American Canyon Municipal Code Ch. 18.40 Design Standards

(A) The streets and highways to be provided or improved, within or adjacent to any proposed division of land, shall conform both in width and alignment to the master plan of streets and highways in the circulation element of the general plan or any other specific plans as adopted by the city council. Rights-of-way for any such street or highway indicated on said general plan shall be dedicated for public use.

(B) New streets and highways not shown in the general plan shall not be of less width than the standards set forth in the circulation element for similar streets and highways to accommodate future traffic volumes unless approved by the city council upon the positive recommendation of the city engineer.

(C) Increased widths may be required where probable traffic conditions warrant such. Approval of determination of street or highway classification shall be made by the city council.

Ord. 98-10 § 1, 1998

All streets shall, as far as practicable, be in alignment with

existing adjacent streets by continuations of the center lines thereof or by adjustments by curves and shall be in general conformity with the adopted general plan for the most advantageous development of the area in which the subdivision lies.

Ord. 98-10 § 1, 1998

Streets shall be required to intersect one another at an angle as near to a right angle

as is practicable.

Ord. 98-10 § 1, 1998

Where necessary to give access to, or permit a satisfactory future subdivision of

adjoining land, streets shall extend to the boundary of the property and the resulting dead-end streets shall have a temporary turn-around. Control of access across such dead-end street shall be vested in the city by dedication of a one-foot nonaccess strip across the entire right-of-way width. In all other cases, a turn-around having a minimum radius of forty-five feet shall be required.

Ord. 98-10 § 1, 1998

Whenever an arterial street or state highway intersects any other

street or highway, the property lines at each block corner shall be rounded with a curve having a radius of not less than thirty feet. On all other street intersections, the property line at each block corner shall be rounded with a curve having a radius of not less than twenty feet. In either case, a greater. curve radius may be required if streets intersect other than at right angles.

Ord. 98-10 § 1, 1998

The center line curve radius on all streets and highways shall conform to accepted

engineering standards of design and shall be subject to approval by the city engineer.

Ord. 98-10 § 1, 1998

No street or highway shall have a grade of more than ten

percent unless because of topographical conditions or other exceptional conditions, the city engineer determines that a grade in excess thereof is necessary. The minimum grade shall be one-half percent. Any grade in excess of ten percent shall be reviewed by the American Canyon fire protection district and approved by city council upon the positive recommendation of the city engineer.

Ord. 98-10 § 1, 1998

Reserve strips controlling the access to public ways or minimizing values for

special improvement assessments will not be approved unless such strips are necessary for the protection of the public welfare or of substantial property rights, or both, and in no case unless the control and disposal of the land comprising such strips is placed definitely within the jurisdiction of the city under conditions approved by the city council.

When the rear of any lots border any arterial, collector street, or

highway, the subdivider may be required to execute and deliver to the city the right of ingress and egress to the rear of such lots across the side lines of such streets or highways. When the rear of any lots border a state highway, the subdivider may be required to dedicate and improve a planting strip and masonry wall adjacent to such freeway.

Ord. 98-10 § 1, 1998

Where a parcel is subdivided into lots of one acre or more, the

city council may require that the blocks shall be of such size and shape, and be so divided into lots, as to provide for the extension and opening of streets and alleys at such intervals that will not preclude a subsequent division of any parcel into lots.

Ord. 98-10 § 1, 1998

Prior to the approval of any tentative subdivision map or tentative parcel map, the

American Canyon chief of police and the American Canyon fire protection district fire chief shall approve all street names.

Ord. 98-10 § 1, 1998

Unless otherwise approved by the city council upon the positive

recommendation of the city engineer, the subdivider shall grant easements not less than five feet in width for public utilities, including but not limited to sanitary sewer, water, communications, and energy where and when as may be necessary. Such easements may be located along each lot line, parallel to the front property line or the back of sidewalk, in planting strips, in common areas of a subdivision, or within the street rights-of-way.

Dedication of easements shall be to the city for the purposes as may be ordered or directed by the city council upon the positive recommendation of the city engineer.

Ord. 98-10 § 1, 1998

Unless otherwise approved by the city council upon the positive

recommendation of the city engineer, the subdivider shall grant storm drain easements of not less than twenty feet in width where and as may be necessary. Dedication of easements shall be to the city for the purposes as may be ordered or directed by the city council upon the positive recommendation of the city engineer.

Ord. 98-10 § 1, 1998

The side lines of all lots, so far as possible, shall be at right angles to the street which

the lot faces, or radial or approximately radial if the street is curved.

