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" "' The combined total coat of the recommended improvement plans is estimated to be 1.4 million dollars (Western ~lQW Path $206,000, Lola park ~ibutary $775,000, Eastern Flow path $401,000). Of this amount, $577,000 1s the cost of street improvements which the Town of Milliken intends to do so the net Tabl~ 22. Drainage Improvement Implementation priorities. cost of drainage improvements is about $800,000. plan Implementation Implementation of the reoOMmended plans ahould be carried out in 8S deliberate manner 88 financing allows. An implementation plan has been de- veloped which assign priorities to the recommended improvements and phases the construction of the improvements. The cost of each stage of construction 1s shown 1n Table 22. If a plan must be completed 1n its entirety in order to 80lve the problem it should not be started unless it has been entirely funded. It is imperative that final design and construotion supervision be carried out !'riortty , , I , I I I , , Deaoription EsUlNltsdCost Lola !'ark ~ibutary Alternative B4, tire station pond to the Little 'r'nolllpson River Eastern rlow !'ath Alternativs 2, Big Thompson River to union i>I1cifio R<lilroad Lola park Tributary Alternat1ve A4, Lola park to ths fire atation pond Western Flow path Altsrnative 4, weat of Milliken Elementary School to Highway 60 by a compstent engineering firm. priority must be givsn to improvernents in the areas experiencing the ~st damage. Damage assessment in Chapter V conoluded that 1n Milliken the Lola park Tributary is the most destructive. Hydraulic analysis showed that the "~~ $1,364,000 primary obstruction to flow was the Highway 60 embankment. The Reach B alter- nati"es, whichincludedaolutiona to ponding behind the Ilighway 60 emban kment, are also therooat coet effective (Tabl" 21). tt is recOl1IJnended that Alternati"" E4 be implemented first. As a temporary solution, construction could be planned 1n two phases. The first stage would build the structures necessary to convey flood ~ater from the fire station pond to the Great Western R4ilroad pond. A JO-inch culvert presently provides drainage through the Great Western Railroad embankment. This alone would not be edequate to accomodate the volume of water that would diaeharge into the pond follo~in9 an intense storm. Some storm water would be baeked into the Thompson and ~latte Ditch but since most runoff presently nrains from tnwn via the ditCh, p~blems dlong the Thompson and Platte Ditch downstream of Milliken would not worsen. The second stage of Atlernativ" 84 should follow as eoon ae possible tOlOOvewater frorn the Gres t Western Railroad pond to the ~ttle Thompson River. $ 237,000 401,000 538,000 206.000