Jul 30

Engineering Updates 7/30/2021

Posted on July 30, 2021 at 4:57 PM 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: Work this week was primarily focused on prepping and paving the St. John Drive entrance and business driveways. The new concrete typically takes between 7 and 14 days before it can be driven on so please use extra caution during and after paving is occurring and do not enter the area until the road is open to traffic. Work is also occurring west of Park to install driveway culverts and prepare for driveway paving. Next week, the curb and gutter, along with the median, will be placed. Striping and median landscaping will occur in mid-August, while seeding along Phase 1 is expected to be placed early next week with Phase 1 and 1A completion mid-August. Phase 1B re-opened on Tuesday evening and now allows for access to and from southbound I-35 at Bridge Street; however please note the detour to access west of I-35 is still in place, as only the intersection has been reopened.

It is anticipated that new traffic changes will begin the week of August 16th with removals beginning within Phase 2. A new detour plan and media release will be sent and detour signage will be updated.

Additional media releases and detour routes are shown here.

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

2021 N Cedar StreetscapeWork this week included continued concrete removal, sanitary sewer services, and the painting of signal poles at the Rose Street intersection. Asbestos was found as an insulator in a steam pipe along the 300 block, and the safe removal began mid-week. This temporarily slowed the service installation, however removals on the west side are anticipated to be completed shortly, allowing a quicker pace to resume.

Next week, the contractor will look to finalize base prep and install curb along Rose Street early in the week, with mainline and sidewalk paving to follow. The continuation of sanitary sewer services, watermain construction, and storm sewer installation along N. Cedar Avenue is also expected next week. The new concrete typically takes between 7 and 14 days before it can be driven on, so please use extra caution while paving is occurring and do not enter the area until the road is open to traffic. Coordination with businesses will occur during sidewalk construction to ensure pedestrian access to buildings. Removals and closure of the Pearl Street intersection and the 200 block is anticipated to begin in about two weeks.

The Owatonna Downtown Live Stream can be found on The 2021 North Cedar Ave Streetscape Project page! 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 Avenue: This week: Northland Grading & Excavating worked on longitudinal subdrain, sump pump services, water main, and subbase grading.  Northland completed longitudinal subdrain and sump pump services between School St. and Phelps St.  They also completed water main from Phelps St. to University St.  Also, they finished subgrade prep. work and started subbase grading work between School St. and Phelps St. 

Current Status of Major Work Items:

  • Sanitary Sewer
    • Work Completed To-Date: Main St. to Prospect St.
    • Work Remaining: Prospect St. to Havana Rd.
  • Storm Sewer
    • Work Completed To-Date: Main St. to Phelps St.
    • Work Remaining: University St. to Havana Rd.
  • Water Main
    • Work Completed To-Date: Main St. to University St.
    • Work Remaining: University St. to Havana Rd.
  • Subgrade prep. & Subbase Grading
    • Work Completed To-Date: Main St. to School St.
    • Work Remaining: School St. to Havana Rd.
  • Roadway & Sidewalk Pavement 
    • Work Remaining: Main St. to Havana Rd.

Next week: On Monday of next week, Northland is planning to work on water main; continuing from where they left off at this week at University St. and work towards Prospect St. On Wednesday of next week, Removal of Existing Pavement is scheduled to take place.  The asphalt milling subcontractor will be onsite to remove the remaining portion of existing asphalt pavement on the project, from South St. to Havana Rd. Northland will also be working on subbase grading at the start of next week to get the subbase placed and graded up to Phelps St.  After they get the subbase completed at this intersection, they will begin working on subgrade prep. work from Phelps St. to University St.  

Intersections affected: There will be an increase in construction activity on-site next week because of the asphalt milling subcontractor that is scheduled on Wednesday for the removal of the remaining existing asphalt pavement on the project.  On Wednesday, flaggers will be located at side streets to direct drivers and pedestrians during the asphalt milling operation.  With the increased construction activity planned for next week, drivers and pedestrians are especially advised to take alternatives routes, if possible, to avoid construction activities on-site. 

2021 Overlay: The 2021 Overlay project is completed. The Street Department finished with the paving Thursday (July 29th) afternoon.

