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39 LOCAL STATE-AID ROUTE STANDARDS,FINANCING 8820.9946 <br /> those indicated in the chart require a variance in accordance with parts 8820.3300 and <br /> 8820.3400. <br /> (a)Permissible for present traffic volumes less than 15,000 ADT. <br /> (b)When ADT is less than 5,000, seven tons is allowable. <br /> (c)No parking is allowed. <br /> When a median is included in the design of the two-way roadway,a one-foot reaction <br /> distance to the median is required on either side of the median. Minimum median width is <br /> four feet. <br /> For ADT less than 150,the widths of bridges to remain must be at least the sum of the <br /> lanes. For ADT greater than or equal to 150, the widths of bridges to remain must be at <br /> least the sum of the lanes plus half the sum of the shoulders,parking lane,and curb reaction <br /> distance. <br /> Subp. 2. One-way streets. In the following design chart,total width is from face-to- <br /> face of curbs. <br /> Reconditioning projects for one-way urban roadways must meet or exceed the mini- <br /> mum dimensions indicated in the chart. <br /> Number of Present ADT Total Width Total Width Total Width Proposed <br /> Through Lanes with No with Parking with Parking Structural <br /> and Functional Parking on One Side on Both Sides Design <br /> Class Strength <br /> (feet) (feet) (feet) (tons) <br /> 2-Lane <5000 21 29 37 7 <br /> Collector or <br /> Local with <br /> ADT< 10000 <br /> 5000-10000 23 31 39 9 <br /> 2-Lane < 15000 23 31 39 9 <br /> Collector or <br /> Local with <br /> ADT > 10000 <br /> or 2-lane <br /> Arterial <br /> > 15000 24 32 40 9 <br /> 3-Lane Arterial All 34 42 50 9 <br /> or Collector <br /> For ADT less than 150,the widths of bridges to remain must be at least the sum of the <br /> lanes. For ADT greater than or equal to 150, the widths of bridges to remain must be at <br /> least the sum of the lanes plus half the sum of the shoulders,parking lane,and curb reaction <br /> distance. <br /> Subp. 3. Exception. Any street that was previously built to state-aid or state standards, <br /> that was granted a variance to standards in effect at the time of construction or reconstruc- <br /> tion, or that is a trunk highway turnback, but does not meet current standards, may be <br /> reconditioned regardless of subparts 1 and 2. <br /> Statutory Authority: MS s 14.386,• 14.389; 162.02; 162.09 <br /> History: 20 SR 1041; 23 SR 1455; 24 SR 1885; 29 SR 449; 36 SR 925;37 SR 697 <br />