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0, " The existing inlets and pipe in Bennet! Avenue west of First Street are adequate and should be left undisturbed. b, The existing outlet pipe from the inlet at First Street ano Dennett Avenue should be connected to the new storm sewer pipe which will begin at First Street and run easterly to Second Street. It is recommended that this pipe be a 42-inch Rep and approximately 550 lineal feet will be required. 14, 15, c, The new 36-inch Rep storm sewer around the courthouse should be connected to the new 42-inch Rep in Bennet! Avenue at First Street. d, The existing inlet~ on Bennett Avenue between First Street and Second Street should be replaced with a 15-foOl long curb opening inlet. 16, Replace the grated inlets at each corner of the Bennett Avenue and Second Street intersection willi radial inlets with a minimum curb opening length of lO-feet. should be installed in the swale on the we~t side of Second Street at Ma~onk Avenue. Existing structure 00. 33 (12-inch collapsed CMP) has no capacity and thercfore is inadequate to convey runofffwm the lO-year design SIO rm. his recommended that this culvert he replaced with an IS-inch CMP with a minimum of2 feet of headwater. Existing structure no. 99 (I2-inch crushed eMP) has no capacity and therefore i~ inadequate to convey runoff associated with the 10-year design storm. It i~ recommended that this culvert he replaced with a 30-inch eMP with a mioirnum headwater depth of4 feet. Existing structure no. 93 (I2-ioch crushed CMP) ha~ 00 capacity and therefore is inadequate to convey runoff associatcd with the lo-ycar design storm. It is recommended that this culvert he replaced with a 24-inch CMP with a minimum headwaterdcpth of3 feet. D. Upper Cripple Creek f. 250 lineal feet of I8-inch RCP storm sewer should be extended westerly in Bennett Avenue from Second Street for connection of improvements associated with the Bennett Avenue streetscape project. Upper Cripple Creek is defined as those portions of the upper Cripple Creek water~hed which are above the confluence of Cripple Creek with the Main Street Trihutary. This confhlence is approximately 600 feet ea~t of the intersection of Fifth Street and Carr Avo::nl.le. Upper Cripple Creek now, throl.lgh lhe northeaslerly portion of the city\ corporate limits. Cripple Creek fin"", thrnllgh a clearl)' defined, undcvelopedchanoe1. Several large diameter cOl1duits have been installed in Cripple Crcek at TOad cros~ing~. Several of the large diameter conduits are undersized and need to he upgraded. The drainage basins in Upper Cripple Creek al~o include ,everal ~mall diameter road crossing culverts, all of which appear tu hc adcql1ately sized:;ndin:lcceptablecondition. The recommendations discussed in Item 11 above result in 3 new pipes intersecting in Bennett Avenue at Second Street. These pipes should be combined in a junction structure and a new 48.inch RCP outfall line with a slope of approximately 5% should be installed from thi~ manhole southerly I.lntilitero,ses Warren Avenue and discharges into the existing draioageway. A shallow drainagcswale shall be con,tructed on each side of Sceond Street (Highway 67) betwcen Dennctt Avenue and Warren Avenue and a new inlet 13. \11.11 VI-12