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I 11.G I <br /> CI Tyor PRESCOTT <br /> Ep j H ft tir°a, COUNCIL AGENDA MEMO <br /> MEETING DATE/TYPE: VOTING MEETING 5-14-19 <br /> DEPARTMENT: Public Works <br /> AGENDA,ITEM: Award of City Contract No. 2019-225 to Fann Contracting, Inc. for the <br /> Yavapai Hills Drainage Improvements Project in an amount of $169,444.53. Funding is <br /> available in.the Streets Fund. <br /> FUNDING SOURCE: Streets Fund <br /> Approved By: Michael Lamar, City Manager <br /> Item Summary <br /> This item is to approve City Contract No. 2019-225 with Fann Contracting, .Inc., for the <br /> Yavapai Hills Drainage Improvement Project for work on Hornet Drive to install three <br /> lateral vane grates in the amount of $169,444.53. The location of.the project is shown <br /> on the attached vicinity map. <br /> Background <br /> In. July of 2018, several monsoon storm events occurred within the Yavapai Hills <br /> Subdivision area. During the storms the street drainage capacity was exceeded along <br /> Hornet Drive between Rough Diamond Drive and Sharp Shooter:Way. Storm water <br /> overtopping the edges of the road drained onto .adjacent properties, eroded <br /> landscaping, deposited sediment and drained into some property owner's garages. <br /> The storm on July 15th was an approximate.a 50-year event over a 6 hour period (2.96 <br /> inches per NOAA 14) and the storm on July 16th was an approximate 10-year event <br /> over a 3 hour period (1.92 inches per NOAA 14). <br /> Based on. discussions with dozens of property owners and the Yavapai Hills <br /> Homeowners Association, City staff designed a partial drainage mitigation plan for the <br /> area to install vane grates across Hornet.Drive at three locations. <br /> Additional mitigation measures will be needed in the future to address other undersized <br /> drainage infrastructure for the area. <br /> Procurement <br /> Arizona Department of Administration — State Procurement Office, as set forth under <br /> I Packet Pg.207 I <br />