§ 1621. Street grades.

(a)

Minimum grades. All streets shall have a minimum grade of 0.5 percent. Minimum grade on cul-de-sacs shall be one percent. See also standard drawing T-11 in article 23 of this UDC.

(b)

Maximum grades and minimum design speeds. Maximum grades and minimum design speeds for proposed streets by street type shall be as required in table 16-2. Design exceptions must be justified and approved by the public development director.

Table 16-2
Maximum Grades and Minimum Design Speeds

Street Type	Maximum Grade	Minimum Design Speed
Arterial street	6%	55 mph
Major collector street	6%	45 mph
Minor collector street	8%	35 mph
Local street	12%	25 mph
Access street, private	12%	25 mph
Alleys	Varies	Varies

 

(Ord. No. 17-003 , § 1, 10-2-2017)