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arterial or county collector in accordance with the design and construction standards <br />identified in these standards. The county does not provide maintenance for unimproved <br />county rights-of-way. <br />B. Private Roads. A Private road is defined as any access serving three or more lots (including <br />residential, commercial, industrial, or agricultural use), residences, or multi -family units that is <br />privately owned and maintained. <br />Private roads are classified as urban and rural just as the public county road system. They must <br />meet the Kittitas County private road minimum design standards as identified in these standards. <br />Benefited property owners are required to perform their own maintenance and repair work. <br />Operation and maintenance agreements to provide for this work on both the road network and <br />the stormwater system are required., Short plats proposed on properties to which the access is <br />over private roads that do not meet the standards in this section shall be recommended for denial <br />unless upgraded to the current standard. <br />1. Private Urban Road. Like county urban roads, private urban roads serve high density areas <br />with smaller lot sizes. They are often located within a designated Urban Growth Areas <br />(UGA's) within the county, or in a LAMIRD, in which case they shall utilize the appropriate <br />city development standards for the UGA in which it is located. If they are not located within <br />a UGA, then these standards apply. Private urban roads will have urban elements such as <br />curb and gutter, and underground stormwater conveyance systems. See KC Standard Plan <br />7. <br />2. Private Rural Road: Like rural county roads, private rural roads serve larger lot sizes and do <br />not lie within a designated urban growth areas. They typically lack urban elements such as <br />curb and gutter, sidewalks, and underground storm drainage systems, but may include <br />other pedestrian and bicycle facilities. Storm drainage systems for rural roads typically <br />utilize ditches and culverts. See KC Standard Plan 8. <br />12.03.040 Terrain Classification. <br />For the purposes of these standards, existing and proposed roadways in Kittitas County are divided into <br />terrain classifications based on ratios of roadway profile slopes present for a given roadway segment. <br />Profile slopes shall not exceed 10% maximum in any classification. Terrain classifications shall be as <br />follows: <br />A. FLAT β€”At least 75% of the existing terrain along the roadway corridor has a profile slope that is <br />less than or equal to S%. The remaining 25% of the existing terrain along the roadway corridor <br />may be steeper than 5%. <br />B. ROLLING TERRAIN β€” Moderate changes in elevation with respect to the roadway corridor, and <br />occasional steep slopes offer some restriction to normal horizontal and vertical roadway <br />alignment. At least 75% of the existing terrain along the roadway corridor has profile slopes that <br />Title 12 Kittitas County Code I Draft No. 5 β€” Working Draft for Adoption 6/12/2018 <br />21 <br />