The design and improvement standards contained herein are minimums for local streets in residential subdivisions. All such streets shall be designed and constructed in accordance with standards as specified in the following table. Cul-de-sacs are required whenever a street is intended to be permanently dead-ended.
Table 5: Street Design Standards for Local Streets, including Cul-de-sacs
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Terrain Classification | Level | Rolling | Hilly |
Table 5: Street Design Standards for Local Streets, including Cul-de-sacs
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Terrain Classification | Level | Rolling | Hilly |
Berms (total both sides) | 4 | 4 | 4 |
Maximum cul-de-sac length | 1,000 | 1,000 | 1,000 |
Maximum grade | 4% | 8% | 15% |
Minimum centerline radius of streets with an angle of: (1) Between 80 and 100 (2) Less than 80 or more than 100 | 50 200 | 50 200 | 50 200 |
Minimum cul-de-sac radius (pavement) | 45 | 45 | 45 |
Minimum cul-de-sac radius (R/W) | 55 | 55 | 55 |
Minimum stopping sight distance (feet) | 250 | 200 | 150 |
Pavement width (feet) | 22 | 22 | 22 |
Right-of-way (feet) | 50* | 50* | 50* |
*A utility easement 10 feet in width may be required along each side of the street right-of-way for these streets. | |||
Note: Exceptions to the standards contained in this table are permitted under certain conditions for large lots. Hillside lots with grades of more than 15% are also subject to exceptions as provided under §§ 151.240 through 151.249. Note: See Drawing 1 for a typical section of a local street. | |||
(Prior Code, § 23.05.12) Penalty, see § 151.999