Chapter 16.20
DESIGN AND LAYOUT STANDARDS
Sections:
16.20.020 Standards – Adopted.
16.20.030 Standards – Copies on file.
16.20.040 Streets – Conformance with street plan.
16.20.100 Streets – Right-of-way and roadbed widths.
16.20.110 Street frontage improvements.
16.20.150 Parking requirements.
16.20.170 Alleys – Required when.
16.20.180 Alleys – Specifications.
16.20.190 Easements – Required when.
16.20.210 Watercourse easements.
16.20.260 Lots – Minimum size.
16.20.010 Minimum standards.
The principles and requirements within this chapter shall be followed in the development of all subdivisions and shall be considered minimum standards. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.01, 1980].
16.20.020 Standards – Adopted.
The “City of Castle Rock Engineering Standards for Public Works Construction,” together with the laws of the state and ordinances and resolutions of the city, shall apply except as amended or superseded by ordinance or resolution. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.02(A), 1980].
16.20.030 Standards – Copies on file.
The “City of Castle Rock Engineering Standards for Public Works Construction” is adopted by this reference; and the design and layout of streets and such other construction regulated or reviewed pursuant to this title shall be done in accordance with that standard. The documents are on file with the city clerk-treasurer and may be reviewed upon request or purchased for the price established in the fee schedule. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.02(B), 1980].
16.20.040 Streets – Conformance with street plan.
The location of all streets and roads shall conform to the official street plan adopted or in preparation by the city. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(A), 1980].
16.20.045 Arterial streets.
Arterial streets will be designed to move vehicles through the city and between various areas of the city. Direct driveway access to arterial streets shall be avoided except where no other access is available. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006].
16.20.050 Access streets.
Access streets will be designed primarily to provide access to abutting properties only and shall be designed to discourage through traffic. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(B), 1980].
16.20.060 Cul-de-sac streets.
“Cul-de-sacs,” defined in CRMC 17.16.685, are required for roads longer than 150 feet, but they cannot exceed 400 feet in length. Please refer to the “City of Castle Rock Engineering Standards for Public Works Construction” for design specifications. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 2003-05 § 2, 2003].
16.20.100 Streets – Right-of-way and roadbed widths.
The minimum street right-of-way and roadbed widths shall be in “City of Castle Rock Engineering Standards for Public Works Construction” and are adopted by this reference. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(G), 1980].
16.20.110 Street frontage improvements.
Except where deemed impractical by the city council, all plats, subdivisions, short subdivisions, condominiums, and binding site plans shall install street frontage improvements at the time of construction as required by “City of Castle Rock Engineering Standards for Public Works Construction.” Such improvements may include curb and gutter, sidewalk, bus stops, street storm drainage, street lighting system, traffic signal modification, relocation or installation, utility relocation, landscaping and irrigation, and street widening all per these standards. Plans shall be prepared and signed by a licensed civil engineer registered in the state of Washington. All frontage improvements shall be made across full frontage of property from centerline to right-of-way line. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(H), 1980].
16.20.120 Half streets.
A street lying along the boundary of a subdivision may be dedicated one-half of the required width if it is practical to require the dedication of the other half when the adjoining property is subdivided. Whenever there exists a dedicated half street of an adjoining subdivision next to a proposed subdivision, the other half shall be dedicated on the proposed subdivision to make the street complete. To ensure that this occurs, a one-foot conditional dedication shall be required on the subdivision boundary along the street for the purpose of withholding access from the unsubdivided property to said street until such time as a complete street is constructed. This same procedure will also be required when a street dead-ends at the boundary of any subdivision. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(I), 1980].
16.20.140 Street lighting.
Street lighting shall be included in the development of all future platting and/or subdivisions. Street lights shall be placed at all streets per the “City of Castle Rock Engineering Standards for Public Works Construction.” [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(K), 1980].
16.20.150 Parking requirements.
When a plat or subdivision is included in an area where off-street parking is required, such off- street parking shall be as required by CRMC Title 17. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(L), 1980].
16.20.160 Railway crossings.
Where a railway grade crossing is involved, the plan of subdivision will be considered with reference to the probability of a future grade separation or other treatment of the crossing, and the platting may be required to conform to preliminary general plans of such grade separation. When the subdivision is adjacent to a railroad right-of-way and the topography or zoning plans indicate that such property will be used for industrial purposes, highways running in the same general direction will be required to be as nearly parallel with such rights-of-way as practicable and at least one lot depth distant therefrom. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.03(M), 1980].
