Chapter 18.12 — O DISTRICT—OPEN CONSERVATION

The intent of the O open conservation district is to provide for permanent open spaces in the community and to safeguard the health, safety and welfare of the people. This will be accomplished by limiting developments in areas where police and fire protection are not readily available, and where protection

against flooding by storm water and dangers from excessive erosion are not possible without excessive costs to the community.

(Ord. 68-128 §5-204, 1968).

The following uses shall be permitted in the O district, plus such other uses as the commission may deem to be similar and not more obnoxious or detrimental to the public health, safety and welfare. All uses shall be subject to the property development standards in Sections 18.12.060 through 18.12.170.

A.

Flood control channels, spreading grounds, settling basins, parkways, park drives;

B.

Recreation areas, parks, playgrounds, wildlife preserves and such buildings and structures as are related thereto;

C.

Agricultural uses provided that no dwellings, either temporary or permanent, be permitted in relation thereto;

D.

Fisheries;

E.

Signs, subject to provisions of Section 18.12.100.

(Ord. 68-128 §5-204.1, 1968).

The following uses shall be permitted subject to review and approval by the commission:

Radio receivers and transmitter towers and structures.

(Ord. 68-128 §5-204.2, 1968).

The following uses shall be permitted subject to a conditional use permit as provided for in Section 18.32.040:

A.

Quarries. Extraction, processing, removing and stockpiling of rock, sand and gravel, including the installation or maintenance or operation of rock crushing plants or apparatus, and Portland cement Batching plants, in such areas in the O district as the commission and council may approve, if within ninety days after such approval and continuously thereafter, the outer boundaries of such areas have been continuously posted with signs not less than five hundred feet apart and at each change of direction of the outer boundary line in such a manner as will reasonably give notice to bypasses of matters contained in such notice, stating in letters not less than four inches in height: "Rock Quarry Area," and stating in letters not less than one inch in height: "This property may be used at any time for rock quarry, sand, gravel pit, rock crushing plant or any use allowed in the O Open Conservation District." The following standards shall apply:

All equipment and premises used for such purposes shall be constructed, maintained, and operated in such a manner, as far as is practicable, as to eliminate noise or vibration or dust, which are injurious or annoying to persons living in the vicinity.

All private truck roads connecting rock quarries, processing plants or stockpiles shall be kept wetted while being used or shall be oiled or hard-surfaced and maintained so as to prevent the creation of dust.

Such use shall by not less than fifty feet from:

a.

Any property in any district other than O district;

b.

Any property other than a lot or parcel of land being so used unless the written consent of the owner in fee of such property is first secured;

c.

Any highway, street, or flood control easement.

The rock crushing plant or other apparatus for the manufacture of rock, sand or gravel, except primary crushing operations in conjunction with the excavation, shall be not less than seven hundred and fifty feet from any residential district.

No production from an open pit shall be permitted which creates a slope steeper than one foot horizontal to one foot vertical. A steeper slope may be permitted by permit from the city, but in no case may such slope be permitted within two hundred feet of any property line.

Property to be used for such excavation shall be enclosed along the exterior boundaries thereof as excavation progresses by a fence or wall not less than six feet in height.

Traffic warning signs required by the city shall be maintained by the operator of such quarry.

If within five hundred feet of a residential area, a plant shall not be operated on any property except between the hours of six a.m. and ten p.m., except in case of a public emergency, or whenever any reasonable or necessary repairs to equipment are required to be made. The provision of paragraph 1 of this section shall also apply to this paragraph.

Approval shall be subject to the submission of a site plan as provided in Chapters 18.38 and 18.40 of this code and a contour plan and section showing the projected excavation.

B.

Removal of natural resources other than as provided for in paragraph A above, subject to the applicable regulations of said paragraph;

C.

Caretaker's dwelling, and necessary accessory buildings.

(Ord. 68-128 §5-204.3, 1968).

