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