Item 8A, Update on Interstate 694, Hwy 10, and CR 96

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1~ SOLTON &. I"v1ENK, Consulting Engineers & Surveyors 1960 Premier Drive. Monkoto, MN 56001-5900 Phone (507) 625-4171 . FAX (507) 625-4177 MEMORANDUM INC. Date: May 21, 2008 To: Kristine Giga, P.E. - Civil Engineer Greg Hoag - Public Works Director City of Arden Hills From: Christopher S. Chromy, P.E., P.T.ON ~\ Bolton & Menk, Inc_ L'2l:--- RE: Highway 10 Local Access Interchange Evaluation of Phasing Options and Associated Traffic Operations BMI Project No. '1'42_22335 011 behalf of the City of Arden Hills, I have reviewed and summarized the phasing and traffic analysis completed by S.E.I-1. for the referenced project. The purpose of the analysis was to evaluate the potential phasing of interchange constmclion in an effort to delay impacts to Arden Manor. The analysis indicates that traffic operations would not be maintained to acceptable levels without full construction oCthe interchange and west frontage road to CR 96. Changes in travel pattems and levels associated with the initial phase of the TCAAP development and grade separation ofTI-j I O/CR 96 necessitate the need for full access at the TJ-l 10 Local Access Interchange in 2012_ The Minnesota Department ofTmnsportation and Ramsey County Public Works have reviewed the phasing and traffic analysis and concur with these findings. Study Procedures and Finditu!s The traffic analysis was completed with the foli<.w.:ing conditions accounted fix: . Transportation improvements: o Completion of the I-694/1-35E "Unweave the Weave" Project, o Full Access at CR H11-35W, o Rice Creek Parkway between CR I-j and CR 96, o Grade Separation of 'I'll 10 and CR 96. o Signolization of CR 96 intersections at Old IIwy 8, 1-35W Ramps, and old I-Iwy 10_ . Traffic Demands in the Year 2012: o Historic Growth in Volumes, o New Trips generated from initial phase ofTCAAP. M!\f\JKATO, fv1f\ 6 F/,Il<MOI\JT, ~/iN 6 SLEt":PY EYE. Mf\J 0 f3URNSVILLE, MN 0 CHASK/\ Mi'~ WILLiV1Af<, fvlN 6 1~/\rV1S!:.Y fv1t\! 0 MvlES.I/\ ',',' ,vv/,l::,o!ton.nlcnk.com An Equoi Oppo.'iunify i:mpfoy~':