Abbott Northwestern Hospital Care Pavilion

Project Details

Client: Mortenson
Location: Minneapolis, MN
Services:  Excavation, Building Demolition, Earth Retention, Site Utilities

Overview

The Abbott Northwestern Care Pavilion project is a key development aimed at expanding the Abbott Northwestern Hospital’s facilities to meet growing healthcare demands. The project involves the construction of a state-of-the-art care pavilion building, connected to the hospital’s infrastructure through several new features designed to improve access, workflow, and functionality.

The project includes the construction of a new skyway connecting the purple ramp to the Care Pavilion building, excavation work for the new foundations, and a new tunnel system to connect the Care Pavilion to the existing TAF (Technology and Administrative Facilities) building. The scope also involves underpinning existing structures.

Currently the largest scope of work on the project is the construction of a new cast-in-place tunnel. This is an essential feature of the Abbott Northwestern Care Pavilion project. This tunnel will connect the Care Pavilion building to the TAF building, facilitating the movement of utilities and providing additional access between the two structures under 28th street. Bolander is responsible for constructing the retention systems, underpinning the existing structures including micro piles and soil solidification and excavation for the tunnel. The tunnel construction process requires careful planning to not disrupt hospital functionality. This phase of construction is critical due to the need to work between two important buildings without disrupting the ongoing operations of the hospital.

While Bolander has completed projects like this in the past this tunnel project has some unique features that have made it challenging to both design and excavate. An example of the complexity includes supporting an Xcel duct bank that is encasing a transmission line servicing a large portion of Minneapolis that cannot be taken out of service. The section of concrete duct bank that is being supported temporarily is 4’-6” wide x 2’-6” tall and spans 64’.  With all the beams needed to support this duct and the other utilities running over the tunnel excavation with traditional methods is near impossible. To remove material in this area Bolander purchased a small conveyor system to speed up the process.

Cotter School Demolition

Project Details

Client: Schwab Construction
Location: Winona, MN
Services: Building Demolition

Overview

We partnered with Cotter Schools and Schwab Construction to make way for a new athletic facility in Winona MN.

Crews demolished a 217,000 square foot, 98-year-old building known as Lourdes Hall that functioned as the primary dorm facility for the College of Saint Teresa, a Catholic women’s school.  Built in 1928, Lourdes Hall featured a swimming pool, large dining hall, fitness center, and scores of dorm rooms.

The building eventually became a dorm facility for Winona State University’s “West Campus” in the 1990’s and closed in 2021 when WSU consolidated operations.

While some Winonans argued the building should be saved for its historic value, the building’s condition and structural layout made its renovation economically infeasible.

Once the building is gone and the site is cleared, Schwab construction will begin construction on a new “Field House” athletic complex with an indoor turf field, hard court surfaces, and a walking and running track.  The future athletic complex will provide valuable shared space for youth programs, local teams, and residents seeking a place to stay active—no matter the season.

Cotter President, Mary Eileen Fitch states “This space will enhance student learning by supporting physical education, co-curricular programs, and intramural programs that support positive social and physical development. It is a meaningful investment in Cotter’s mission and will create opportunities for young people to grow, lead, and thrive—both in and out of the classroom.”

Bolander is proud to be part of this great project!

Xcel Energy – Chestnut Service Center

Project Details

Client: Knutson Construction
Location: Minneapolis, MN
Services:  Excavation, Building Demolition, Earth Retention, Site Utilities

Overview

In Fall of 2022, Knutson Construction award the Xcel Energy Chestnut Service Center to Bolander.  Our scopes of work include Building Demolition, Earth Retention, Excavation, & Site Utilities.  The sequence of our work needed to be structured in a manner to allow Xcel Energy to maintain its current operation at this facility.  This was a significant challenge due to the limited space on site.

This first phase of the project consisted of the partial demolition of the annex building and associated site work.  The annex building remodel had to be completed to allow Xcel to utilize this facility before the project could move on to the next phase of work.  Bolander & Knutson were able to deliver the remodeled annex building ahead of schedule.

We are now actively working on the final phase of the project.  This phase of work began with the demolition of the existing main office building.  This building had a footprint of over 80,000 square feet and was over 60 feet high in some areas making this one of the biggest building demolition projects in Bolander history!  Bolander safely brought this building down on schedule.  To remove the building foundation, we had to install a significant driven H-Pile & Lagging Earth Retention System in sequence with the building demolition.  Our Deep Foundations and Demolition personnel were able to work collectively to achieve this common goal.

After being awarded this project, we were informed that the soils on this project were contaminated.  Some of the areas on the site contained soils that contained hazardous levels of PCBs.  Thanks to training and certifications obtained by our Bolander team members, we were able to work with Xcel and Knutson Construction to safely export this material from the project.

This project is another fine example showcasing the multiple talents of the men and women of Bolander and what can be accomplished when we all work together!

