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Consider the March 7, 2005 Planning Commission minutes. - page 51 / 71

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MARCH 21, 2005SHAWNEE PLANNING COMMISSION MINUTESPAGE 51

As discussed below, a tangent segment must be provided along the centerline of Theden Street from at least the beginning of the curb returns to the centerline of Longview Street.

b.

All internal streets shall comply with the following geometric design standards for a local residential street:

The right-of-way width will be 50 feet.

The radius of the right-of-way at a turnaround will be 50 feet.

The radii of the right-of-way at the intersection of Longview Street and Clear Creek Parkway will be 20 feet to provide a minimum parkway of 10 feet.

The radii of the right-of-way at all other intersections will be 13.5 feet to provide a parkway of 11.5 feet.

The roadway will be designed for a minimum safe speed of 25 mph.

The centerline grades will be a minimum of 1 percent and a maximum of 12 percent.  The maximum centerline grade for a cul-de-sac will be 10 percent.  The maximum centerline grade at all intersections will be 4 percent.

Vertical curves will be designed for a minimum stopping sight distance of 150 feet (K=16.1, crest; K=23.5, sag).

Horizontal curves will be designed with a minimum radius of 175 feet.

A tangent segment having a minimum centerline length of 50 feet will be provided between reverse curves.  A tangent segment will be provided at all street intersections from the beginning of the curb returns to the centerline of the intersecting street.

c.

These internal streets shall also comply with the following roadway design standards for a local residential street:

The roadway will be 27 feet wide measured from back-of-curb to back-of-curb.

The radius of a turnaround will be 38.5 feet measured from center to back-of-curb.

The radii of the curb returns at the intersection of Longview Street and Clear Creek Parkway will be 30 feet.

The radii of the curb returns at all other intersections will be 25 feet.

The asphalt pavement will have a minimum thickness of 8 inches.

Type ‘B’ curbs are required.

The right-of-way behind the curb will be graded to a typical cross-section having a gradient of ¼-inch to ½-inch per foot.

A sidewalk is required on one side of the street, placed one-foot inside the right-of-way, with sidewalk ramps installed to ADA standards at the intersections including at the top of a T-intersection.

d.

The applicant is responsible for submitting preliminary street plan-profile sheets to the City for review and approval prior to preparing the recording copies of the final plat.

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