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Home My WebLink About*Other - Public Works1/1 Grant County Department of Public Works 124 Enterprise St. S.E. Ephrata, WA 98823 To: Honorable Grant County Board of County Commissioners From: Dave Bren, PE, MSCE County Road Engineer Date: June 15, 2022 Re: Potato Hill Road Petition to Reduce Speed Limit for ATV Use Regional Planning vs. Engineering Need ATV Loop for the Moses Lake Sand Dunes Park Serial No. 22.065 Legislative History: Financial Impact: • First Presentation: a June 28, 2022 j • Signage, Gates, & Guardrail: $ 60,000 • Second Presentation: • Dunes Wire Fencing: $ 40,000 • Action Reauested• � Discussion O�tt;ra}�'9Y\Li� x SC•r'is�,,yy� <i�.ks fa1�R l�t�.Y. ��: �• "-..,y.'ee�S�It •t �yi�f'. S�.a�-S:.S,t'L..Li. �_...; i.��Lq.�:i'f.;tiLii?�r*..itti w\-j��_s.�y��•�xd:'c�S.�.'z�iis, ;,4q-��5.r.4i4t,��%e.1�i`J"`'fi_Yr Cjt�t1.� i Y'fi{t �orr i';.*c'� T`�' P:-lg .;"yti 3 .�4�`.1„T kifnq,t ty -�"et �^_rt,',{; ,in� ,: Yc21. t Overview The County has received a speed limit reduction petition to provide for All Terrain Vehicle (ATV) traffic on Potato Hill Road (Attachment A). The County has conducted an Engineering Assessment in consideration of the petition (Attachment B). Engineering Assessment: The engineering assessment found that there is no engineering justification for lowering the speed limit on Potato Hill Road based on MUTCD criteria as follows: • Speed Study Findings • Collision History • Pedestrian and Bicycle Use • Resident Feedback Against Reduction • Site Visit Findings "To rne�et current. and, future: need's, zarving to et( e.r with public and private entities, white: fosteeringa. razpaG�tlf..an'. Suacessful work environment," c iformati ...... 509 754-60V Dave SIen' PE, to[Inty Reed;:ngineer...,.._..._.......Eltt. E# Li;'ti't 'r ttj3 t 'i r� l t_T� �_.,.._.._�......_�...�..,_...EXt.3540 FAX......................_......._......_...,......._...,_......_.., ` 75 6087 13ob B-ersant, Construction. Engineer... 3503 Mike E -Mail- ............... pttbRcwork5fgr!antcotilnty%wa. ov LOC 0111r;�c��untan:t L�a�.-..._..__...._..,_,....-_........ ....Zxt.3555 John. Brissey, su e�rviSDr-D4st r1o. �.........w.__._... P� ._._._.Fact. 41. Seib nastro, Public Works 3,504 Rod Follett, Forem an -Sign John Spiess, S u pewiso r -Central $hop__......_(5oq) �4-B0BB Samuel Dart, Assistant Director:...__.,_................:Ext.3519 Jason callings, Solid Waste.......___ ...., .�50�� T54-4319 An rvb-or ,........, _,..................... �� Booth, H�r-�i�kge Supe.Ea€t 8535. Regional Planning Assessment: The engineering assessment provides a roadway level analysis, however, in this case, there is also a larger regional planning level assessment that should be considered. During the summer months, upwards of 5,000 people per weekend visit the Moses Lake Sand Dunes Park for ATV recreation. There is an Economic Interest, Inter -Agency Interest, and Public Interest for an ATV Loop running from the City of Moses Lake via Sand Dunes Road and looping back via Potato Hill Road. Based on the following: • 5,000 Summer ATV Visitors per Week (Economic) • Complete the Sand Dunes Road to Potato Hill Road ATV Loop • City of Moses Lake ATV Ordinance Planning (Inter -Agency) • State Parks Protection of Critical Lands with Road Corridor Improvements (Inter -Agency) • Ongoing Petitions Unless the ATV Loop is complete, there is limited Regional Benefit. Therefore, both Sand Dunes Road and Potato Hill Road should be conducted together or not at all. Fiscal and Policy Implications Improvements to the ATV Loop will need to be conducted to gain support from State Parks and the Department of Fish and Wildlife for ATV access through critical wildlife areas of the State Park. These are areas where ATV traffic is not allowed. In short, wire fencing, gates, and guardrail will need to be installed. The $100,000 in funding for the project has not been budgeted. In addition, these ATV related improvements are not required for the road to be functional for cars, as it is already in operation. These improvements are only required to allow ATV access through critical wildlife areas of the State Park. In short, these are not County Road Fund improvements. Therefore, specialized public/private funding will be necessary. Commission Packet Attachment A. Petition for ATV Speed Reduction on Potato Hill Road B. Engineering Assessment Memorandum Action Requested Public Works Staff recommends not proceeding on the Potato Hill petition, unless the Sand Dunes Road is included, as there is a Regional Planning Justification for an ATV Loop, but not an Engineering Justification for the reduction in speed. An ATV Loop would be a Regional Improvement and has economic, intra -agency, and public interest. In addition, specialized funding will have to be considered for the ATV Loop project, as it is not a County Road Fund improvement. Public Works requests only a first reading at this time, with review comments, and an open discussion regarding an ATV Loop. Public Works will then update as needed and a bring back to the Board for a Public Hearing at a later date. "To meet current and, lure needs, serving together with publio and priVate entities.. While f05'.-ri t9 a rePeGt Ul and st.iGoeSsfUi work environment." 754-6082 Dave Bran, PEr cotinty Road Ertginaar.._......._.....,.Ext. S5o2 Ed tri#ry, Sti rvisor-Di,t_ No - _M4_6087 Bob laersant, Constrtiction Mike T 7rolio, SttparviOr- iSt. No. S591 E-mail. - ------------ - - - - ptih>•icwor !; grantcottribpfva..gov Loc Ohl Accotintant Lead.......Ext. 3555 John Briss ey., Stiper05or-Dist No. 3._ ....... ................ Ext4 BS 1 Sam Gastro, Pab is Works Director..__...._ _.....r.Ext..B504 Rod Follett, Forem: an -Sign Shop.,..,..,.__..................Ext. 3576 .john Spur Stiparvisar-c:antral shop____(509) 754-6086 Saratiel dart, A»iStant Ext -3519 Jason Collings, Solid Wante._. ............. ._...... (509) 754.4.319 Andy Booth, Bridge ....... .... ..... .....Ext X585