26th Street & State Avenue Roundabout: The intersection of 26th Street and State Avenue (County Highways 34 and 45) will be closed for construction starting Thursday, July 29. State Avenue will be detoured via Hoffman Drive (CH 2), I-35, and 46th St NW (CH 9). 26th Street will be detoured via Cedar Avenue, North Street, Hoffman Drive, and I-35. A map showing the project area and detours is attached. The project will replace the existing signalized intersection with a roundabout to improve safety and traffic operations. The project will also improve a rough railroad crossing to the east. The construction is expected to be completed in October. View the full media release here.

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.

Jul 23

Engineering Updates 7/23/2021

Posted on July 23, 2021 at 4:39 PM 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

26th Street & State Avenue Roundabout: The intersection of 26th Street and State Avenue (County Highways 34 and 45) will be closed for construction starting Thursday, July 29. State Avenue will be detoured via Hoffman Drive (CH 2), I-35, and 46th St NW (CH 9). 26th Street will be detoured via Cedar Avenue, North Street, Hoffman Drive, and I-35. A map showing the project area and detours is attached. The project will replace the existing signalized intersection with a roundabout to improve safety and traffic operations. The project will also improve a rough railroad crossing to the east. The construction is expected to be completed in October. View the full media release here.

 2021 Bridge Street: Work this week was primarily focused on prepping and paving Phase 1, 1A and 1B. Final trimming of the base as well as stringline, dowel baskets and supplemental reinforcement placement occurred on Monday. Concrete paving began on Tuesday with paving the westbound travel lanes including at the I-35 intersection, Wednesday paving continued with the eastbound lanes. While paving occurred, preparation of the Park Drive intersection continued and paving at the intersection began on Thursday. Continued concrete paving at the Park Drive intersection, St. John Drive, and driveways will occur next week. Following this the curb and gutter along with the median will be placed. The new concrete typically takes between 7 and 14 days before it can be driven on so please use extra caution during and after paving is occurring and do not enter the area until the road is open to traffic. Phase 1B is planned to be re-opened on July 26th, 2021 however is dependent on whether adequate strength has been reached in order to facilitate traffic to and from I-35 again. Phase 1A is expected to be complete within 30 calendar days from the start of the phase which results in an expected intermediate completion date of August 5th, 2021. Some continued work is expected to occur within Phase 1 during the week of August 9th with an expected completion of August 13th, 2021.

It is anticipated that new traffic changes will begin the week of August 16th with removals beginning within Phase 2 including the intersection of W. Bridge Street and 24th Avenue. A new detour plan and media release will be sent and detour signage will be updated.

Additional media releases and detour routes are shown here.

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

2021 N Cedar Streetscape

Work This Past Week

  • Sanitary sewer main and service construction continued along the 300 block.
  • The signal system at the intersection of Rose Street was prepared for new paint and a few updates within the system.
  • Telecommunications duct bank was and continues to be adjusted as needed ahead of the contractor to prevent utility conflicts.

Upcoming Work

  • Continued sanitary sewer service installation along the 300 block.
    • Access to some buildings may be necessary to confirm services. Communication with businesses will continue to occur as this is required.
  • Continued storm sewer and watermain installation along the 300 block is to follow the sanitary sewer services.
  • Additional street and sidewalk removals along Rose Street will occur. Following removals, the subgrade will be prepared, and aggregate base placed and prepared for the concrete pavement.
  • Late next week or early the following week, concrete paving on Rose Street is anticipated. The new concrete typically takes 7-14 days before it can be driven on so please use extra caution while paving is occurring and do not enter the area until the road is open to traffic.
  • Removals within the 200 block are anticipated to begin early to mid-August

The Owatonna Downtown Live Stream can be found on The 2021 North Cedar Ave Streetscape Project page! 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 Avenue: This week: On Monday and Tuesday of this week, Northland Grading & Excavating worked on Sanitary Sewer construction.  Starting at the intersection of University St. & Truman Ave., they installed one (1) Sanitary Sewer Manhole structure at this intersection and then continued working Southward towards Prospect St. installing 8” PVC Sanitary Sewer Main.   On Wednesday of this week, Northland worked on Storm Sewer construction.  They installed two (2) storm sewer catch basin intake structures at the intersection of University St. and Truman Ave. and installed 15” RCP Storm Sewer pipe as well.  On Thursday of this week, Northland worked on Sanitary Sewer construction again.  They installed 8” PVC Sanitary Sewer Main and one (1) Sanitary Sewer Manhole structure at the intersection of Prospect St. & Truman Ave.  On Friday of this week, Northland worked on subgrade grading and installed 6” Longitudinal Subdrain.