Ord. 98-10 § 1, 1998

No new lot created subsequent to the effective date of the ordinance codified in this

title shall be divided by a city boundary line.

Ord. 98-10 § 1, 1998

The subdivider may be required to dedicate and improve trails and

walkways at least ten feet wide across long blocks or to provide access to schools, parks, open spaces or other public areas, and where such trails or walkways are shown on any map or diagram in the general plan and any of its elements or on any specific plan of the city of American Canyon.

Ord. 98-10 § 1, 1998

Unless otherwise approved by the city engineer, the subdivider shall dedicate an

easement for storm drainage purposes conforming substantially with the lines of any natural watercourse or channel, stream, or creek within or contiguous with any subdivision, or at the option of the subdivider provide by dedication further and sufficient easements or construction, or both, to dispose of such surface and storm water.

Ord. 98-10 § 1, 1998

If any portion of any land within the boundaries shown on any

subdivision map is subject to overflow, inundation, or flood hazard by storm waters, such fact and said portion shall be clearly shown on such final map enclosed in a border on each sheet of said map, and further, adequate storm drain system and/or levees, dikes and pumping systems shall be provided to the satisfaction of the city engineer.

Ord. 98-10 § 1, 1998

All major subdivisions shall provide to the extent feasible for future passive

or natural heating or cooling opportunities in the subdivision, as required by Section 66473.1 of the Government Code.

Ord. 98-10 § 1, 1998

(A) Existing trees shall be preserved on the site unless otherwise approved by the city council as a part of the site development plans.

(B) Unless specifically approved by the city council, any tree removed shall be replaced on the site. Replacement trees shall be a minimum size of a twenty-four-inch box of the same species unless specifically approved by the city council.

Ord. 98-10 § 1, 1998

In the event a subdivision

application is filed for any property with slopes of ten percent or greater, the following shall be provided:

(A) Grading. With the tentative parcel map or tentative subdivision map, a grading plan must be submitted showing the following:

(1) Existing contours at a maximum interval of five feet;

(2) Proposed finished contours at a maximum interval of five feet. Finished contours shall show the following:

(a) Tops and toes of all banks,

(b) All side banks must be benched horizontally ten feet for every vertical twenty-five feet change in elevation,

(c) Maximum fill slopes two horizontal to one vertical,

(d) Maximum cut slope two horizontal to one vertical. Special conditions may require flatter slopes, if determined to be necessary by the city engineer,

(e) Maximum height of a cut bank fifty feet vertical; of a fill bank twenty-five feet vertical;

(3) Lot drainage shall be so arranged that water from upper lots does not flow across banks unless carried in a storm sewer or similar feature as otherwise may be approved by the city engineer;

(4) Estimate of the cubic yardage to be imported or exported;

(5) Earth shall not be exported from the site without specific approval of the city council. Necessity for substantial earth removal from the site must be demonstrated before any radical grading will be permitted. All haul routes and the disposal sites shall be approved by the city council;

(6) Sufficient topsoil shall be stockpiled and returned to horizontal cut areas to cover a minimum of eight inches;

(7) Fill must have a certified relative compaction of ninety-five percent state of California, Division of Highways Test Methods 216-9 unless otherwise approved by the city engineer;

(8) Rear and side lot lines shall occur at tops of banks rather than at center or toe of bank unless otherwise approved by the city engineer;

(9) Adequate erosion control measures not limited to seeding;

(10) Driveway to garage or carport shall not exceed ten percent grade unless specifically approved by the city engineer.

(B) Streets.

(1) Maximum street grade shall for all streets shall be ten percent unless otherwise approved by the city engineer.

(2) Vertical curbs shall be required on slopes of over five percent grade, unless otherwise approved by the city engineer.

(3) Cul-de-sacs:

(a) Property line radius at bulb of cul-de-sac: forty-foot minimum unless otherwise approved by the city engineer;

(b) Minimum lot frontage at property line in bulb of cul-de-sac: forty feet unless otherwise approved by the city engineer;

(c) Minimum lot width measured along setback line of lots in bulb of cul-de-sac: sixty feet unless otherwise approved by the city engineer;

(d) Overall cul-de-sac maximum length: three hundred feet unless otherwise approved by the city engineer.

Ord. 98-10 § 1, 1998

All utilities shall be installed underground in accordance with the

provisions of the American Canyon Municipal Code. All underground utilities shall be installed before preparation of subgrade for paving or any other site improvements that may effect the orderly installation of the underground utilities.

Ord. 98-10 § 1, 1998

Street lighting shall be installed throughout the subdivision in accordance with the

engineering standards.

Ord. 98-10 § 1, 1998