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xv* Infrastructure Expansions The majority of required infrastructure for the Twin Lakes Business Park is current 1y in place with the exception of the Twin Lakes Parkway and interior sanitary serer, water main and storm sewer extensions west of Fairview Avenue. Major infrastructure improvements are not necessary to redevelop parcels located east of Fairview Avenue, however minor utility relocations and curb cuts in Terrace Drive may he required in some areas. The full redevelopment of interior parcels located merest of Fairview Avenue will require the construction of Twin Lakes Parkway. Twin Lakes Parkway is proposed to begin at the intersection of Cleveland Avenue and the northbound I - 35 w entrance /ex it ramps and run east, to the intersection of Fairview Avenue and Terrace give. The parkway is proposed to be approximately 3100 feet in length and include two 16-foot wide through lanes with left turn lanes and a center median throughout. A separate bituminous pedestrian trail is also proposed along the parkway. Sanitary sewer facilities are proposed to be constructed along Mount Ridge Road to serge interior parcels in the development, Approximately 1000 feet of 8 -inch sanitary surer is proposed to be constructed. The City's Sanitary Sewer Flan estimates total flows for the entire City of 1,910 Mgal/yr in 2000, 21079 Mgal/yr in 2010, and 2,144 M gal /year by 2020. The development of Twin Lakes as outlined in the AUAR is assumed within these total City numbers. The entire Twin Lakes area has a current estimated sewer flow of 74 1 gal /yr. At full development Twin Lakes will have an estimated total suer flow of between 180 -217 Mgal /yr, or an increase of 106 -143 Mgallyr over the existing development pattern. The City does not anticipate that full development will occur by 2010 and therefore the worst case scenario increase is not expected to occur until 2020 or beyond depending upon market forces and public financing sources for brownffield redevelopment. Water main facilities may be constructed along Mount Ridge Road easement and Twin Lakes Parkway to serve interior parcels in the deve 1 opmerit and provide additional loops within the City water main grid. Approximately 3000 feet of 8 -inch diameter water main is proposed to he constructed along a portion of Twin Lakes Parkway. Approximately 2000 feet of 12-inch diameter water main is proposed to be constructed along the existing Iona Lane utility easement and the Twin Lames parkway. Storm sewer facilities include catch basins for the two proposed roadways with trunk surer running to existing storm water treatment ponds. Additional trunk surer facilities will be constructed to provide connections between proposed parcels and existing storm water treatment ponds. Approximately 3500 feet of 12-inch through 36 -inch diameter storm severer is proposed to he constructed in conjunction with ultimate development in the Twin Lakes Business Park. 21