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<br />~ CONSULTING <br /> <br />GROUP, <br /> <br />I N c. <br /> <br />T rdl1sportatiol1 · Civil · Structur.ll · Em'ironmenl.ll · Planning · T raffje · LandsGlpe Architecture · r.uking . Hight of Way <br /> <br />SRF No. 0044994 <br /> <br />FINAL MEMORANDUM <br /> <br />TO: Lyndon Robjent, P.E., Assistant County Engineer <br />Anoka COlmty Highway Department <br /> <br />FROM: Jim Dvorak, P.E., Vice President <br />Marie Cote, P.E., Principal <br /> <br />DATE: September 7,2005 <br />SUBJECT: I-35E/CSAH 14 INTERCHANGE ALTERNATIVES EVALUATION <br /> <br />INTRODUCTION <br /> <br />Anoka County, in cooperation with Washington County, Centerville, Lino Lakes and Hugo, is <br />planning the reconstruction of CSAH 14 from I-35W to the east county line. Due to its impact on <br />the proposed reconstruction of CSAH 14 and the issue of local access in the vicinity of the <br />interchange, an alternatives evaluation of the future I-35E/CSAH 14 interchange design has been <br />conducted. The purpose of this memorandum is to document the planning level review of the <br />interchange alternatives in order to narrow down the possible alternatives. <br /> <br />Two traffic forecast scenarios have been considered: one using the Regional Forecast Model for <br />Year 2030, and the second being a "full build" scenario. Concepts for both traffic levels are shown <br />to illustrate the possible range of improvements. A final interchange configuration cannot be <br />selected until an agreement is reached on the appropriate traffic levels, and preliminary design, <br />modeling and environmental documents are completed. <br /> <br />TRAFFIC FORECASTS <br /> <br />In the Anoka County CSAH 14 Roadway Alternatives Analysis Report dated July 2004, traffic <br />forecasts were developed for year 2030 build conditions. Traffic forecasts were developed for the <br />study area using an enhanced year 2030 Regional Forecast Model to include the proposed regional <br />access alternatives and CSAH 14 upgrades. Figure 1.2, Regional Access Alternatives - Option 1, <br />illustrates the traffic volumes developed by the use of the Regional Forecast Model. This <br />alternative presents 2030 traffic volumes with no additional access to the regional system. In <br />addition, traffic volumes for a "Full Build" condition were examined to understand roadway system <br />implications for the full. range of development currently anticipated in area conununities long range <br />plans. Figure 4.4, Full Build Option 4, shows the resultant traffic forecasts for the full build <br />scenano. <br /> <br />One Carlson Parkway North, Suite 150, Minneapolis, MN 55447-4443 <br />Telephone (763) 475-0010 @ Fax (763) 475-2429 @ http://www.srfconsulting.com <br /> <br />An Equal Opportunity Employer <br /> <br />1t> <br />