Streetscape improvements continue
Streetscape improvements are nearing completion on last year’s reconstruction from Medicine Lake Road (County Road 70) to Duluth Street (County Road 66).
Crews have finished pouring sidewalks and medians, as well as installed new street light fixtures. Also, traffic signal system installations at the Douglas Drive intersections at Duluth Street and Medicine Lake Road are almost complete. The new system will feature accessible signals to accommodate pedestrians with disabilities
Beginning in mid-July, the City of Golden Valley will begin landscaping along Douglas Drive from Medicine Lake Road to Duluth Street.
Milling and paving operations for two segments begins Saturday, July 22
On Saturday, July 22, crews will begin milling both Medicine Lake Road (County Road 70) and Duluth Street intersections in preparation for final paving at Douglas Drive from Medicine Lake Road to Duluth Street, and at Duluth Street from Douglas Drive to Adair Avenue.
Road milling is a process where at least a part of paved area is removed by a grinding action of a large milling machine. The goal of milling is to remove the top layer so that the final layer of pavement or "wear course" can be placed evenly throughout the roadway.
Road users will experience intermittent lane restrictions when milling operations begin. We anticipate work to last a day.
Weather permitting, construction crews will begin paving the final wear course on Wednesday, July 26.
This work is expected to last around two days. Once complete, the newly paved roads will have temporary lane markings for ten days before crews can begin final striping of the roadway. Once ten days pass, striping operations will be completed under normal traffic conditions. As a result, road users should anticipate delays and intermittent lane restrictions.
Soil improvement work continues on Douglas Drive
In early July, construction crews began subcutting operations from Duluth Street (County Road 66) to Winsdale Street. This is an important step in rebuilding the road after all underground work is done.
Subcutting is a soil correction procedure that removes the poor soil beneath a roadway and replaces it with sand. The subcut is typically three feet below the surface of the new street. Once sand is placed, it is spread evenly and compacted to increase density and provide extra strength for the future road. Sand also allows for better drainage than native soils, which is an important component in extending the life of the pavement. Poor drainage can cause issues such as potholes and road heaving.
Once sand is compacted, aggregate (rocky mixture) from recycled pavement will be placed on top of the sand. Grading work will follow before installing new curbs, gutters and pavement.
Once subcutting work is completed on Douglas Drive from Olympia Street to Duluth Street, crews will create a temporary through lane for local traffic by Tuesday, July 25.
Subcutting operations are expected to complete by the early August.
Crews move the first layer, or "lift", of sand into the ground as they continue efforts to rebuild the roadway on Douglas Drive.
Next, a steel drum roller is used to compact the first lift of sand.
Afterwards, crews spray water onto the first lift of sand to improve compaction before placing the second lift of sand.
Utility work continues on Golden Valley Road intersection
Private utility work are progressing on removing old, unused gas lines and service line burial underground. Work continues along
Construction crews will begin replacing and installing watermain, sanitary and storm sewer pipe at the Golden Valley Road intersection. Utility work will continue for up to a month before construction of the new roundabout begins at the Golden Valley Road intersection.
Dust, noise and vibrations in the construction area
Crews will be using large construction equipment throughout construction, creating dust, noise and slight vibrations. Dust, noise and vibrations are a normal part of a construction project. The project team is working in accordance with noise ordinances set by the City of Golden Valley. The team also has a vibration control plan to make sure that vibrations stay within standard acceptable limits. Dust is being monitored and controlled in order to keep levels at a minimum.
If you have concerns or questions about noise and/or vibrations, please contact the project at 612-543-3485.