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Jefferson City Zoning Code

CHAPTER 12

40 DESIGN STANDARDS GENERALLY

§ 12.40.010 Construction standards.

The standard specifications for construction, reconstruction or repair of streets, sidewalks, curbs, gutters and other public improvements within the City area shall be as approved in the City's Standard Specifications Manual. Unless otherwise provided in the particular specifications for work authorized, public facility work shall be according to the standard specifications.
(DC § 10.010)

§ 12.40.020 Specification adjustment by engineer.

The city engineer may make changes or supplements to the standard specifications consistent with the application of engineering principals to the conditions in this City. The engineer shall incorporate amended or new specifications into the Standard Specifications Manual.
(DC § 10.030)

§ 12.40.030 Standards for area protection conditions.

When the imposition of discretionary standards is authorized to avoid detrimental environmental impacts or to protect the best interest of the surrounding development or the community as a whole, the standards may include those which accomplish the following:
A. 
Limit the manner in which the use is conducted including restricting the time a certain activity may take place and restraints to minimize such environmental affects as noise, vibration, air pollution, glare and odor;
B. 
Establish a special yard or other open space or lot area or dimension;
C. 
Limit the height, size or location of a building or other structure;
D. 
Designate the size, number, location and nature of vehicle access points;
E. 
Increase the amount of street dedication, roadway width or improvements within the street right-of-way;
F. 
Designate the size, location, screening, drainage, surfacing or other improvement of a parking area or truck loading area;
G. 
Limit or otherwise designate the number, size, location, height and lighting of signs;
H. 
Limit the location and intensity of outdoor lighting and require its shielding;
I. 
Require diking, screening, landscaping or another facility to protect adjacent or nearby property and designate standards for its installation and maintenance;
J. 
Designate the size, height, location and materials for a fence;
K. 
Protect and preserve existing trees, vegetation, water resource, wildlife habitat or another significant natural resource;
L. 
Make any other condition to permit the development of the City in conformity with the intent and purpose of avoiding detrimental environmental impacts, or protecting the best interests of the surrounding development, or the community as a whole.
(DC § 8.010)

§ 12.40.050 Fences.

Fences, walls and hedges shall not exceed six feet in height, except to enclose a swimming pool where a height of eight feet shall be allowed. Fences, walls and hedges within the front yard setback in a residential district are restricted to a maximum height of four feet. The construction of a fence over six feet in height or a retaining wall over four feet requires a building permit. Fences, walls and hedges shall be constructed within property lines and must conform to Section 12.40.080, Clear vision area.
(DC § 7.020)

§ 12.40.060 Exceptions to setback requirements.

The following intrusions may project into required yards provided that the conditions and limitations are adhered to:
A. 
Depressed Areas. In any district, open work fences, berms, hedges, guard rails, or other landscaping or architectural devices for safety protection around depressed areas, ramps, stairs or retaining walls may be located in required yards, provided that such devices are not more than three and one-half feet in height.
B. 
Projecting Building Features. The following building features may project into the required front yard no more than five feet, and into the required rear or side yard no more than two feet:
1. 
Awnings, buttresses, architectural appendages; examples such as, but not limited to, bay windows, planters, cantilevered stairways, or other similar features;
2. 
Chimneys and fireplaces, provided they do not exceed eight feet in width;
3. 
Porches, steps, platforms or landings, raised patios, decks;
4. 
Signs conforming to applicable code requirements.
(DC § 6.050)

§ 12.40.070 Special setbacks.

A. 
Setbacks for Properties Abutting Future Street Rights-of-Way. Where the adopted Comprehensive Plan and future street plans include the widening or connecting of existing streets, or the establishment of new streets, the placement of all buildings and the establishment of all required yards shall be in relation to the proposed street right-of-way boundaries. Also no building shall be erected on a lot which abuts a proposed street right-of-way, unless the lot will contain the width and depth needed to complete the street width plus the width and depth of the yards required on the lot.
B. 
Residential Setback Restrictions for Schools, Churches, Public and Semipublic Buildings. Any school, church, or public or semipublic building erected after the effective date of the Development Code shall be set back at least 25 feet from any property line adjoining or directly across public right-of-way from any residential district. Further, no required front or interior yard of the lot on which such building or use is located shall be used for stockpiling or storage of materials or equipment. All other setbacks of the district within which the property is located shall also apply.
(DC § 6.110, 6.120)

§ 12.40.080 Clear vision area.

A. 
A clear vision area shall be maintained at each access to a public street and on each corner of property at the intersection of two streets or a street and a railroad. No fence, wall, hedge, sign, or other planting or structure that would impede visibility between the heights of two feet and eight feet shall be established in the clear vision area. Measurements shall be made from the top of the curb or, where no curb exists, from the established street center line grade.
B. 
The preceding provisions shall not apply to the following:
1. 
A public utility pole;
2. 
A tree trimmed (to the trunk) to a line at least eight feet above the level of the intersection;
3. 
Any other plant species or open growth habit that is not planted in the form of a hedge and which is so planted and trimmed as to leave at all seasons a clear and unobstructed crossview;
4. 
A supporting member of appurtenance to a permanent building lawfully existing on the date this standard becomes effective;
5. 
An official warning sign or signal; and
6. 
A place where the natural contour of the ground is such that there can be no cross visibility at the intersection.
C. 
A clear vision area shall consist of a triangular area, two sides of which are lot lines, or a driveway and a lot line, for a distance specified in this section; or where the lot lines have rounded corners, the lot lines extended in a straight line to a point of intersection and so measured, and the third side of which is a line across the corner of the lot joining the nonintersecting ends of the other two sides.
D. 
The following measurements shall establish the clear vision areas:
Type of Intersection
Measurement Along Each Lot Line or Drive Edge
Controlled intersection (stop sign/signal)
20 feet
Uncontrolled intersection 60 ft. right-of-way
30 feet
Uncontrolled intersection less than 60 ft. right-of-way
40 feet
Commercial and industrial driveways
20 feet
Residential driveways
15 feet
Alleys (less than 25 ft.)
20 feet
When there is an intersection of two or more streets of different right-of-way width, the distance to be measured along the lot lines shall be the distance specified for each type street.
Diagram 12.40.080
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(DC § 6.140; Ord. 649 § 19, 2004)

§ 12.40.090 Lot coverage limits.

