[Ord. No. 06-08 Part P, 3-23-2006; Ord. No. 06-11 Part P, 5-4-2006; Ord. No. 06-14 Part P, 7-13-2006; Ord. No. 07-01 Part P, 2-1-2007; Ord. No. 07-02 Part P, 3-15-2007; Ord. No. 08-03 Part P, 7-1-2008; Ord. No. 08-05 Part P, 10-2-2008; Ord. No. 18-03, 11-29-2018]
A. 
Before recording of a plat a road bond must be presented to Cass County at cost established by Road and Bridge Department.
B. 
All internal subdivision roads must be six (6) inch asphalt in three (3) lifts and completed by two (2) years, then a maintenance bond of thirty percent (30%) of the construction costs are to be posted until sixty percent (60%) of the lots have houses constructed on them.
C. 
Roadbed must have five (5) inches of crushed rock, compacted once at three (3) inches and again at two (2) inches on road surface. Must water between lifts. Six (6) inches of asphalt: four (4) inch base and two (2) inch surface put in at two (2) inch lifts. Copy of all rock and asphalt tickets to Road and Bridge Department before approval of road surface.
D. 
Road and Bridge Department must inspect roadbed before rock is placed and before asphalt is laid.
E. 
No roadbed lift of over eight (8) inches at one time.
Right-of-way width
60 feet
Roadway width (shoulder to shoulder)
28 feet
Roadway width (driving surface)
24 feet
Minimum grade crown
4%/10 inch
Minimum curve radius (centerline)
175 feet
Minimum tangent length between curves
100 feet
Minimum sight distance (4½ feet x 4 inch)
240 feet
Turnaround radius (property line) cul-de-sac
58 feet
Turnaround radius (centerline of roadway) cul-de-sac
50 feet
Center island radius
16 feet
Crown on tangents
8 inches
Depth of ditch (minimum below shoulder)
18 inches
Inslope
3 to 1
Backslope (uniform, minimum)
1½ to 1
Fill slopes
1½ to 1
Cut slopes (minimum)
1½ to 1
Entrance pipes to subdivision length
45 feet x 15 inch
Headwall must not be used
Corrugated metal pipe may be used
45 feet x 15 inch
Smooth steel metal pipe may be used
45 feet x 14 inch
Entrance to housing pipes minimum
30 feet x 15 inch
F. 
All new entrances constructed exiting on County roads, brush is to be removed and ditches established on the entire length of the subdivision right-of-way.