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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />~ <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Page 7 <br />Chunnel Committee <br />December 2, 1994 <br /> <br />length. A preliminary S.H. 1191Black Hawk Street intersection has been designed to ensure <br />physical space for the transition structure. An additional access point has been layed out <br />between Black Hawk Street and Richman Street also to ensure sufficient physical space. A <br />profile was also designed for this area. These designs are on AutoCAD files and displays <br />have been plotted. <br /> <br />As noted in my August 18, 1994 letter to Becky Davidson, local drainage connections have <br />not been inventoried. When updated mapping is compiled, the inventory will be completed <br />with City staff along with ground survey to verify inverts. Hydraulic grade line results will <br />provide the basis for locations of tie-in points. <br /> <br />Geotechnical Investigation <br /> <br />Geotechnical drilling and analyses have been completed along 20% of the Chunnel reach to <br />verify suitability structural soundness and quality of material for backfilling the Chunnel. <br />Geotech information from the City's Mill Street bridge project has been discussed with the <br />project consultant. <br /> <br />Construction Cost Estimates <br /> <br />Budgetary construction cost estimates have been completed and bave been previously <br />submitted to the City for the Chunnel project. They are based on cross section takeoffs on <br />roughly 300 foot centers along North aear Creek. The value of $1,OOO/linear foot includes <br />the Chunnel, excavation, backfilling and landscaping. It does not include S.H. 119 <br />improvements or local drainage connections. <br /> <br />PRELIMINARY DESIGN PROPOSAL <br /> <br />The following table outlines preliminary design tasks and costs. The costs included are based <br />on man-hour estimates and expected construction costs. Costs for revisions and printing will <br />be included in final design. A more detailed task itemization is available and should provide <br />the basis of a contract (as required by our professional service insurer). <br /> <br />Coordination activities by Futura are expected to focus on design items. The Black Hawk <br />project manager will take over meeting with the aear Creek Water Forum, the Upper aear <br />Creek Watershed Association, and other agencies interested in the progress of the project. <br />