Route N @ Route Z Intersection Realignment Sponsor County Highway Project No. RB18-000016 Project Type Traffic Flow TOTAL FUNDING Total County Sponsor Federal $3,310,000 $1,776,000 $0 $1,534,000 Project Description This project involves a reconfiguration of the intersection of Route Z at Route N. Due to considerable existing traffic delays at the intersection, MoDOT was able to get federal funds through East-West Gateway to reconstruct this intersection. Their plan was to replace the unconventional split dual intersections with a pair of roundabouts in a dogbone configuration. County administration was concerned with the dogbone layout, since it appeared to only address short-term delays and not the long-term growth anticipated for the area, especially as the David Hoekel Parkway (DHP) corridor continues to develop. A single intersection with a traffic signal was determined by Roads and Traffic to be the best alternative. As a result of discussion between MoDOT, the County, and East-West Gateway, it was decided that St. Charles County should administer the project, and the traffic signal option would be built at an intersection by the east end. Route Z would be realigned behind the existing Walgreens location. This configuration also allows for a new direct connection to Buckner Road to the west to match the long range plan for DHP, which could be easily incorporated into the intersection realignment in the future as the DHP#3 project.
FUNDING FOR IMPROVEMENTS County Sponsor Federal Other Total Design $200,000.00 $200,000.00 Utility Relocations $61,500.00 $61,500.00 Right-of-Way $500,000.00 $500,000.00 Construction $1,014,500.00 $1,534,000.00 $2,548,500.00 TOTAL $1,776,000.00 $1,534,000.00 $3,310,000.00 PERCENT (%) 53.66% 0.00% 46.34% 0.00% 100.00% FINANCIAL PLAN Design County Sponsor Federal Other Total 2019 $200,000.00 $200,000.00 2020 2021 Utility Relocations County Sponsor Federal Other Total 2019 2020 2021 $61,500.00 $61,500.00 Right-of-Way County Sponsor Federal Other Total 2019 2020 $500,000.00 $500,000.00 2021 Construction County Sponsor Federal Other Total 2019 2020 2021 $1,014,500.00 $1,534,000.00 $2,548,500.00
ROUTE N AND ROUTE Z INTERSECTION REALIGNMENT ROUTE N ROUTE Z ROUTE N FUTURE DHP #3 BUCKNER RD ROUTE Z ROUTE N AND ROUTE Z INTERSECTION REALIGNMENT PROJECT LENGTH: ROUTE N: 0.11 MILES ROUTE Z: 0.45 MILES N NOT TO SCALE
Estimate of Project Costs Project Sponsor: Saint Charles County Highway Department Project Title: David Hoekel Parkway #3 - Route N and Route Z Date: 4/9/2018; updated 6/4/18 Specific Roadway Items Item Quantity Unit Unit Price Amount Clearing and Grubbing 1 Lump Sum $ 75,000.00 $75,000.00 Removal of Improvements 1 Lump Sum $ 90,000.00 $90,000.00 Mobilization 1 Lump Sum $ 100,000.00 $100,000.00 Surveying 1 Lump Sum $ 50,000.00 $50,000.00 Earthwork 30000 Cubic Yards $ 15.00 $450,000.00 Retaining Walls 2500 Square Feet $ 25.00 $62,500.00 4" Aggregate Base 12800 Square Yards $ 6.00 $76,800.00 Pavement: 12000 Square Yards $ 45.00 2&3-12' lanes, 4'&6' shldr $540,000.00 Driveways 800 Square Yards $ 40.00 $32,000.00 Curb and Gutter 0 Linear Feet $ 18.00 Drainage Structures 1 Lump Sum $ 100,000.00 $100,000.00 Traffic Control 1 Lump Sum $ 75,000.00 $75,000.00 Traffic Signal 1 Each $ 200,000.00 $200,000.00 Erosion Control 1 Lump Sum $ 60,000.00 $60,000.00 Temporary Pavement 3000 Square Yards $ 25.00 $75,000.00 Sodding 4500 Square Yards $ 5.00 $22,500.00 Seeding 5 Acres $ 3,000.00 $15,000.00 Pavement Markings 12000 Linear Feet $ 1.00 SUBTOTAL $12,000.00 $2,035,800.00 Specific Bicycle Items Item Quantity Unit Unit Price Amount SUBTOTAL Specific Pedestrian Items Item Quantity Unit Unit Price Amount 5 Foot Wide Sidewalks 0 Square Yards $ 40.00 SUBTOTAL
Specific Transit Items Item Quantity Unit Unit Price Amount SUBTOTAL Miscellaneous Other Items Item Quantity Unit Unit Price Amount Utility Relocations 1 Lump Sum $50,000.00 SUBTOTAL $50,000.00 $50,000.00 Construction Cost Total Contingency Inflation Preliminary Engineering Right-of-Way Construction Engineering/Inspection Project Total (rounded) $2,085,800.00 $417,160.00 $62,580.00 $200,000.00 $500,000.00 $40,000.00 $3,310,000.00
Route N and Route Z Intersection Realignment Project Schedule Start Date (MO/YR) Finish Date (MO/YR) Receive EWG Notification Letter to Take Over Project 6/18 7/18 Execute Agreement (Project sponsor & MoDOT) 12/18 4/19 Engineering Services Contract Submitted & Approved N/A N/A Obtain Environmental Clearances 7/18 7/20 Public Meeting/Hearing 2/19 2/19 Develop and Submit Preliminary Plans 7/17 2/19 Preliminary Plans Approved 3/19 5/19 Develop and Submit Right-of-Way Plans 6/19 1/20 Review and Approval of Right-of-Way Plans 2/20 3/20 Submit and Receive Approval for Notice to Proceed for Right-of-Way Acquisition (A-Date) 3/20 4/20 Right-of-Way Acquisition 5/20 9/20 Develop and Submit PS&E 4/20 7/20 District Approval of PS&E/Advertise for Bids 8/20 10/20 Submit and Receive Bids for Review and Approval 11/20 12/20 Project Implementation/Construction 1/21 12/21