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23-05: Radisson Road and 116th Intersection Improvements
Last Content Update:
Project Update - 10/28/2022
This week the contractor completed concrete work, pavement markings and signage.
Project is complete, contractor will be removing the temporary traffic control devices.
If you have any questions regarding the project, please contact SEH inspector Erik Navratil at 612-257-4184 or enavratil@sehinc.com
Project Location
Radisson Road and 116th Avenue and Arnold Palmer Drive Intersections.
Project Description
Bulleted summary of what was found from data collection at Radisson/116th.
Traffic Counts (Elimination of EB and WB movements for 3/4 access)
- The westbound left turning/through volume is significantly higher than the eastbound left turning/through volume (812 westbound vs. 93 eastbound from 6AM to 7PM)
- The maximum 15-minute volume for minor street left turns/throughs (eliminated with 3/4 access) is 32 from 7:30 to 7:45AM; the maximum hour is 121 from 6:45 to 7:45AM.
- The 13-hour totals of vehicles that will need to reroute if the intersection becomes a 3/4 access is 905.
- During the 13-hour counts, there were a total of 237 northbound left turns and 122 southbound left turns which would have to reroute if this intersection were converted to right-in/right-out.
- If access is reduced at this intersection, some vehicles would likely reroute to the north and south and make u-turns at the signal at 119th Avenue and the intersection at Tournament Players Pkwy. While some vehicles would reroute through the existing neighborhoods.
Warrant Analysis
- The intersection currently meets traffic signal warrant 1 for 9 of the 8 required hours. In addition, the intersection meets the peak hour warrant for a traffic signal.
- A traffic signal, while meeting warrants, does not meet the 1/2 mile spacing requirements of Anoka County for a minor arterial road with a 50 mph speed limit.
Crash Analysis
- Using MnCMAT (2014 and 2015) and the MnDOT data (2016-2018) there were 9 crashes at the intersection over the previous 5 years (2014-2018)
- 6 of the 9 crashes were left turn crashes
- 7 of the 9 crashes involved movements that would be eliminated with a 3/4 access
- 8 of the 9 crashes involved movements that would be eliminated with a right-in/right-out access
- The crash rate does not exceed the critical rate currently; however, with a critical index of 0.88 the intersection is close to having a crash problem (2 more crashes over 5 years)
3/4 Intersection Concept
You will note that on the side street, pavement marking is used to encourage the right turn only. This could be done with an island, but would need to be larger, and therefore would impact the existing corners.
Project Schedule
July 2022 - Draft Plan to City
July - August 2022 - Resident Outreach
July - August 2022 - Anoka County Transportation Committee Review
August 2022 - Complete Construction Bid Package
September 2022 - Receive and Tabulate Bids from Contractors
September 2022 - Begin Construction
October 2022 - End Construction
Project Documents
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Project Contact
Dan Schluender
City Engineer
dschluender@blainemn.gov
Phone: 763-785-6158
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Engineering
Physical Address
10801 Town Square Drive NE
Blaine, MN 55449
Phone: 763-785-6172Fax: 763-785-6139