The following uses are expressly prohibited in the O district:

A.

Residential uses, except as provided for in Section 18.12.040 above;

B.

Commercial uses other than those related to and under the regulations of parks or city, county, state or federal recreational agencies;

C.

Industrial uses, excepting as listed in Sections 18.12.020 through 18.12.040;

D.

Advertising structures.

(Ord. 68-128 §5-204.4, 1968).

The following property development standards in Sections 18.12.070 through 18.12.170 apply to all land and structures in the O district.

(Ord. 68-128 §5-204.5(part), 1968).

There shall be a minimum lot area of five acres.

(Ord. 68-128 §5-204.5(A), 1968).

No requirements.

(Ord. 68-128 §5-204.5(B), 1968).

None, however, the provisions of Section 18.12.040 shall apply.

(Ord. 68-128 §5-204.5(C), 1968).

A.

No building or structure erected in this district shall have a height greater than one story, not to exceed fifteen feet, with the following exceptions:

B.

Exceptions:

Public utility and public service structures;

All other buildings or structures which the commission determines are necessary for reasonable operation of permitted uses.

(Ord. 68-128 §5-204.5(D), 1968).

The requirements of the R-1 district, Section 18.14.100, shall apply.

(Ord. 68-128 §5-204.5(E), 1968).

No requirements.

(Ord. 68-128 §5-204(F), 1968).

Permitted buildings and structures shall not exceed ten percent of the total lot area.

(Ord. 68-128 §5-204.5(G), 1968).

A.

For extraction, processing and removing of rock, sand and gravel, the provisions of Section 18.12.040(6) shall apply.

B.

A fence or wall shall be constructed along the perimeter of all areas designated by the commission to be dangerous to the health, safety and general welfare.

C.

Corner Cut-off Areas. The following regulations shall apply to all intersections of streets, alleys or private driveways, in order to provide adequate visibility for vehicular traffic. There shall be no visual obstruction within the cut-off areas established herein.

There shall be a corner cut-off area at all intersecting streets or highways. The cut-off line shall be a horizontal plane, making an angle of forty-five degrees with the side, front or rear property line as the case may be. It shall pass through the points located on both the side and front (or rear) property lines at a distance of thirty feet from the intersection of such lines at the corner of a street or highway.

There shall be a corner cut-off area on each side of any private driveway intersecting a street or alley. The cut-off lines shall be in a horizontal plane, making an angle of forty-five degrees with the side, front or rear property line as the case may be. They shall pass through a point not less than ten feet from the edges of the driveway where it intersects the street or alley right-of-way.

There shall be a corner cut-off area on each side of any alley intersecting a street or alley. The cut-off lines shall be in a horizontal plane, making an angle of forty-five degrees with the side, front or rear property line as the case may be. They shall pass through a point not less than ten feet from the edges of the alley where it intersects the street or alley right-of-way.

Where, due to an irregular lot shape, a line at a forty-five degree angle does not provide for intersection visibility, the corner cut-off shall be defined by a line drawn from a point on the front (or rear) property line that is not less than thirty feet from the intersection of the side and front (or rear) property lines and through a point on the side property line that is not less than thirty feet from the intersection of the side and front (or rear) property lines.

(Ord. 68-128 §5-204.5(H), 1968).

No requirements, except that where a congregation of people is intended, there shall be one parking space for each five persons which the facility is intended or designed to serve.

(Ord. 68-128 §5-204.5(I), 1968).

No requirements, other than where a congregation of people is intended, in which case access to parking areas shall be from a dedicated and improved street or by way of an easement legally established for vehicular traffic.

(Ord. 68-128 §5-204.5(J), 1968).

Signs shall be permitted subject to the following standards:

The sign shall in no way endanger the health and safety by causing distractions to operators of motor vehicles on the streets or highways, nor shall any sign be designed and located so as to be confused with traffic signs and signals.

(Ord. 68-128 §5-204.5(K), 1968).