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Jul 01

Engineering Updates 6/25/2021

Posted on July 1, 2021 at 8:27 AM by Anna Schwichtenberg

City of Owatonna Engineering

Construction has begun and various projects can be seen around The City of Owatonna. Please slow down and use caution when approaching a construction zone.

We thank you for your patience as these projects are completed.

2021 Construction Projects:
2021 Project Location Map

2021 Bridge Street: Phase 1 work continued with the placement and compaction of addititional aggregate for the road base. Riprap for the ends of the culverts is being brought onsite and placed. The purpose of the riprap is to provide energy dissipation and reduce the erosion effects from fast-moving stormwater. Alongside the riprap placement, the north road ditch is being fine-graded with topsoil in preparation for seeding. Planned work next week will be additional road base preparation and turf establishment within the areas that have been graded to final elevations. Concrete paving is planned to begin on July 12th. Traffic changes are also anticipated to be implemented as Phases 1A and 1B begin. Work on Phase 1A is scheduled to begin on July 6th and Phase 1B is planned for July 12th to coincide with the concrete paving schedule. Additional media releases and revised detour routes will be provided next week.

To sign up for updates specific to the 2021 Bridge Street Project, please visit Notify Me

2021 N Cedar Streetscape: Construction has begun and street pavement removals have taken place. Vibration monitoring devices are placed throughout the 300-block which will notify the construction crew if their current activities present a danger to the buildings. If an alert does go off, they will immediately stop what they are doing and adjust operations accordingly.
• Sidewalks in front of the buildings are intended to remain open for as long as 
possible. Do not cross the barricades or enter the construction site. Please limit time on the sidewalk near the work area to maintain a safe environment.
• Temporary water connections will be taking place on the 300-block early next week. Water may be down for a short period of time while the connection is made. The Contractor will provide notice prior to a shutoff.
• The Pearl Street intersection is planned to remain open for the next couple weeks. Demolition of the Flooring Frenzy building is planned in two weeks. This will require the closure of Pearl Street adjacent to the work, including the intersection.
• Work in the 200-block is anticipated to begin in late-July. This is according to the current schedule and may be subject to change due to weather conditions.
• Work on the sanitary sewer is planned to begin on June 29. The plan is to construct the sanitary sewer, storm sewer, and watermain. Once the utilities are stubbed, additional pavement and sidewalk removals will occur along Rose Street. A 30-day construction window has been allowed in order to ensure a quick re-opening of Rose Street to thru traffic.


Be sure to visit the website for detour routes and alternate parking areas.

To sign up for updates for the North Cedar Streetscape Project, please visit the ISG Project Page, scroll to "Stay Connected" and fill out the form titled "Sign up here for project updates"


2021 Truman AvenueThis week NGE worked on water main work and sanitary work from School Street to Phelps street. They milled the existing pavement from Phelps to School Street. They plan to do water main work from School to Phelps next week. 

Overlay Project: The contractor has completed the manhole adjustments and catch basin replacements in the Park St, Kast Ave, Oak View Pl and 12th St SE neighborhood. The Streets Dept has also filled the cut-outs with asphalt there. The contractor has now moved to Hilltop Ave & Meadow Ln SW neighborhood and will continue adjusting those manholes, with the Streets Dept already there placing asphalt in those cut-outs. Next week, they will begin working on Mound St between Allan Ave & Hilltop Ave. 

2021 Street Maintenance: The sealcoating contractor has completed that portion of the project. The street sweepers have also gone through and cleaned up the loose aggregate on top, and removed the “Loose Gravel” signs. The project has now been completed for this season.

Street Department:
The City of Owatonna is proactively treating approximately 400 boulevard ash trees for Emerald Ash Borer (EAB). EAB has NOT been identified in Owatonna, but has been identified in the City of Medford, resulting in a quarantine of Steele County. The effort by the City of Owatonna is expected to delay the spread of EAB. There are approximately 1,200 boulevard ash trees, and the City intends to treat approximately 1/3 each year, resulting in a three year treatment rotation. The treatment of the boulevard trees benefits private trees as well. Not all trees need to be treated for the program to be effective.

This week the Street Department began another rotation of treating ash trees. They begin by measuring the diameter of the tree to determine how much product and how many injection needles are necessary for the treatment. Then holes are drilled and needles are inserted into the tree, this pressurizes the container that holds the product. Typically it takes about ten minutes for the ash tree to absorb the product into the trunk of the tree. 


EAB Treatment
Photo of Emerald Ash Borer Treatment in progress

To sign up for various department notifications, use the Notify Me feature on The City of Owatonna Website.

To submit a Public Works Maintenance Request, please call 507-444-4350 or fill out  an Online Public Works Maintenance Request Form.