Chapter 17.12 — DESIGN STANDARDS

17.12.020 - Minimum lot area and width.¶

Minimum lot area and width shall be as set. forth in the following table unless a greater lot size or width is stipulated in this title. Where the lot size is reduced through the use of Section 17.12.310, this table shall serve as the criterion for gross lot density requirements:

Topography of Area**	Min area	Lot Size** Min. Width*	Min. Depth	Grading: Following portion of the ground surface shall remain in its natural state (no cut or fll):**
Flat - 0-10%
Cross Slope	6,000	60′	90′	0%

Hillside - 10-15%
Cross Slope	8,000	80′	120′	15%

Steep Hillside - 15-
25% Cross Slope	10,000	90′	130′	30%

Very Steep Hillside -
25% Cross Slope	20,000	120′	150′	60%

Rugged - Above 35%

150′

200′

Cross Slope

80%

1 acre

*Width at front property line may be reduced by one-third where the frontage abuts the outside of any sharp curve and by one-half on panhandle development where topography exceeds fifteen percent cross slope and not more than one lot is served by the panhandle. "Sharp curve" means a centerline radius of less than one hundred feet.

*Interpolation is permitted

(Ord. 43-62 §3,21, 1963).

17.12.030 - Block length.¶

Blocks shall not be longer than one thousand feet between intersecting street lines nor less than three hundred feet, unless in a cul-de-sac. (Ord. 43-62 §3.22, 1963).

17.12.040 - Improved walkways.¶

Improved walkways not less than ten feet in width may be required through blocks more than nine hundred feet in length and through other blocks where necessary to provide access to schools and parks.

(Ord. 43-62 §3.23, 1963).

17.12.050 - Easements.¶

Easements not less than ten feet wide shall be required at the side of all lots and ten feet wide at the rear of all lots where necessary for public utility facilities and drainage and water mains. Where lots are side-toside or back-to-back, the easement may be split between lots.

(Ord. 43-62 §3.24, 1963),

17.12.060 - Watercourses.¶

Watercourses shall be shown as easements, and storm drains shall be placed in easements. The planning commission or city engineer may require watercourses to be placed entirely in underground conduits or adequately fenced or otherwise improved.

(Ord. 43-62 §3.25, 1963).

17.12.070 - Monuments.¶

Durable metal monuments shall be installed or referenced to the following locations:

A.

At all angle points and points of curvature and at no greater interval than five hundred feet on long tangents of the boundaries of the tract and blocks, by one and one-half inch diameter and a minimum of twenty-four

inches long iron pipes, properly tagged, top eighteen inches underground with two inch by three inch redwood posts property tagged on top;

B.

At all lot corners not falling on the above locations, by a three-quarter inch diameter by twenty-four inch long pipe or larger size, properly tagged, top at finish grade or slightly below grade;

C.

At all intersections and points of tangency in the centerline of streets, by permanent monuments consisting of a six inch diameter by at least thirty inches long concrete cylinder properly tagged, top twelve inches below finish grade and protected by standard cast-iron ring and cover set on concrete collar, top of said ring and cover at center line street grade.

(Ord. 43-62 §3.26, 1963).

17.12.080 - Lots—-Numbered consecutively.

All lots shall be numbered consecutively throughout the subdivision.

(Ord. 43-62 §3.27, 1963).

17.12.090 - Lots—Not to be divided by city boundary line.

No lot shall be divided by a city boundary line.

(Ord. 43-62 §3.28, 1963).

17.12.100 - Streets—Continuance of existing principal streets.

Existing principal streets shall be continued, as required by the planning commission.

(Ord. 43-62 §3.301, 1963).

17.12.110 - Streets—Stubs.¶

Street stubs shall be required to adjacent unsubdivided property where, in the opinion of the planning commission, they are necessary.

(Ord. 43-62 §3.302, 1963).

17.12.120 - Streets—Right-angle intersections.

Streets shall intersect at as near right angles as is practicable. Radius of curvature, where the property lines intersect, shall be a minimum of ten feet.

(Ord. 43-62 §3.303, 1963).

17.12.140 - Reserve strips.

Reserve strips, where required to control access over certain lot lines or over the ends of street stubs, shall be dedicated to the city by indicating them on the map and in dedication certificate.

(Ord. 43-62 §3.305, 1963).

17.12.150 - Alleys.¶

A.

Alleys shall have a minimum width of twenty feet and shall be constructed in commercial, multiple-family areas and where necessary to control vehicular access.

B.

Where two alleys intersect, a triangle corner cut-off of not less than ten feet shall be required.

C.

Where an alley ends in a dead end, an adequate turning area shall be required.

(Ord. 43-62 §3.306, 1963).

17.12.160 - Streets—Cul-de-sac.¶

Cul-de-sac streets shall have the following limiting dimensions:

A.

The maximum length from the center of the intersection to the center of the radius shall be five hundred feet.

B.

The minimum radius to the face of the curb shall be thirty-seven and one-half feet.

C.

The minimum curb-to-curb width of the throat shall be:

1.

Thirty-six feet where the length of the cul-de-sac is two hundred feet or less from the center of the intersection to the center of the radius;

2.

Forty feet where the length of the cul-de-sac is greater than two hundred feet from the center of the intersection to the center of the radius.

(Ord. 369-2004 §1, 2004: Ord. 43-62 §3.307, 1963).

17.12.170 - Street names—Submittal.¶

Names for proposed new streets shall be submitted on the tentative map for approval by city.

(Ord. 43-62 §3.308, 1963).

17.12.180 - Street names—Sign installation.

Standard street name signs shall be installed by the subdivider in locations approved by the planning commission.

(Ord. 43-62 §3.41, 1963).

17.12.190 - Offer of streets, rights-of-way and easements for dedication.

Streets, rights-of-way and easements in any standard subdivision or record of survey subdivision shall be offered for dedication. The city may, at its option, accept or reject any such offer.

(Ord. 43-62 §3.309, 1963).

17.12.200 - Streets—Conformance with master plan.

Streets shall conform, as to alignment and width to any official master plan for streets and highways of the city.

(Ord. 43-62 §3.310, 1963).

17.12.210 - Streets—Curve radius.

Minimum centerline radius on streets shall be as follows:

Major streets, five hundred feet.

Secondary streets, two hundred fifty feet.

Minor streets, seventy-five feet.

(Ord. 43-62 §3.311, 1963).

17.12.220 - Streets—Grades.

Grades shall be as follows:

A.

Maximum permitted shall be fifteen percent.

Minimum permitted shall be 0.3 percent.

C.

Maximum grade permitted on curves with a radius of less than two hundred feet shall not exceed five percent.

(Ord. 43-62 §3.40, 1963).

17.12.230 - Streets—Design to conform to certain standards.¶

Street design shall conform to the engineering standards of the city and to the requirements set in Sections 17.12.240 through 17.21.260.

(Ord. 43-62 §3.50, 1963).

17.12.240 - Streets—Slope easements.¶

Where side slopes of street embankments extend onto private property, slope easements shall be required.

(Ord. 43-62 §3.51(a), 1963).

17.12.250 - Right-of-way width—Alleys in commercial areas.

Minimum right-of-way width for alleys in commercial areas shall be twenty feet with twenty feet paving.

(Ord. 43-62 §3.51(b), 1963).

17.12.260 - Right-of-way width—Curb, gutter and sidewalk easements.

Right-of-way widths and curb, gutter and sidewalk easements shall be as provided below:

A.

Flat Areas. For flat areas, with a cross slope of zero to fifteen percent: