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16.24.020 Design standards specified.
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The design of the preliminary and final plats of the subdivision in relation to streets, blocks, lots, open spaces and other design factors shall be in harmony with design standards recommended by the Planning Commission, the highway department and other departments and agencies of city government. Design standards shall be approved by the City Council and shall include provisions as follows:

A. Blocks shall not exceed one thousand feet in length;

B. Blocks shall be wide enough to adequately accommodate two tiers of lots;

C. Dedicated easements for non-motorized trails throughout a development are required to provide access to existing trails and future trails indicated on the Grand County non-motorized master trails plan as adopted by council.

1. Specific trail alignments shall be negotiated and as individual properties develop, proposed trail routes shown in the plan may be reconfigured to the proposed or greater level of connectivity to adjacent properties.

2. Such easements shall be a minimum of ten feet in width, but may be required to be wider for slopes in areas requiring fill as determined necessary by the Planning Commission with the recommendation of the City Engineer.

3. The subdivider shall provide, at a minimum, a compacted road base surface of four inches in thickness and spanning the full width of the trail in accordance with the design standards for trails as established by the community development director.

4. The finish surface material shall include but not be limited to asphalt concrete, pavers, or cobbles as recommended by the community development director and approved by council.

5. Design and construction shall be approved, in writing, by the community development director, public works director, and the City Engineer.

6. Appropriate barriers shall be installed at each walkway entrance to prevent the use of the walkway by any motor vehicle or by any non-motorized vehicle wider than three feet;

D. Side lines of lots shall be approximately at right angles, or radial to the street lines. However, if energy design conditions dictate otherwise, the Planning Commission may permit exemptions;

E. All remnants of lots below minimum size must be added to adjacent lots, rather than allowed to remain as unusable parcels;

F. Minimum street widths shall be as follows:

1. Arterial streets shall be eighty feet wide; sixty-six feet curb to curb;

2. Secondary streets shall be sixty feet wide; forty feet curb to curb;

3. Minor streets shall be fifty feet wide; thirty feet curb to curb;

G. Dead end streets shall not exceed four hundred feet in length and must have a cul-de-sac with a minimum radius of fifty feet and a diameter of eighty feet curb to curb;

H. The subdivider shall install the following improvements in all streets within the subdivision in accordance with the construction design standards as established by the public works director and the City Engineer:

1. Street grading and surfacing;

2. Curbs and gutters;

3. Street lighting;

4. Drive approaches;

5. Fire hydrants;

6. Sidewalks.

All sidewalks shall be constructed with the widths indicated in the table below along both sides of public streets in accordance with the City construction standards for public works projects. Other standards exist for sidewalks and trails in specific types of developments as found elsewhere in this code and in the construction standards.

Zoning District

Minimum Width*

R-1, R-2, R-3, R-4

5 feet (wider if schools present)

C-1, C-2, C-5

9 feet

C-3

9 feet

C-4

6 feet

I

6 feet

MH/RV-1

5 feet

A-2

N/A

RA-1

5 feet

Resort Commercial (RC)**

Refer to Chapter 17.31.

Sensitive Area Resort Zone (SAR)**

Refer to Chapter 17.32.

Master Planned Developments**

Refer to Chapter 17.65.

Planned Unit Developments**

Refer to Chapter 17.66.

*The minimum width of any sidewalk shall be approved by the public works director.

**Upon the recommendation by the Planning Commission and the discretionary approval by council, sidewalks may be eliminated if a comprehensive trail plan providing access to and from all structures and adjacent properties is proposed.

(Ord. 13-10, 2013: Ord. 13-81 (part), 1981: prior code § 22-6-2)