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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: August 12, 2024 <br />TOPIC: Upper County Holiday Weekend Speed Study <br />Results <br />ACTION REQUESTED: No Action Required <br />LEAD STAFF: <br />Josh Fredrickson <br />RECOMMENDATION: <br />No Action Required <br />BRIEFING SUMMARY: <br />• Public Works deployed traffic tubes on Westside Rd (MP 0.37), Mohar Rd (MP <br />0.22), Nelson Siding Rd (MP 0.62), and Bullfrog Rd (MP 0.23). <br />• Traffic tubes on Bullfrog Road were dislodged or tampered with over the Holiday <br />Weekend potentially skewing data on Bullfrog Road. <br />• The speed study was conducted from July 2, 2024 to July 10, 2024. <br />• Average daily traffic (ADT) was found to be as follows: <br />Road Name <br />Holiday Week <br />ADT <br />Highest <br />Holiday Daily <br />Volume <br />Typical Week <br />ADT <br />Percent Increase <br />(Co m ared to Highest Daily Volume) <br />Westside Rd <br />1885 <br />4109 <br />1709 <br />140.43% <br />Mohar Rd <br />461 <br />1938 <br />241 <br />704.15% <br />Nelson Siding Rd <br />1415 <br />1 5327 <br />1 783 <br />1 580.33% <br />13 og Rd* <br />1 3864 <br />1 6047 <br />1 3687 <br />1 64.01% <br />• 85% speed was found to be as follows: <br />Road Name <br />Holiday Week 85th <br />Percentile Speed <br />MPH <br />Typical Week 85th <br />Percentile Speed MPH <br />Posted Speed MPH <br />Westside Rd <br />46.05 <br />40.45 <br />35 <br />Mohar Rd <br />42.25 <br />36.50 <br />35 <br />Nelson Siding Rd <br />45.80 <br />41.10 <br />35 <br />Bullfrog Rd <br />50.50 <br />51.50 <br />35 <br />