16.20.170 Alleys – Required when.
Alleys should be provided at the rear of all lots intended for commercial or industrial uses. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.04(A), 1980].
16.20.180 Alleys – Specifications.
Dead-end alleys shall be avoided whenever possible, but, if unavoidable, shall be provided with turnaround facilities. Alley intersections and sharp changes in direction shall be avoided, but where they are necessary, corners shall be rounded sufficiently to permit safe vehicular movement. Except as otherwise provided in this title, alleys shall follow the general development standards governing streets. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.04(B), 1980].
16.20.190 Easements – Required when.
A. Except where alleys of not less than 20 feet are provided for that purpose, the city council may require easements not exceeding 10 feet on each side of all rear lot lines, and on side lot lines where necessary or, in the opinion of the city council, advisable, for poles, wires, conduits, storm and sanitary sewers, gas, water and heat mains or other utility lines or across lines where necessary for the extension of existing or planned utilities.
B. If, in the opinion of the city council, the most suitable and reasonable locations for any of the utilities, such as sewers, storm drains, water and gas pipes and electric pole lines and conduits, which are likely to be required within a subdivision, either for the service thereof or for service of areas in the surrounding territory, do not wholly lie within the streets, including alleys, if any, shown upon the plat, the city council may require, as far as reasonable, provisions to be made for the location of such utilities on routes elsewhere than within said streets, either by dedication of public easements for the same as part of the plat or by the filing of supplementary instruments which will adequately protect public interest in the proper location of said utilities. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.05(A), 1980].
16.20.200 Public open spaces.
All residential single-family subdivision (including manufactured home parks/subdivision) and multifamily development proponents shall be required to dedicate land for park areas prior to receiving any occupancy permit. Upon finding that there is cause for a variation in accordance with Chapter 16.36 CRMC, or if the proponent demonstrates that off-site improvements associated with projects identified in the park and recreation plan are of greater benefit to the city than an on-site land dedication, the city council may accept off-site improvements or a fee in lieu of land dedication; provided, that the off-site improvements are completed or the fee in lieu of land dedication will be collected in full prior to final plat approval.
All mitigation measures are to be based on specific impacts based on population increase caused by the development as determined in the city’s park and recreation plan adopted via Resolution No. 2005-02, or amended thereafter. Said dedication shall be based on an assessment of demand and need along with established park standards set forth within the adopted park and recreation plan. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.05(B), 1980].
16.20.210 Watercourse easements.
Where a subdivision is traversed by a watercourse, drainageway, wasteway, channel or stream, there shall be provided a stormwater easement or drainage right-of-way conforming substantially to the line of such watercourse, drainageway, wasteway, channel, or stream, and of such width for construction, maintenance, and control as will be required for such purposes. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.05(C), 1980].
16.20.220 Blocks – Length.
Intersecting streets shall be laid out so that blocks between street lines shall be provided in accordance with the “City of Castle Rock Engineering Standards for Public Works Construction,” except that where, in the opinion of the city council, extraordinary conditions unquestionably justify departure from this maximum, the city council may require or permit greater distances between street lines. The city council may require, at or near the middle of the block, a public pedestrian way not less than 15 feet in width for foot traffic. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.06(A), 1980].
16.20.230 Blocks – Width.
The width of blocks shall be such as to allow two rows of lots, of the size specified in this chapter, unless exceptional conditions are, in the opinion of the city council, such as to render this requirement impracticable. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.06(B), 1980].
16.20.240 Lots – Access.
Each lot shall be provided with satisfactory access by means of a public street connecting to existing and developed highways or by some other legally sufficient right of access which is permanent and inseparable from the lot to be served. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.07(A), 1980].
16.20.250 Lots – Arrangement.
In all quadrangular lots and, so far as practicable, all other lots, the side line shall be at right angles to straight street lines or radial or curved street lines. An arrangement placing adjacent lots at right angles to one another shall be avoided where practicable. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.07(B), 1980].
16.20.260 Lots – Minimum size.
Minimum lot sizes and lot dimensions of any subdivision shall be as required by CRMC Title 17. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 518 § 1, 1980; Ord. 509 § 5.07(C), 1980].
16.20.270 Minimum yards.
The minimum front, side or rear yard within a subdivision shall be as required by the zoning ordinance then in effect. [Ord. 2010-01 Att. A, 2010; Ord. 2006-09 Att. A, 2006; Ord. 509 § 5.07(D), 1980].