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0006(l4 CHRONOLOGY OF EVENTS Both the city and county of Alamosa undertook a cooperative, full-scale effort in their flood fight. A summary of the sequence of events is as follows: June B, 1985 ,__---We_were notj.fie~Lby_Diyj s tOD--9ila terResour,ces.-engioeer and Co.lorado.Sj;at~ Patrol of levee erosion on the north bank across from the gauging station and warned of impending run-off upstream. (Please see enclosed map, site #2.) /' I ~ Enclosure not attached J June 9, 1985 Monitored erosion on North bank (site #2). Were notified by Colorado State Patrol of breach of levee northwest of Monte Vista, Colorado. Were warned that this water would be reaching Alamosa within 24-36 hours. Del Norte had 9,000 cfs. June 10, 1985 City and county crews were dispatched to problem site #2. Approximately sixty (60) dump truck loads of concrete and other material were used to stabilize the bank. That evening, another area of the levee system was jeopardized by undercutting and erosion (site #1). City and county crews worked until 2:00 AM, without success, in trying to control this problem. The levee was monitored throughout the night. The city purchased 10,000 sandbags. DODES transported another 10,000 sandbags from Salida, Colorado. June 11, 1985 City and county crews continued to work' at site #2. At 1:30 PM, an emergency response meeting was held and attended by all available state and local government officials. Progress was slow in addressing the problem at site #2. A contractor was hired to complete the job. Problems were developing with debris collecting at the Railroad tressel. Levee watch program was organized, using community volunteers. The river continued to rise. By dark, the situation at site #2 had not yet been adequately addressed. City crews were called back in. Received reports of the river J leaving its banks northwest of the city in unincorporated Alamosa County. The Army Corp of Engineers had also reported serious and dangerous seepage along the levee system adjacent to Cole Park, site #3. Sheriff's deputies l investigated the overflow northwest of the city and concluded that the water was spilling into an old ox-bow lake and returning to the river with minimal flooding. The Mayor of Alamosa declared an emergency and mobilized , private contractors to construct a secondary levee in order to control the seepage problem at Cole Park (site #3). Many hours' and dollars were spent to battle the failing levee system and insure the safety of the residents of the city and county of Alamosa.