The scenic corridor district may be combined with one or more district classifications to insure the protection of scenic highways for the enjoyment of the public, to provide safe, efficient and economical transportation of people and goods. Further, it is the intention of this district to eliminate unsightly conditions which may be unduly distracting and may impair the safety of highway users, to create a favorable public image with the city and to ensure the enhancement of property values and scenic values in areas through which the highway passes. The regulations in this district are intended to protect views from the highways, retain unusual and attractive natural features within the scenic corridor and prevent uncontrolled alterations of land grades by excavation or recontouring.

The scenic corridor district regulations shall apply in addition to the regulations of the district with which the scenic corridor district is combined. The provisions of this chapter shall govern in such cases where the regulations differ between the scenic corridor district and the district with which it is combined.

The following regulations shall apply in all S-C districts and shall be subject to the provisions of Chapters 17.48—17.52.

Uses permitted subject to the permits required in the basic zoning district, except the following:

Information panels providing direction and information regarding points of interest, noncommercial in nature, will be permitted subject to the planning commission.

There shall be required, prior to the issuance of a building permit in this district, a development plan to be approved by the planning commission.

The development plan may include requirements for landscaping, signs, visual screens, the number, location and extent of access points from the street or road, the location and design of buildings and off-street parking, and any other conditions deemed essential to insure the compatibility of the proposed use(s) with the intent of this chapter as approved by the planning commission.

Minimum Lot Width. The minimum lot width shall be one hundred feet, except single family uses, sixty feet.

Maximum Coverage. No building or group of buildings or structures shall occupy more than fifty percent of the lot area.

Yards. Buildings and other structures in the S-C district may occupy any portion of the lot or building site except the following yards which shall be provided:

Use of Yard Areas. These conditions shall supersede the requirements of the basic district. The following uses only shall be made of yard areas, and then only if such uses are otherwise permissible pursuant to the provisions of this title:

Height.

Elevations and Design. All buildings and other structures within this district shall be designed, constructed and maintained in a manner in keeping with the purpose and intent of this district as set forth.

Alterations to natural or artificial contours shall be limited as follows:

Advertising Signs.

Parking. Off-street parking and loading space in this district shall be provided in accordance with the provisions of Chapter 17.52.

Utilities. All extensions or relocation of distribution and service lines within commercial, industrial and urban areas shall be placed underground in accordance with the rules on file with the California Public Utilities Commission. In cases where the utility rules do not require undergrounding the planning commission may require undergrounding unless it is found that such undergrounding is unreasonable because of terrain, soil conditions, geological problems or type of development to that particular piece of property.

The utility company shall coordinate in the planning stage with the planning commission on the location or relocation of all transmission lines that would be within one thousand feet of the scenic corridor. When determining the location of the transmission lines within the above-stated areas of one thousand feet, the following guidelines should be used: