2017-09-11-minutes-public-works-study-session

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SCAPS� . TO i t G,1ig K=TAS COUNTY THOSE PRESENT: DEPARTMENT OF PUBLIC WORKS Mark Cook, Director STUDY SESSION MINUTES September 11, 2017 Paul Jewell, Laura Osiadacz, Obie O'Brien (BOCC); Mark Cook, Candie Leader (DPW) **A Moment of Silence was held for the Anniversary of the 9111 Attacks** LIMIT HEA VY TR UCK TRAFFIC BYPASSING I-90 DISCUSSION. Mark stated that staff is offering to prepare legislation to hinder heavy truck traffic that is bypassing I-90 during construction and slow downs. He continued that the roads in the area are not designed for this volume of truck traffic. Mark suggested that the Board of County Commissioners consider utilizing the Revised Code of Washington specifically Chapter 46.44.080 and declare that certain types of vehicles are restricted on certain county roads. He continued that pursuant to RCW 36.75.270, a person violating a resolution that restricts certain classes of vehicles is guilty of a misdemeanor. Staff is suggesting closing the road network to certain classes of vehicles at Thorp Prairie Road (Exit 93) to Nelson Siding Road (Exit 74), covering the entire route that is being utilized as a detour to 1-90. This action by resolution was previously used for the load restriction on the Manastash Road Bridge. Discussion was held as to classes of vehicles, the weight of each and if local delivery only is an option to consider as well. Board Direction: Bring forward a draft Resolution for review at the October 9, 2017 Study Session. NELSON SIDING ROAD DRAINAGE IMPROVEMENTS : Mark stated that since 2013 Public Works has been working with a resident on Nelson Siding Road at Old Cedars Road regarding high ground water flooding. The development there is not mapped as a being in floodplain and/or wetland; however, it has been historically wet in the spring and into the summer. The flows get backed up because of the John Wayne Trail causing a large wetland complex downstream from Nelson Siding Road. The issue for Public Works is how to manage the expectations of the residents who have built in the low lying area. Several years back, Public Works enlarged the road side ditch network in the vicinity of Old Cedars Road, however, the issue is that the topography is very flat and the KRD delivery canal crosses under Nelson Siding Road about 500 yards from the residence in question. Staff replaced the culvert with a 6-8 foot plate arch culvert and the surface water there is actually higher than the bottom of the road side ditch; and between the irrigation canal and the ditch there is a pond that the residents use for irrigation purposes. Mark continued that staff went out and collected survey 411 N. Ruby, Suite #1 Ellensburg, WA 98926 TEL FAX (509)962-7523 (509) 962-7663