Items of work completed this week in Phase 2 of the project include: Removal of existing Sanitary Sewer main pipe, Installation of two (2) Sanitary Sewer structures, Installation of new 8” PVC Sanitary Sewer main, Removal of existing Storm Sewer pipe & catch basin structures, Installation of new 15” RCP Storm Sewer Pipe, Installation of new Storm Sewer Catch Basin structures, Subgrade excavation and grading, 6” Perf. P.E. Pipe Drain.

Next week: Northland Grading & Excavating plans to begin next week working on new Water Main construction; starting were they left off at the intersection of Phelps St. & Truman Ave. and work Southward towards University St.  After they complete the installation of the new Water Main in this block, they plan to work on installing the new Water Main Services & Sanitary Sewer Services in this block. (Phelps St. to University St.)   Northland also plans to work on sub-cutting the block from School St. to Phelps St.  After sub-cutting is complete, they will begin prepping the subgrade and laying the rock subbase layers.  

Items of work planned for next week in Phase 2 of the project include: Removal of existing Water Main pipe, and Installation of new Water Main pipe, Gate Valves, & Fittings, and Installation of new Water Main & Sanitary Sewer services.

Intersections affected: Northland Grading & Excavating will not be working in the Phase 1 portion of the project next week. Side-road access across Truman Ave. in the Phase 1 portion of the project at the intersections of Agnes St. and Academy St. will be open to traffic and residents via temporary ramps.  Drivers are still encouraged to take alternative routes, if possible, to avoid construction activities in the Phase 1 portion of the project.  

Northland will be working in the Phase 2 portion of the project, from School St. to Prospect St.  Side-road access across Truman Ave. at the intersection of School St. & Phelps St. will remain closed until construction of underground work items at these intersections is completed, backfilled, and aggregate sub-base has been placed.  Side-road access at the intersection of University St. may be temporarily closed next week for work on Sanitary Sewer and Water Main.  Side-road access across Truman Ave. at all other intersections along the project will continue to be maintained for traffic and residents.  Drivers are encouraged to take alternative routes, if possible, to avoid construction activities on the project.

2021 Overlay: Beginning Monday July 26th through July 30th the Street Department will be putting a new blacktop surface on this street. For the duration of this project please keep all parked vehicles off of the affected streets and use an alternate route for travel. The affected streets can be found on this map

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.

Jul 16

Engineering Updates 7/16/2021

Posted on July 16, 2021 at 3:12 PM 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: Work this week was primarily focused on Phase 1A has progressed with preparation of the road base. A couple areas of soft material were encountered and were corrected to ensure a sturdy, consistent base for pavement to be placed on top of. Electrical conduit has been placed to facilitate the new signal system installation at the Bridge St. Park Dr. intersection. Phase 1A is expected to be complete within 30 calendar days from the start of the phase which results in an expected intermediate completion date of August 5th, 2021. Construction on Phase 1B began this week on July 14th with removals and subgrade preparation which required the closure of the southbound I-35 ramps at W. Bridge Street. Due to the significant traffic impacts, the work in this area is required to be expedited and completed within 10 calendar days and is planned to be re-opened on July 24th. Work within this phase consists of replacing the existing bituminous pavement with new concrete surfacing. Concrete paving on Phases 1, 1A & 1B is expected to begin next week. The new concrete typically takes between 7 and 14 days before it can be driven on so please use extra caution while paving is occurring and do not enter the area until the road is open to traffic. In preparation for the concrete paving, a string line is being set up and is used to guide the paving equipment and ensure the roadway is placed at the correct elevation at the designed concrete thickness.

