Agenda - Council - 05/23/2006 - Laserfiche WebLink

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Mn/DOT A~eement No. 89336 Exhibit A Detailed Scope of Work and Deliverables I. Envh'anlnental Documentation Preparation nfo Drati and Final Environmental Worksheet (EAW) is required for those poaions of the T.H. 47 corridor that, upon analysis of the ali~ment co~cepts, will be taken into the Official Mapping proeess. The EAW will serve as either the project scoping document or final environmental review docnmcn~ ou a preferred alternative, and will provide the basis for whether an Environmental impact Statement is needed. The EAW will be prepared following the EAW Guidelines ~om the Environmental Qttality Board, inco~orated by reference. If info,orion detailed in the original Request for Proposal, i~*co~ pointed by reference, language provides a higher required standard (such as noise analysis), then the hlg}~cr staudard will be included in the EAW. Sections will include, but are not limited to: report purpose; purpose and need; alternatives analysis; social, economic and environmental impacts; State EA.W form; public and agency involvement; pen-nits required aud approvals required. All aspects of environmental reporting will be completed including, but loot limited to: flood plain analysis; farm [and analysis; archaeological/historical surveys; wetland deiineation; traitor impacts and modeling; ecologicalIy-sensitive resource review; water quality/mn-off amt pondb~g; noise analysis; air analysis and water pollution concem~, permitting required, etc. Tmi'fic projections will be prepared for the corridor based on the years 2010 and 2030. Discussions with the Cf k ot'Aooka, City of Ramsey and Bums Township will be conducted to eh. sure all planned de','clopmcnts are inco~ porated into the tral'fic study projections, as well as the standard percentage factor used by State and Anoka County. In the amdysis o£ the possible alternatives For T.H. 47, an evaluation will be conducted to analyze the capacity ami service limitations of T.H. 47 on adjacent north-south corridors of County State Aid F[izhway (CSAH) 5 (Nowthen Boulevard), CSAH 56 (Sunfish Lake Boulevard) and CSAI-I 83 (?,rrnstrong I3oulcvard); impact on nearby east-west corridors ofCSAH 116 (Bunker Lake Boulevard) :md Alpine Drive, and the need ±bt change to and/or an additional crossing of the Rum River. These a~'adysc, s will compare, but not be limited to, a review of trailer operations including Level of Service, at:eess management alternatives develnpcd in accordance with State policies, right-of-way implications, sttggestcd iinplcmentation timefi'ame and cost. /:or the T.H. 47 concepts, circnlation will be reviewed along existing or needed fvmre frontage roads to accmmnodate ex/sting business and residential neighborhoods. Right-of-way needed and estimated costs wi)l be prepared for all options. Noise analysis modeling for the T.If. 47 alternatives will be done for the following conditions: Existing conditions: daytime (7 AM to 10 PM) and nighttime (10 PM to 7 AiM) o Nu-buikl co;~ditions: Year 2027, daytime (7 2MM to 10 PM) and nighttime (10 PM to 7 AIM) Build conditim~s, using the final layouts: Year 20277 daytime (7 gaM to l0 PM) and nighttime (10 I?M to 7 AM) with and without noise banSers ~ he consultant will use State's noise model MENiNOISE (modified version of the Federal Highway Administration's (FI'IWA) noise model Stamina 2.0). Peak hour volumes will be used for both daytime and ~igbttime for the project build and no-build conditions. In thc I':AW and tbr the prefen'ed alternative, the consultant will show the noise walls that meet the Ivlimlcsota Pollution Control Agency (MPCA) requirements for noise wall installation and are cost cf;%ctive. For no/se ban'/ers to be cohen'voted, the cost must not exceed $3,250 per dBA of reduction per resident[.'. For barriers to be wan-anted, they must be effective by providing a meanmg£ul reduction in Page I of 7 -241-