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<br />North St. Vrain & St. Vrain Creeks <br />Floodplain Update <br /> <br />Town of Lyons <br /> <br />TABLE 7A <br />NORTH ST. VRAIN - ST. VRAIN CREEK BENCHMARK INFORMATION <br /> <br />BM NAME <br /> <br />BRW EL. <br /> <br />SVC9 <br /> <br />5404.20 <br /> <br />BRIDGE <br /> <br />5375.84 <br /> <br />RMl <br /> <br />5367.68 <br /> <br />SVClO <br /> <br />5342.75 <br /> <br />BMl <br /> <br />5335.61 <br /> <br />BM2 <br /> <br />5334.44 <br /> <br />BM3 <br /> <br />5322.59 <br /> <br />BM4 <br /> <br />5316.91 <br /> <br />CLIFF <br /> <br />5305.96 <br /> <br />HEADGATE <br /> <br />5305.28 <br /> <br />GAGING <br />STATION <br /> <br />5296.65 <br /> <br />2410 <br /> <br />5266.73 <br /> <br />A329 <br /> <br />5241.28 <br /> <br />MGVD 29 <br />PUBLISHED <br />EL. <br />5404.20 <br /> <br />DESCRIPTION <br /> <br />Brass Cap near Southeast corner <br />of Bridge at Highway 36 and <br />Apple Valley Road Intersection. <br /> <br />LOCATION <br /> <br />Northwest Wingwall of Bridge <br />over N. St. Vrain Creek, on <br />Highway 38/State Highway 66. <br /> <br />Northwest Wing Wall of Bridge <br />over No. St. Vrain Creek, on <br />Highway 36/State Highway 66. <br /> <br />71' North of Intersection of 5th <br />Ave. & Main St., along West <br />Curb of 5" Ave. <br /> <br />Northwest corner of Bridge <br />Curb on 5th Ave. and N. St. Vrain <br />Creek. <br /> <br />East End of Retaining Wall on <br />South Side of Evans, East of 4th <br />Ave. <br /> <br />Northwest corner of Evans St. <br />and 3rd Ave. <br /> <br />Northeast corner of Sidewalk <br />(cIose to Tele. Ped.) 84' So. Of <br />Evans, on 2nd Ave. <br /> <br />North of Intersection <br />Ave. & Highway 36. <br />Black Bear Inn. <br /> <br />of Park <br />West of <br /> <br />3" Brass Cap Stamped: "0 15 N <br />CDOH Benchmark ST A EL" <br /> <br />5367.54 <br /> <br />3.5" Brass Cap Stamped: US <br />Dept. of Interior Geological <br />Survey 5375 Re-Set 1968" <br /> <br />East side of Highway 36, <br />opposite of Headgate, 5' High <br />on Vertical Cliff. <br />Southeast end of a Wingwall of a <br />Headgate of an Irrigation Canal. <br />Gaging Station on Highway 36 <br /> <br />South side of US Hwy 66/CO <br />Hwy 36, 200' :t West of the <br />Intersection of US Hwy 66/CO <br />Hwy 36. <br />Bridge Abutment <br /> <br />5342.79 <br /> <br />3"Brass Cap Stamped: "U.5. <br />Bureau of Public Roads 1955 <br />5342.24" <br /> <br />Chiseled Square East End of <br />Retaining Wall <br /> <br />Chiseled Square on Top of <br />Concrete Headwall <br /> <br />Chiseled Square on Top of <br />Sidewalk <br /> <br />Chiseled Square on Top of Inlet <br /> <br />5306.22 <br /> <br />3.5" Brass Cap Stamped: "NG5 <br />A411 1984" <br /> <br />5305.56 <br /> <br />Brass Cap Stamped: "Bureau of <br />Reclamation BM 7 53033241936" <br />3.75" Brass Cap Stamped: US <br />Geological Survey Gaging <br />Station Reference Mark" <br />OS' Rounded Rod in Range Box <br />Stamped: "2410 1984" <br /> <br />5241.22 <br /> <br />3.5" Brass Cap Stamped: "US <br />Coast & Geodetic Survey A329 <br />1957" <br /> <br />Floodplain Information Report 33 <br />K\35600\004\FLOODPLAIN INFORMATION REPORT.doc <br /> <br />June 1998 <br />