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MnDOT Access Management Manual <br />Table 3.1 - Summary of Recommended Street Spacing for IRCs <br />Category <br />Area or <br />Facility Type <br />Typical <br />Functional <br />Class <br />Public Street Spacing <br />Signal Spacing <br />Primary <br />Full -Movement <br />Intersection <br />Secondary <br />Intersection <br />1 High Priority Interregional Corridors & Interstate <br />System (IRCs) <br />1 F <br />Interstate Freeway <br />Principal <br />Arterials <br />Interchange <br />Access Only <br />1AF <br />Non -Interstate <br />Freeway <br />Interchange <br />(see Section 3.2.7 <br />Access Only <br />for interim spacing) <br />See Section 3.2.5 for <br />Signalization on <br />Interregional Corridors <br />1A <br />Rural <br />1 mile <br />1/2 mile <br />1 B <br />Urban/Urbanizing <br />1/2 mile <br />1/4 mile <br />1 C <br />Urban Core <br />300-660 feet dependent <br />upon block length <br />2 Medium Priority Interregional Corridors <br />2AF <br />Non -Interstate <br />Freeway <br />Principal <br />Arterials <br />Interchange <br />(See Section 3.2.7 <br />Access Only <br />for interim spacing) <br />See Section 3.2.5 for <br />Signalization on <br />Interregional Corridors <br />2A <br />Rural <br />1 mile <br />1/2 mile <br />2B <br />Urban/Urbanizing <br />1/2 mile <br />1/4 mile <br />2C <br />Urban Core <br />300-660 feet, dependent upon block length <br />1/4 mile <br />3 <br />Regional Corridors <br />3AF <br />Non -Interstate <br />Freeway <br />Principal and <br />Minor Arterials <br />Interchange Access Only <br />(see Section 3.2.7 for interim spacing) <br />Interim <br />3A <br />Rural <br />1 mile <br />1/2 mile <br />See Section 3.2.5 <br />3B <br />Urban/Urbanizing <br />1/2 mile <br />1/4 mile <br />1/2 mile <br />3C <br />Urban Core <br />300-660 feet, dependent upon block length <br />1/4 mile <br />Chapter X— Transportation (DRAFT) <br />Page X-16 <br />Adopted XXXXXXX XX, 2017 <br />