Chapter 23.29 — ROAD STANDARDS

Click here for PDF version of the table. Urban and Suburban Lots < Five Acres Road Classification Dwelling Units Reserved R/W Width (4)(6) C to C Width (5) Roadbed Width Curb and Gutter Sidewalks Lighting Noise Cont. and Street Trees Design Speed Min. Traffic Index Allowable ADT @ Buildout Urban and Suburban Lots < Five Acres Road Classification Dwelling Units Reserved R/W Width (4)(6) C to C Width (5) Roadbed Width Curb and Gutter Sidewalks Lighting Noise Cont. and Street Trees Design Speed Min. Traffic Index Allowable ADT @ Buildout Common drive PVT 2-4 30 16 18 No No No No 10 mph 3.0 40 Cul-de-sac or loop 5-50 60 40 42 Yes Yes (8) Yes Trees 20 mph 4.0 500 Local RES (through) 51-200 60 40 42 Yes Yes Yes Trees 30 mph 4.5 1,500 Collector no access (7) 201-600 60 40 42 Yes Yes Yes Both 50 mph 5 6,000 Collector access 201-800 84 64 66 Yes Yes Yes Both 40 mph 6 8,000 Arterial (7) 601-2000 110 94 96 Yes Yes Yes Both 60 mph 7 20,000 Expressway (7) 2001- 3600 130 2-40 2-42 Yes Yes Yes Both 70 mph 8 36,000 NOTES TO TABLE: MOUNTAIN & RECREATIONAL In open or moderately sloping areas the ruts! standards shell prevail. But true mountain or forested areas require individual design considerations to preserve slopes. trees, and ground normally cover. Loops of one-way road maintenance. narrow roads with frequent passing bays may be needed, consistent with required fire apparatus access. Such types of roads will normally be private, not requiring county maintenance. PLANNED UNIT DEVELOPMENTS Street requirements shall be based on the approximate above category, subject to the design flexibility that is the purpose for PUDs. (1) Rural units based on 12 TE/unit. (2) Per development approval. (3) Minimums shown above shall be increased where warranted by soils or traffic characteristics. (4) R/W is determined by number of lots served at maximum allowed density. (5) Improvements are determined by number of lots served at the conclusion of the current development. (6) Slope easements as needed, PUE's and TPEs will be required in addition to the R/W shown. (7) Limited access classifications. (8) Where serving up to 20 lots, sidewalk on one side may be allowed. SPECIFIC PLANS Street requirements within the boundaries of an adopted specific plan shall be as set forth therein.

Click here for PDF version of table below. Urban and Suburban Lots > Five Acres

Road Classification Dwelling Units Reserved R/W Width (4)(6) C to C Width (5) Roadbed Width Curb and Gutter Sidewalks Lighting Noise Cont. and Street Trees Design Speed Min. Traffic Index Allowable ADT @ Buildout Urban and Suburban Lots > Five Acres Road Classification Dwelling Units Reserved R/W Width (4)(6) C to C Width (5) Roadbed Width Curb and Gutter Sidewalks Lighting Noise Cont. and Street Trees Design Speed Min. Traffic Index Allowable ADT @ Buildout Common drive PVT 2-4 30 16 18 No No No No 10 mph 3 48 Cul-de-sac or loop 5-42 60 24 34 No (2) No No 20 mph 4.0 500 Local RES (through) 43-125 60 28 38 No (2) Intersection No 30 mph 4.5 1,500 Collector no access (7) 126-500 60 32 42 No (2) Intersection No 50 mph 5 6,000 Collector access 126-666 84 56 66 No (2) Intersection No 40 mph 6 8,000 Arterial (7) 667-1667 110 94 96 No (2) Intersection Both 60 mph 7 20,000 Expressway (7) 1668- 3000 130 2-29 2-34 No (2) Intersection Both 70 mph 8 36,000 NOTES TO TABLE: MOUNTAIN & RECREATIONAL In open or moderately sloping areas the ruts! standards shell prevail. But true mountain or forested areas require individual design considerations to preserve slopes. trees, and ground normally cover. Loops of one-way road maintenance. narrow roads with frequent passing bays may be needed, consistent with required fire apparatus access. Such types of roads will normally be private, not requiring county maintenance. PLANNED UNIT DEVELOPMENTS Street requirements shall be based on the approximate above category, subject to the design flexibility that is the purpose for PUDs. (1) Rural units based on 12 TE/unit. (2) Per development approval. (3) Minimums shown above shall be increased where warranted by soils or traffic characteristics. (4) R/W is determined by number of lots served at maximum allowed density. (5) Improvements are determined by number of lots served at the conclusion of the current development. (6) Slope easements as needed, PUE's and TPEs will be required in addition to the R/W shown. (7) Limited access classifications. (8) Where serving up to 20 lots, sidewalk on one side may be allowed. SPECIFIC PLANS Street requirements within the boundaries of an adopted specific plan shall be as set forth therein.

(Ord. 860, § 4 (part), 2010)