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. - f- oetelt10n Pond :~" . I . '. , , . , , , , , '=~ ..--..-- ;', " 'I , k Cne :lode :> l SERVICE AREAS ""1'1'1 SERVICE AREAS THAT DRAIN 8,1:'! INTO PIONEER DRAINAGE DITCH - ,,- I SERVICE AREAS THAT DRAIN ~ ! INTO THE SOUTH PLATTE RIVt:R Ser~ice Area No.2 If the improvel"l!nts In Service Area No. 1 were made, thestOrnl sewer system that presently exists in area 2 would handle storm runof f more efficiently provided that the Sterling No.2 ditch crossing in the Sugar Factory Drainage Ditch were replaced. The damaged culverts at this location do not have capacitIes sufficient to handle storm flow discharges (rom the 27-inch and 48-1nch ovtfalls upstream. The backwater created by this bottleneck reduces hydraulic efficiency and contributes to sedimentation problems. Also, the entire sugar FactoryOralnageDltcllshouldberoutinelyc1edredofsedlment,weeds, and other debris. Suchmalntenancei'louldlmprovetheabi1ityofthe ditch toconveystonnrunofffromArea2to the river. Servlce Area No.3 In addition to tile 54.1nchoutfall Jinewhich now serves the downtoi'ln area, HOSkins and Associates (1957) recommended additlona1 sewers in order to dispose of the excess in~pipe loading. These relief lines hdvenotbe<>n instdl1ed. The additional lines would include a 3D-inch reinforced concrete relief pipe on Ash Street fromOivlsion';venue to Soutll Thlrd Stree t and a 48-fnch reinforced concrete plpe from Third Street to South Second Street on Ash. Asthesystemisnowconstructed,theAshstreetrellef line could be tied Into the 54-fnch outfall by d 48-inch reinforced concrete pipe on South Second Street between Ash and Main Streets. a 48- ;nch pipe on Main between So~th Second and Front, and a 48~ inch pipe on Front between Main and the 48-inch stub on then'ldnho1eat the outfall. Sufficient inlet capacity should be provided to lntercept excess runoff from the downtown buslness distrfct. Service Area No.4 Stann ~Jnaff generated from Service Area No. : currently ls servlced by the 4Z.inch outfall north of the fair Shooplnq Center. ~~S identiij 1 ~evel opment. the shoppi nq center. ~lo..theastern Junior College, and Be~f Pl~nt havp ov~~1o~rl~d to1s outf~11. 101