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STH 145 Roundabout Presentation Bloom Companies, LLC July 3, 2012
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Our Team
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Bloom Companies, LLC Bloom is a multi-disciplinary architecture/engineering/construction firm specializing in providing innovative and sustainable solutions for the built environment. Our engineering services include: Structural Engineering, Geotechnical Engineering, Environmental Engineering, Land Surveying Services, Site/Civil Engineering, Bridge Engineering, Transportation Engineering, Traffic Engineering, Water Resources Engineering, Value Engineering, Construction Engineering and Architecture. Our Construction services encompass: Buildings, Bridges, Infrastructure, Pile Foundations, Sheet Piling, Concrete, Carpentry, Site Work and Construction Management.
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Project History ▫TIA in Aug. 2009 intersection needs improvements ▫March 31, 2011 – Selected for Master Contract project ▫Mid June 2011 work order is approved ▫Late June 2011 survey completed ▫OPM held Sept. 27, 2011 ▫30% plans completed Dec. 12, 2011 1 Signalized design 1 Roundabout design ▫PIM No. 1 on Feb. 8, 2012 ▫ICE approval on June 6, 2012 Roundabout recommended
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Design process ▫Original thought presented at OPM: ▫Center the Roundabout, show historic school house impact (basis for design) ▫Was told any design involving historic properties must be feasible and leave historic property intact. ▫Slide center of intersection NE within both options ▫Multiple iterations and discussions with Ourston on Roundabout design ▫October thru early December 2011 ▫1 Signalized design and 1 Roundabout design submitted to Department and Village for comments (seen in agenda package)
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Signalized Intersection 1
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Roundabout Intersection 2
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PIM No. 1, Feb. 8, 2012 3 42 attendees signed in
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PIM No. 1 comments / themes 4 12 comment forms turned in; comments include: 1) Concern for speed on 145, mentioned roundabout could help this 2) One misunderstood roundabout to be 2 lane with need to switch lanes 3) 3 liked the roundabout idea, 1 liked safety of Roundabout 4) 7 said no roundabout, multiple mentioning lower cost of signal option (incorrect assumption) Signal = $1.9 million Roundabout = $1.4 million 5) Concerns about utility lines, trees and ability to make left out of driveway 6) Waste Mgmt – desires signal or 50% larger Roundabout 7) 1 thought – signal easier on semi’s and garbage trucks 8) 2 concerned about space required for roundabout 9) 1 said go with signal due to cost (see above #’s) Shared with stakeholders on Feb. 9, 2012 via synopsis / overview doc.
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ICE Review 4 9 different areas within chart, operational analysis shown below.
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ICE Review, continued 4 Signal LOS = CRoundabout LOS = B Signal Delay = 34 secondsRoundabout Delay = 14 seconds
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Project initiation 6
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Some items initiating project 7
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TIA recommendations 8
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Roundabouts VS Signals 9
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Present design (Roundabout) Safety ▫Speed reduction through use of Chicane 1
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Present design (Roundabout) Right-of-way impacts ▫Similar for both options 1
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Present design (Roundabout) Access – lost with signal but not with Rdbt. 1
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Village comments desired Can help better design Now or later, form provided 1
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Thank You!! Any Questions? Emmanuel Yartey, PE WisDOT Project Manager 262-548-6429 Jeremy Hinds, PE Bloom Project Manager 414-292-4552
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