For all buildings and uses in the (below) listed zoning district, requirements are established setting the maximum lot coverage that buildings, parking areas or garages, and outside storage areas may occupy as expressed by the percentage listed below:
District
Combined Maximum Building and Parking Area Coverage
F
25%
R-1
50%
R-2
50%
R-3
70%
C
100%
I
100%
(DC § 6.150)

§ 12.40.100 Height limitations.

The following table indicates the height limitations in each zoning district:
District
Height Limitation
F, R-1 and R-2
2-1/2 stories or 30 feet, whichever is less
R-3, C and I
3 stories or 45 feet, whichever is less
(DC § 6.160)

§ 12.40.110 Height exceptions.

A. 
Roof Structures and Architectural Features. Roof structures for the housing of elevators, stairways, tanks, ventilating fans and similar equipment required to operate and maintain the building, fire walls, skylights, towers, flagpoles, chimneys, smokestacks, wireless masts, antennas, steeples, and similar structures may be erected above the height limits prescribed in this chapter provided that no roof structure, feature or any other device above the prescribed height limit shall be allowed or used for the purpose of providing additional floor space.
B. 
Churches and Public and Semipublic Buildings. In districts where churches and certain public and semipublic buildings require conditional use permits, the height restrictions may be waived as a part of the conditional use proceedings provided that a request for such has been noted in the public hearing notice.
(DC § 6.170)

§ 12.40.120 Access and circulation.

All new development shall conform to the following standards for vehicles and pedestrians to ensure safe and efficient access and circulation that does not detract from the storefront character of the mixed-use district.
A. 
Street and Sidewalk Requirements. The provisions of Chapter 12.48, "Street and Sidewalk Requirements," shall be met.
B. 
Vehicle Access and Circulation. Vehicle access may be provided by one of the following methods, in order of priority, as approved by the City:
1. 
If a parcel or lot has adequate alley access, vehicle access shall be from the alley.
2. 
If an existing private street or driveway is available on an adjoining property, it may be used to provide a vehicle access; an access easement, 20 feet in width minimum, may be required to assure access to the closest public street for all users of the private street or driveway.
3. 
Direct access from a public street adjacent to the development is permitted if both of the above options are not available. For lots abutting multiple streets, access should be from the lower ranked street. The owner or developer may be required to close or consolidate existing accesses as a condition of approving a new access.
C. 
Pedestrian Access and Circulation.
1. 
In mixed-use and commercial zones, all new developments shall be served by a 10 foot wide sidewalk in the adjacent public right-of-way. Development may use a four-foot furnishings area within the sidewalk for benches, trash cans, light poles, newspaper boxes, flower planters, mail boxes and other pedestrian amenities, subject to approval by the City.
2. 
Multiple building developments and developments with off-street parking shall provide a continuous pedestrian pathway system that extends throughout the development site, and connects to all building entrances and all future phases of development. A direct and convenient pedestrian route shall be provided between the building main entrance(s) and the nearest sidewalk abutting the site or roadway where there is no sidewalk between the development site and abutting properties. Pedestrian and bicycle connections shall connect the onsite circulation system to existing or proposed walkways and bicycle routes, respectively, that abut the property. When abutting properties are undeveloped or have the potential to be redeveloped, accessways and walkways on site shall be laid out or stubbed to allow for an extension to the abutting property.
a. 
A walkway is reasonably direct when it follows a route that does not deviate unnecessarily from a straight line or it does not involve a significant amount of out-of-direction travel;
b. 
The walkway is designed primarily for pedestrian safety and convenience, meaning it is free from hazards and provides a reasonably smooth and consistent surface and direct route of travel between destinations.
c. 
Walkway Width. Walkways shall be not less than five feet in width, except that concrete walkways with a minimum of six feet in width are required in commercial developments.
3. 
The City may exempt a land use application from the provisions in subsections (C)(1)–(C)(3) of this section, if the approval involves only the partitioning of land, a lot line adjustment, or other approval that does not create additional pedestrian traffic.
D. 
Separating Pedestrians and Vehicles. All crosswalks through vehicle areas, including marked crossings in parking areas, shall be striped or constructed with different materials (e.g., pavers or stamped concrete) to clearly identify pedestrian zones. Where pedestrian and vehicle areas are adjacent and parallel, they shall be separated by one of the following means:
1. 
The pedestrian area may be raised at least six inches above the vehicle area and curbed. The ends of the raised portions must be equipped with curb ramps for wheelchair access.
2. 
The pedestrian area may be separated from the vehicle area by a landscaped berm (minimum width of four feet) with a curb, bollards, or other physical barrier.
E. 
All sidewalks and pathways shall conform to federal Americans with Disabilities Act requirements in design and materials.
F. 
For sidewalks and vehicle access points within the right-of-way of a state highway, permission must be obtained from the Oregon Department of Transportation, and evidence of such permission must be submitted to the City prior to approval by the City.
G. 
For sidewalks and vehicle access points within the right-of-way of a county road, permission must be obtained from the Marion County Department of Public Works, and evidence of such permission must be submitted to the City prior to approval by the City.
(Ord. 723 § 6, 2023)