06-10-1985 Council Packet - Laserfiche WebLink

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�J n DEPARTMENT OF TRANSPORTATION Li040 b"Jushington Av. South InHopkins, Minnesota 55343-8468 935-3381 TN 935-6433 June 4, 1985 .AAI - 6 IM Mr. Mark Bernhardson CITY i"C f.,•.j, Administrator Qf •I, .. ��„ 1 City of Orono P. 0. Box 66 Crystal Bay, Minnesota 55323 VARIANCE HEARING CSAH 15 FROM CS 110 TO CSAH 19 COUNTY PROJECT 6 _4 SAP 27-615-13 Dear Mr. Bernhardson The following information is the background submitted by Hennepin County for the variance petition from standards for street width on CSAH 15. CSAH 15 is essentially a 2-lane roadway with a 22 ft. wide concrete base along most of its length. Over the years, various w•idenings, shoulders, and turn lanes have been added as development has taken place. This has resulted in a road varying in width from 24 to 56 ft. In 1983, average daily traffic (adt) ranged from 9,250 to 16,000 vehicles per day (vpd). The year 2000 adt is predicted to range from 12,000 to 18,000 vpd. These values indicate that the road operates as a high density arterial. The State Aid Urban Rules require a 4-lane, high density arterial to be 52 ft. wide when undivided and 68 ft. wide when a 14 ft. median is present. HC/DOT proposes to reconstruct CSAH 15 as a 44 ft. wide roadway and provide by-pass lanes at the major intersections where turning movements are frequent. This will provide road widths of 44, 48 or 52 ft. along different portions of CSAH 15. Approximately between Interlachen Road and Dunwoody Avenue, the number of left turn movements indicate a need for Medians and left turn pockets. Along this portion of CSAH 15, the road width will vary from 62 ft. to 66 ft. Hennepin County is requesting a variance from the Urban State Aid Street Width Standards for the following reasons: 1) The narrower road will allow better driveway grades because It would permit an easier match to existing driveways. HENNEPIN COUNTY