§ 82-190. Street classification.

Road Class Chart

Class	R/W Width	Surf Width	Shoulder Width	Base Depth	Paving Thickness	Min C/L Radius	Max Grade	Sight Distance	CO/PRIV	Ownership
A	60'	24'	6'	8"	2"+ 1 ½	400'	12 %	500'	CO	Fee
B	60'	20'	4'	6"	2"	100'	16 %	200'	CO	Fee
C	50'	20'	3'	5"	2"	50'	18 %	200'	PRIV	Fee or Easement
D	40'	18'	2'	4"	0	40'	18 %	150'	PRIV	Fee or Easement
E	30'	14'	2'	4"	0	40'	18 %	150'	PRIV	Fee or Easement

 

(a)

Suitable for high traffic volumes and is to be used for arterial and collector or type general roads, and for all new commercial or industrial developments. Paving specifications are eight inches graded aggregate base ("Base") with two inches of binder, topped with one and one-half inch asphalt. Class A roads are eligible for dedication to the county.

(b)

New county dedicated roads within residential subdivisions. Paving specifications are six inch base topped with two inch asphalt. Class B roads are eligible for dedication to the county.

(c)

New residential subdivision roads that are to be privately maintained where the minimum lot size is less than 3.0 acres (not including road r/w). Paving specifications are five inch base topped with two inch asphalt. Class C roads must be privately maintained. Maximum road slope may exceed 18 percent to a maximum of 20 percent for no further than 400 feet per quarter mile.

(d)

New residential subdivision roads that are to be privately maintained where the minimum lot size is 3.0 acres (not including road r/w) or within agricultural zoned greenspace developments. Maximum road slope may exceed 18.0 percent to a maximum of 20 percent for no further than 400 feet per quarter mile. For all areas greater than 18.0 percent, paving shall be required to extend from 400 feet before the grade reaches 18.0 percent and extend through the area that is greater than 18.0 percent to a point that is 400 feet beyond the extent of the road that is greater than 18.0 percent.

(e)

New residential subdivision roads that are to be privately maintained where the minimum lot size is 5.0 acres (not including road r/w), and that serve no more than ten lots. Maximum road slope may exceed 18.0 percent to a maximum of 20 percent for no further than 400 feet per quarter mile. For all areas greater than 18.0 percent, paving shall be required to extend from 400 feet before the grade reaches 18.0 percent and extend through the area that is greater than 18.0 percent to a point that is 400 feet beyond the extent of the road that is greater than 18.0 percent.

(Ord. of 3-27-2003(5), § 3.518; Ord. of 5-13-2004(4), § 3.518; Res. No. 06-47, 3-8-2006; Res. No. 06-190, §§ m, n, 11-9-2006; Res. No. 10-006, 1-28-2010)