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J .- 1101688 . . June 28, 1965 UNITE;]) STATE::; DEPARTMENT OF AGRICULTURE ":-( SOIL CONSERVATION SERVICE-i COLORADO Storms of June 16 and 17. 1965 in Watershed Projects During the week of June 14, 1965 cloudbursts exceeding estimated 100 year frequencies were received on three watershed projects in eastern Colorado as a part of the pattern of rainfall which covered a major portion of eastern Colorado that week. The three projects receiving such rainfall are listed together with a summary of precipitation received. Project Precipitation Kiowa 5:00 to 8:00 p.m., June 17, 1965 from 3 to 9 inches - intensity 4-5 inches in 3 hours Franktown-Parker 3:30 p.m. to 12:00 p.m., June 16.1965 from 7 to 12 inches principally on areas above three structures - intensity about 5 inches in 2~ hours Big Sandy 1:30 p.m. to 7:30 p.m., June 17 8 inches principally on areas above R8l1lah, 8-1 and N-5 dams - intensity about 8 inches in 3~ hours Narrative covering the three projects follows: Kiowa Of 60 floodwater retarding structures, 30 were filled to capacity and flowed through emergency spillways as much as 3~ feet in depth. Stream discharge at the Kiowa bridge was about 30,000 c.f.s. Five of the retarding structures were damaged in an estimated ~500 to $1000 amount. Some 26 farms received flood damage (including 4 farmsteads) totaling an amount of $35,200. Other agricultural damages are estimated at $18,300. One mile of county road and ~ mile of State highway was damaged, one bridge was washed out and 5 damaged. There was a good grass cover on the land and terraces and stock water dams held up well. This storm was considered by local people to approach the extremely severe storm of 1935 which took 7 lives and caused property damage in excess of $2,000,000, including abffildonment of a branch line of the Colorado and Southern Railroad. As a result of the storm of June 17 some $53,500 of agricultural damage was done and non-agricultural damage of $18,500 totaling $72,000.