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Intersection Design STH 32 and Chicory Road

Quick Project OverView. JNC

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Intersection Design STH 32 and Chicory Road

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    1. Intersection Design STH 32 and Chicory Road Presented By: Chris LaBounty

    2. Quick Project OverView JNC & Associates: Team Members: James Simmons & Nick Spitzer Mentors: Tom Lazcano, E.I.T. & Bao Tran, P.E. (WisDOT) Project Guidelines: Existing: 4-lane undivided highway Poor Accident Rate (130 collisions/4 yrs) Poor Pavement – Needs to be Reconstructed Request: 4-lane divided highway Sufficient Volume till 2020 Design Speed: 45mph

    3. Quick Project OverView (conT) Highway Charecteristics: Intersection is Located in Mt. Pleasant, WI in Racine County

    6. Quick Project OverView (conT) Intersection is Located in Mt. Pleasant, WI in Racine County STH 32 is a Rural Arterial & Truck Route in SE WI Next Intersection to N. of Chicory Signalized and speed reduction to 35 mph Next Intersection to S. of Chicory Unsignalized, residential street Chicory Rd. is an Industrial Heavy Side Street

    8. Completed work Four Key Phases: Volume & Crash Analysis [Blue] Alternative Analysis [Grey] Design [Red] Cost Estimating [Green]

    9. Completed Work (Cont.) Volume & Crash Conclusions: Traffic Signals & Roundabout Warranted Significant Queuing During RR Crossings High Volume of Rear-end Collisions High Volume of LT Angle Collisions This is insufficient LT gaps

    10. Completed Work (Cont.) Alternative Analysis Conclusions 12 Alternatives were Originally Considered 3 Ultimately Chosen for Preliminary Design, Preliminary Cost Estimates, & A Decision Matrix Major Limiting Factors: Cost Proximity to R.R. Tracks (68’) Proximity of Property on East side (34’) Large Storage Volume Required During RR X-ing (8min)

    11. Completed Work (Cont.) Alternatives Considered: Michigan Left Roundabout Signalization & Turn Lanes*

    12. Completed Work (Cont.)

    13. Completed Work (Cont.) Design Process Discoveries: LT Bay Requires 300’ of Storage Minimum Median Width (4’) Minimum Turn Lane Width (12’) Typical Median Width (16’) Shift Toward Track Still Allows For Adequate ROW & Clear Zones. No Modification of Chicory Road W. of RR No C&G on Roadway Exterior

    14. Completed Work (Cont.)

    15. Completed Work (Cont.) Cost Estimate Discoveries: Total Estimated Cost: $1,222,924 Critical Items: 8,312 sy of Pavement Removed ($38,021) 3,844 cy of Base Aggregate ($58,686) 3,800 ton of New Bituminous ($649,825) 1,414 sy of Concrete Median ($36,000) 1 new signal ($100,000)

    16. Project Completion Currently Finishing Environmental Assessment Report Final Report 15 Page Plan Sheet & Estimate Currently Being Reviewed by WisDOT

    17. I Appreciate Your Attention Any Questions?

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