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<br />TABU: OF CO"'TE.'>iTS PA<a:;>,O. <br /> EXECUTIVE SUM,'vlARY ES-l <br /> Ir"iTRODlCTIO'" <br /> A. Authorization [-I <br /> B Purpose and Scope [-, <br /> C Basclinelnfarmatian 1-[ <br /> 0 Design Procedures 1-[ <br />[J STlOY AREA <br /> A Location II.) <br /> B. Catchments 11-) <br /> C Flood History 11-) <br />! D Land Characteristics II.) <br />E. Land Use 11.)0 <br />III. HYDROLOGIC .\oIODEL <br /> A. General IlI-1 <br /> R unSWI\f and CUHPF Parameters Ill-I <br /> C Calibration 1I1-2 <br /> D. Detention Areas 1ll-2 <br /> E. Irrigation Facilities 1IJ.4 <br /> F Off-Site Catchments 111-4 <br /> G Results 111.4 <br /> H Drainage Problem Areas fII.)O <br />[V ALTER:'I'ATf: DRAII'iAGE IMPRO\'F::\1TJliT EVALlJATIOJli <br /> A General [Vol <br /> B DesignStrakgy Recommendations [Y_3 <br /> [ CityofLafaycttc [V.] <br /> 2. Open Space [V-3 <br /> ). EriePlan.n.ingArea IV.) <br /> C AltcrfiatcAnalysis IV-3 <br /> D Limitations rV-4 <br /> E Results IV_4 <br /> 1 Coal Creek Tributaries IV_4 <br /> 2. Bullhead GulchiPnnce Tributary IV-i <br /> 3 BoulderCrcekTributaries IV_8 <br /> F. Alternale Cosl Estimates IV.8 <br /> 1. Regional DetcntianFacilities IV.9 <br /> 2. Conveyance Faeilities IY-9 <br /> - Raadand RailroadCrossrngs [V-'! <br /> -' <br /> 4 Irrigation Facilities [V-'I <br /> 5 Summa!y IV-') <br /> 6 Annualized:>'faintcnanceCostFstimales IV-:!1 <br />V P;GL'EER'S RrCO:\I:\n:;-';DATlO)\ \'.1 <br />V[ IU:FERE:-iCES REF-l <br /> <br />TA8LES <br /> <br />1 <br /> <br />, <br />" <br /> <br />J <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />[J <br />12 <br />lJ <br />14 <br />15 <br />16 <br />" <br />18 <br />19 <br />20 <br /> <br />FIGURES <br /> <br />1 <br />2 a-c <br />J <br />4 <br />5 a-b <br />6 a-b <br />i a-h <br />8 <br />o <br />'0 <br />l1a-b <br /> <br />Existing and Proposed Dcvelapment\, :\1arch2000 <br />Precipitation Distribution for UDS\V~1 <br />Soil Parameters <br />Pereent Impervious for Land Uses in Study Area <br />Typical Conveyance Element Parameter, <br />Flood Peak Calibration, lJDSWM to CClIPF <br />lnigatioobcilities <br />Dcsign Poim Flood Peaks, Existing Percent Impef\liousness <br />Design Point Flood Peaks. Future Percent Imperviousness <br />Drainage Concerns Within the Study Area <br />Advantages and Disadvantages OfSlOrmwater Control Elements <br />Drainage Design Guideline, for Erie Planning Area <br />Flood Peak Discharge Comparison: E"isting, Future, and Alternates <br />Regional Detention Facility Cost Estimates <br />Conveyance Facility Cost Estimates <br />Road and Railroad Crossing Cost Estimates <br />lniga!ionFaci]ityCostEstimates <br />Alternate Cost Estimate Summary <br />CnitCost and Percentage Data <br />Summary of Annualized \faintenance Ca,t Estimates <br /> <br />Location Map <br />Catchment Delineation and SV,1\.1:Vl El~ments in the Study Area <br />Offsite Catchment Delin~ation and S\VMM Ekm~nts <br />Wctlands,Floadplains. and Calibration Basins <br />Hydrologic Soil Groups <br />Existing Percent Impervious <br />FuturePercentlmperviaus <br />CalibrationHydrographs.l00-YesrEvent <br />Irrigation Facilities <br />Hydrograph Comparison at Se[ccted Design l'oints <br />I'roposed Drainage Facilities <br /> <br />'\PPFJ.;I)IO:S <br /> <br />..\ Hydrologic \fodel~ and UDSV\'M Flow Charts <br />B Cam:spomknce <br />C l-leetiog\linutes <br />D LegalOpiniun <br /> <br />PAGF,',O. <br /> <br />11.10 <br />III-I <br />111-1 <br />111.1 <br />1ll-2 <br />111-:! <br />111-4 <br />111-7 <br />I11-8 <br />lII.jO <br />IY-) <br />jV-3 <br />IY.7 <br />1V-]0 <br />!V-12 <br />IV-16 <br />IV-19 <br />IV.20 <br />IV.2] <br />[V-21 <br /> <br />PAG[~O. <br /> <br />11-2 <br />11-3thru.1l-S <br />[J-b <br />[]-i <br />11_8thru[[_9 <br />11-11 thru 11-12 <br />ll-Bthrull-14 <br />1Il-3 <br />111-5 <br />\II-to <br />iV_5thrulV.6 <br /> <br />TOC-[ <br />