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inundated by the lOO-year storm. Suggested unprovements in this n~ach include flood plain zoning, channelizo:ltiJn ill reaches, placing Fulton Ditch in a syphon under the First Creek ,111(1 pro'\'.i_ding sufficient water- ,,'ay under Brighton Road to pass telle lOO-Y'?J fl,..". Fulton }!.i tch SiJ1.l1~I1 Fulton Ditch carries a disC'har.~e of 2:.)0 efs and \"rill be si-' phoned under the First Creek flood channel by providing a 205 foot long siphon. The ditch siphon will have a sillgJe barrel of size 7.5' w~de by 4.0' height. The inlet and outlet cn(s af the siphon will be riprapped fe)r protectio,a against erosi,on. The ],'i[:~t Cree~, flood channel side slopes will be steepened from 4H:lV to 2H:1V in this r~ach and protected "ith riprap. Brighton Road Culvert The Brighton Road Culved h,s 1",co de:;igne(] to pass the lOO- year flow without overtopping. The existing culvert has to be dismantl- ed ald replaced by a COC with four barre. each 15.0' wide x 9.0' high In size. The invert of the culvf~rt lias l)pp~ lo,~ered to provide the nec- e&sary waterway. Riprap proteeliorJ wjl. b~: provided both upstream and downstream of the culvert as shown. Su:1:alJLe food channel transit.ion will be provieled both on the upstream aflel J')~ns1~ream sides. The ut,j,li- lies crossing the creek at this ],ocalioTI ha"Je te) be relocated. D~."l'. At Station 108+10 a 3.0' high drop wi.!. 1 be provided in the Fi rs., Creek flood channel. The lengtt of Ule drop wi n be 125.0.. The upst:~eam and (Iownstream bed will be ripY.~lpp(~d to protect against ero- S1011, II [-;