Additional media releases and detour routes are shown here.

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

2021 N Cedar StreetscapeWork this week included continued installation of sanitary sewer, storm sewer and watermain to get beyond the Rose Street intersection. A new large telecommunications structure was also replaced in the intersection of Rose Street and N. Cedar Avenue. Additional removals on Rose Street have also commenced. Sanitary sewer construction is now continuing down the 300 block with mainline and service connections being made. In order to maintain wastewater flow through the area, a bypass pumping system within the Pearl Street intersection has been set up and will be relocated as construction continues. 

Next week, the contractor will continue sanitary sewer and service installation along N. Cedar Avenue and anticipates the closure of the Pearl Street intersection on Tuesday to allow for pavement removals and the installation of the new sanitary manhole. Following this, storm sewer and watermain construction in addition to services will continue through the 300 block. The contractor will also be working along Rose Street with minor storm sewer installation, subgrade preparation and base placement.

The Owatonna Downtown Live Stream can be found on The 2021 North Cedar Ave Streetscape Project page!

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 Avenue: This week: On Monday and Tuesday of this week Northland Grading & Excavating worked on Sanitary Sewer construction. Starting at the intersection of Phelps St. & Truman Ave. they installed one (1) Sanitary Sewer Manhole structure at this intersection and then continued working Southward towards University St. installing 8” PVC Sanitary Sewer Main. No work was done on-site on Wednesday of this week as a result of the rain. On Thursday of this week, NGE worked on installing Water Main at the intersection of Phelps St. & Truman Ave. On Friday of this week, NGE worked on pouring the concrete inverts in the new Storm Sewer structures that have been installed on the project thus far. Items of work completed this week in Phase 2 of the project include: Removal of existing Sanitary Sewer main pipe, Installation of one (1) Sanitary Sewer structure, Installation of new 8” PVC Sanitary Sewer main, Removal of existing Water Main pipe, Installation of new 6” PVC & 8” PVC Water Main pipe, and Installation of two (2) new Water Main Gate Valves, and Installation of Water Main Fittings. 

Next week: Northland Grading & Excavating plans to begin next week working on getting Temporary Water Services hooked up and turned on for the block between Phelps St. & University St. along Truman Ave. After the Temporary Water Services are hooked up and turned on, they plan to begin working on new Water Main construction; starting were they left off this last week at the intersection of Phelps St. & Truman Ave. and work Southward towards University St. After they complete the installation of the new Water Main in this block, they plan to work on installing the new Water Main Services & Sanitary Sewer Services in this block. (Phelps St. to University St.) Northland also plans to work on sub-cutting the block from School St. to Phelps St. After sub-cutting is complete, they will begin prepping the subgrade and laying the rock subbase layers. Items of work planned for next week in Phase 2 of the project include: Removal of existing Water Main pipe, and Installation of new Water Main pipe, Gate Valves, & Fittings, and Installation of new Water Main & Sanitary Sewer services.  

Intersections affected: Northland Grading & Excavating will not be working in the Phase 1 portion of the project next week. Side-road access across Truman Ave. in the Phase 1 portion of the project at the intersections of Agnes St. and Academy St. will be open to traffic and residents via temporary ramps. Drivers are still encouraged to take alternative routes, if possible, to avoid construction activities in the Phase 1 portion of the project. Northland will be working in the Phase 2 portion of the project, from School St. to Prospect St. Side-road access across Truman Ave. at the intersection of School St. & Phelps St. will remain closed until construction of underground work items at these intersections is completed, backfilled, and aggregate sub-base has been placed. Side-road access at the intersection of University St. may be temporarily closed next week for work on Sanitary Sewer and Water Main. Side-road access across Truman Ave. at all other intersections along the project will continue to be maintained for traffic and residents. Drivers are encouraged to take alternative routes, if possible, to avoid construction activities on the project. 

2021 Overlay Project: The Contractor has completed the manhole replacements & adjustments. The concrete work (sidewalks, curb & gutter) is almost completed, and will be done within the next week. The edge miller will take down the edge of the asphalt (along the gutter) next week. The Street Department is then planning on overlaying new asphalt on the week of July 26th.

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.