(a) Projects with net densities equal to or less than two dwelling units per acre may be served by open-section roads without sidewalks or street lighting. Projects with a net density greater than two units or more per acre are required to have street lighting and closed-section roads with sidewalks within the right-of-way on each side of the street. On occasion, open section design may be allowed for higher density developments if the number of access points are minimized by off-street parking areas. Net density for purposes of this section shall not include common open space and street rights-of-way.
(b) The width of pavement and rights of way shall be in accordance with City standards and specifications.
(c) Street grades shall not exceed the following:
Type of City Street | Grade (Percent) |
(1) Arterial | 6.0 |
(2) Collector | 8.0 |
(3) Local major | 10.0 |
(4) Local minor | 10.0 |
(5) Cul-de-sac | 12.0 |
(5a) Cul-de-sac end | 4.0 |
(6) Alley | 10.0 |
(d) For adequate drainage, the minimum street grade shall not be less than one percent, or as approved by the City Engineer in accordance with acceptable engineering standards.
(e) A normal street crown shall be provided on all streets, not superelevated, of one- fourth inch per foot straight slope extending in cross section from edge of pavement to centerline, symmetrical to the center.
(Ord. 90-1312. Passed 5-1-90.)