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I <br /> AVENUE C DRAINAGE IMPROVEMENTS <br /> I FOR THE CITY OF CARRABELLE <br /> . - t <br /> HIGHLIGHTS: <br /> I . Engineering planning, design and permitting ■ Localized flooding relief <br /> - ■ Replaced dry detention with wet detention ■ 27.5-acre urbanized treatment area <br /> ■ Bid and construction phase services ■ Grant assistance <br /> ■ Sediment control ■ Ecological services ' <br /> I The City of Carrabelle experienced chronic problems with sediment Pill � , <br /> buildupleadingto obstruction of a cross-drain under Avenue C, and ` � <br /> j --di <br /> associated localized flooding problems in a fully developed urban -A,6,-±4§.- .' �„ :W f, I/ <br /> I watershed. The problem was made worse by the fact that the cross- ,, „_ <br /> drain was located within FEMA's designated 100-year floodplain. - -C % s. 45',- f <br /> rICATI 1,:i <br /> Under its continuingservices agreement with the Cityof Carrabelle, " 54, <br /> g a,��• ,, <br /> I ECT was retained to provide engineering design, permitting, bidding ; t ,, " e °va,,,; ' <br /> assistance, construction administration and environmental consulting ?L.' `i -p1.0-..1e;_ _ '_1•,.,"% <br /> services to assist the City in developing and implementing a :' r" f` '`�' <br /> 1 stormwater retrofit project to address this problem. <br /> ECT assisted the City of Carrabelle with the preparation of a <br /> I successful application for a construction grant under the Florida <br /> Forever competitive grant program administered by the Northwest <br /> Florida Water Management District. After the grant funding was i • ,-,. '1 <br /> Isecured, ECT provided design, permitting, and construction phase �j <br /> services for the following improvements: r- 1. 1 <br /> 1 • Retrofit of the existing, partially obstructed Avenue C "-- <br /> i cross-drain to inhibit sediment transport, including soft <br /> armoring to stabilize up-gradient areas, and provision of cs '::ir+ <br /> Ia sediment/floatables trap to protect the cross-drain ac' , `= ,rfi { <br /> against future obstruction. ` k <br /> • Construction of a new wet detention stormwater p t ac`;,t� r`'. <br /> management facility immediately south of the Avenue C j Tity •_ <br /> cross-drain, addressing localized flooding by adding . a� �! St , ., I' <br /> iiti <br /> storage volume to the watershed, and treating stormwater -ir. ' .. „ .4 <br /> runoff from a previously untreated 27.5-acre urban •- o- �a <br /> watershed. <br /> 1 <br /> I <br /> I <br /> I <br /> C�j PROJECT PROFILE O <br /> CAUSERSWANGIAPPDATALLOCALLMICROSOFTWIYDOWSITEMPORARY INTERNET FIIF.SICO.YTEN 0111100100ZNSMQXYSU\ISL-PRO'DOC-0f3012 <br />