4th St S Ramp & Auxiliary Lane
The project consists of two distinct improvements:
-Construction of a new ramp to northbound I-35W at 4th St S
-Construction of an auxiliary lane from University Ave SE to the Stinson Blvd NE exit
Proposed Improvements - 4th St and I-35W Interchange:
The project includes the construction of a new entrance ramp from 4th St S to NB I-35W, including a new eastbound to northbound double left turn lane from 4th St S. The new ramp will enter mainline I-35W into a modified lane accomplished by reducing the TH 55 entrance to NB I-35W from two lanes to one, thus allowing the other lane to be used by traffic from the new I-35W entrance ramp from 4th St S. The new construction on 4th St S will connect to the roadway improvements to the east constructed for the Central Corridor Light Rail Transit project.
Proposed Improvements - I-35W Auxiliary Lane:
The project provides an auxiliary traffic lane from University Ave SE to the Stinson Blvd NE exit. Auxiliary lanes are located at the outer edge of the roadway for use in speed change, lane weaving, maneuvering of entering and exiting traffic, truck climbing, and other purposes supplementary to through traffic. Auxiliary lanes generally extend from one entrance ramp to an exit ramp and allow drivers more decision time to make maneuvers onto or off of the freeway. In general terms, one can think of an auxiliary lane as a place that allows drivers to enter the freeway directly into a temporary lane and/or exit in a temporary lane with more decision time than a traditional ramp connection.
The auxiliary lane proposed for this project requires some pavement widening and as a result, retaining walls. Shoulder areas will be reduced due to right of way constraints. The additional lane improves the ability to provide, and does not preclude, a future managed lane on northbound I-35W such as a HOV (high-occupancy vehicle) lane or MnPass lane.
The project proposes consolidation of northbound exit ramps directly connected to I-35W on the north end of the project. Today there are two ramps. The first northbound I-35W exit ramp on the north end of the project after crossing under the Hennepin Ave bridge is the joint Stinson Blvd/New Brighton Blvd exit ramp. The second northbound 35W exit ramp after crossing under the Hennepin Ave Bridge is the Johnson St NE exit ramp. To minimize impervious surface and reduce confusion in the area while accommodating adequate sight lines for the various existing exits, the project proposes removing approximately the first 2,700 feet of the first exit ramp and combining the remaining portion of the first exit ramp with the Johnson St NE exit ramp. Drivers today have three exit destination options and the project proposes maintaining all three exit destination options. To put another way, under the proposed layout drivers would still have the ability to exit directly to Johnson St, New Brighton Blvd, or Stinson Blvd as they see fit.
The estimated cost of the project is $13 Million. The project will be paid for by a combination of state and local funds.
The project timeline is shortened through the use of a Design/Build process. The Preliminary design phase is expected to be complete in September of 2011. A public hearing and the municipal approval process were completed in December of 2011. Bid letting for the project is expected in February of 2014. Construction will occur in 2014, with substantial completion in late November 2014.
Open house #1 occurred on August 23rd, 2011.
Open House #2 occurred on October 25th, 2011.
Open House #3 was held on December 14th, 2011.
Additional public involvement will occur after additional data gathering is completed in spring of 2012.
For more information, please feel free to contact any of the team members below:
Project Contact: Bill Fellows 612-673-5661
Hennepin County Transportation Department
1600 Prairie Drive
Medina, Mn 55340
Design: Nick Peterson, P.E., Senior Project Manager 612-596-0382
(Note: Project information may change due to scheduling, weather, or other factors outside of our control. Listings will be updated as new information becomes available.) Citizens concerned with pedestrian access during construction should contact the project manager directly.
Last updated Sep 2, 2014