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KITTITAS COUNTY <br />DEPARTMENT OF PUBLIC WORKS <br />PUBLIC WORKS — BOARD OF COUNTY COMMISSIONERS <br />STUDY SESSION STAFF REPORT <br />STUDY SESSION DATE: September 23, 2024 <br />TOPIC: Upper County Non -Holiday Weekend Speed <br />Study Results <br />ACTION REQUESTED: No Action required <br />LEAD STAFF: <br />Cameron Curtis <br />RECOMMENDATION: <br />No Action Required <br />BRIEFING SUMMARY: <br />• Public Works deployed traffic tubes on Westside Rd (MP 2.30), Mohar Rd (MP <br />0.37), Nelson Siding Rd (MP 0.81), and Bullfrog Rd (MP 0.05). <br />• Traffic Tubes on Bullfrog Road were dislodged or tampered with over the <br />Weekend potentially skewing data on Bullfrog Road. <br />• The speed study was conducted from August 15, 2024 to August 23, 2024. <br />• Average daily traffic (ADT) was found to be as follows: <br />Road Name(Holiday <br />Highest Daily <br />Volume <br />Week) <br />Highest Daily <br />Volume (Non- <br />Holiday Week) <br />Typical Week <br />ADT(Non-Holiday <br />Percent Increase <br />to Holiday) <br />Westside Rd <br />4109 <br />Sunda <br />2461 <br />Sunda <br />1709(Monday <br />- Thursday) <br />66.96% <br />Mohar Rd <br />1938 <br />(Sunday) <br />780 <br />Sunda <br />241(Monday <br />- Thursday) <br />148.46% <br />Nelson Siding Rd <br />5527 <br />Sunda <br />3689 <br />(Sunday) <br />783(Monday <br />- Thursday) <br />49.82% <br />Bullfrog Rd* <br />1 6047 <br />1 (Friday) <br />1 5887(Friday) <br />3687(Monday <br />- Thursday) <br />2.72% <br />• 85% speed was found to be as follows: <br />Road Name <br />Holiday Week 85th <br />Percentile Speed <br />(MPH) <br />Study Week 85th <br />Percentile Speed <br />(MPH) <br />Typical Week 85th <br />Percentile Speed <br />(MPH) <br />Posted Speed (MPH) <br />Westside Rd <br />46.05 <br />43.45 <br />40.45 <br />35 <br />Mohar Rd <br />42.25 <br />43.50 <br />36.50 <br />35 <br />Nelson Siding Rd <br />45.80 <br />48.60 <br />41.10 <br />35 <br />Bullfrog Rd <br />50.50 <br />43.85 <br />51.50 <br />35 <br />