ARSD 70:09:02:0A
DEPARTMENT OF TRANSPORATION
(mile) Median
Opening
Spacing
(mile) Unsignalized
Access Spacing
(feet) Access Density
Denial of
Direct
Access
When Other
Available
N/A
N/A
N/A
N/A
Yes
½
½
2640
at half-mile increments
Yes
Free Flow Urban
½
½ F, ¼ D
1320
at quarter-mile increments
Yes
Intermediate Urban
½
½ F, ¼ D
660
at eighth-mile increments
Yes
Urban Developed
¼
¼
100
2 accesses/block face
Yes
Urban Fringe
¼
½ F, ¼ D
1000
5 accesses/side/mile
Yes
Rural
N/A
N/A
1000
5 accesses/side/mile
Yes
NOTES:
1.
Access to the Interstate system is governed by SDDOT interchange policy. No new
access shall be provided on non-interstate routes within 1/8 mile of interstate ramp
terminals.
2.
N/A = Not Applicable, F = Full Movement – all turns and through movements
provided, D = Directional Only – certain turning and through movements not
provided.
3.
SDDOT may defer to stricter local standards.
4.
SDDOT will seek opportunities to reduce access density wherever possible.
5.
Rural class minimum unsignalized access spacing may be reduced to 660' by the
Area Engineer, based on results of an engineering study as described in § 70:09:02:01.
Access Class Definitions
ACCESS MANAGEMENT
SOUTH DAKOTA ACCESS-LOCATION CRITERIA
Chapter 70:09:02
Appendix A
SEE: 70:09:02:01
South Dakota Access-Location Criteria
Signal
Spacing
Distance
Source: 29 SDR 66, effective November 18, 2002; 29 SDR 177, effective July 1, 2003.