Estes Lake, Upper Basin; Middle Branch
Pond
| ||||
---|---|---|---|---|---|
Phosphorus Standard:
|
0.05 - 0.06 pounds/acre
| ||||
Lot Size
(acres)
|
Hydrologic
Soil Group
|
Buffer Width (ft) per lot
| |||
Clearing Restricted to 12,500
Square Feet
|
No Clearing Restrictions
| ||||
Less than 1
|
A
|
100
|
110
| ||
B
|
150
|
200
| |||
C
|
NA
|
NA
| |||
D
|
NA
|
NA
| |||
1-1.99
|
A
|
30
|
45
| ||
B
|
90
|
125
| |||
C
|
150
|
NA
| |||
D
|
NA
|
NA
| |||
2-2.99
|
A
|
25
|
25
| ||
B
|
25
|
80
| |||
C
|
25
|
150
| |||
D
|
125
|
NA
| |||
3-3.99
|
A
|
25
|
25
| ||
B
|
25
|
25
| |||
C
|
25
|
60
| |||
D
|
25
|
225
| |||
4-4.99
|
A
|
25
|
25
| ||
B
|
25
|
25
| |||
C
|
25
|
25
| |||
D
|
25
|
45
| |||
All lots five acres and larger shall keep a
minimum twenty-five-foot buffer.
|