St. Luke’s Ramp

Project Details

Client: Erdman
Location: Duluth, MN
Services: Select Demolition, Drilled Piers

Overview

Bolander began work in 2023 for the St. Luke’s Hospital in Duluth, MN. Our scope of work started with the Demolition package, but Bolander’s Demo crew provided such a level of service that Erdman felt compelled to add the drilled pier scope of work to our contract as well. The project consisted of demolishing the existing parking ramp to build a larger parking ramp in it’s place. The demolition work needed to be methodical and well thought out as to not disturb the adjacent hospital building. And the Drilled pier work had to react to, and manage, the varying conditions and rock elevations throughout the site. Bolander’s Scope of work was completed in late 2023. The project was a great success for our company and it received many compliments from people that work in the Duluth area

The Heights

 

 

 

 

 

 

 

 

 

 

 

Project Details


Client: St. Paul Port Authority
Location: St. Paul, MN
Services:  Demolition, Earthwork

Bolander began work in August of 2023 on one of Saint Paul’s largest site developments on the east side of the city. Located on the previous Hillcrest Golf Course, this civil development spans across the 112-acre site. Bolander’s scope of work at the site included the demolition of the existing golf course structures, site removals, soil remediation, soil corrections, and mass grading. This project is still ongoing, but crews are slated to be completed with our work during the 2024 construction season.

Project Highlights:

  • Excavation and Export of over 105,000 Tons of Mercury contaminated soil from the site
  • Excavation and Export of over 330,000 CYLV from the site to achieve site grades
  • Design-Build RSS Walls proposed by Bolander will be starting this summer. Integration of the RSS Walls saved money as well as reduced lead time of the originally designed concrete walls.

 

https://sppa.com/theheights

St. Paul Public Safety Annex Building Demolition

Project Details

Client: St. Paul Public Safety
Location: St. Paul, MN
Services: Demolition

Overview

For more than a decade the future of Saint Paul’s ‘Pedro Park’ was up in the air.

14 years after the Pedro family bequeathed the site of their three-generation family business “Pedro Luggage” to the city for use as a park, Bolander was awarded the demolition of the adjacent building, Saint Paul’s Public Safety Annex, a four-story cast in place concrete building that was constructed almost a century ago.

The demolition of this building was the final piece of the puzzle to make way for the future .87-acre Pedro Park, taking up almost ½ a city block, the park will eventually feature walkways, open lawn space, public art, a fenced dog run and more.

The demolition project started with more than a quarter million dollars for removal of asbestos, lead, regulated waste, chemicals, PCB’s and old fuel tanks.

An areaway that runs under the 10th street sidewalk was completely filled with concrete lean fill to make sure the space would not collapse and could hold the loads of the adjacent road once the building structure was demolished.

Once the building was ready for physical demolition, Bolander’s 230,000 lb Liebherr 960 high reach demolition machine began chewing through the stout cast in place concrete building.  The building that previously housed some of Saint Paul’s Police department including heavy armored vehicles on two levels contained thousands of tons of concrete and heavy steel rebar.

Reducing the building to rubble was a great team effort by many members of Bolanders Demolition Team led by General Superintendent Dave Durand and Site Sup Eric Tuckner.  Once the building was gone, our Earthwork crews led by General Earthwork Superintendent Justin Degnan and Site Sup Justin Coleman brought in close to 10,000 cubic yards of soil from various other projects to create an interim green space that will be used by the public beginning this fall until the final park design is completed and fully funded.

Carl Bolander and Sons was proud to take part in making way for a new chapter of this area of our hometown at the corner of 10th St east and Robert Street.

Northrop Auditorium

Project Details

Client: JE Dunn
Location: Minneapolis, MN
Services: Select Demolition, Deep Foundations, Excavation

Overview

Historic Northrop Auditorium was constructed in 1929 and serves as a popular theatrical and performing arts venue on the campus of the University of Minnesota.  Bolander provided selective and structural demolition, excavation, and deep foundations within this iconic facility.

The work included complete demolition of the interior structures back to the exterior walls and roof. During all the work, the historic and irreplaceable Memorial Hall was protected from vibration and damage.  The entire existing balcony structure was removed upon execution of a sequenced demolition plan to included temporary structural bracing.

Underpinning work at Northrop allowed 16 of the original pad footings be replaced with pile caps to allow heavier future loads.  Utilizing micropiles, Bolander literally lifted and held existing structural columns supporting the building while structural retrofit occurred.  Bolander performed this work on a design-build basis and created detailed work plans to facilitate engineering and field coordination.

Bolander demolition expertise at Northrop earned a spot as a finalist at the 2011 World Demolition Awards in Amsterdam.

Bolander underpinning work at Northrop was featured at the National Council of Structural Engineers Associations 2013 Annual Conference.

35W Bridge Collapse Clean-Up

Project Details

Client: MNDOT
Location: Minneapolis, MN
Services: Recovery, Removals, Demolition

Overview

On August 1st, 2007 the I-35W Bridge in Minneapolis devastatingly collapsed and on August 4th, 2007 Bolander was contracted to remove the bridge components and piers to two feet below grade. This work was conducted under the supervision of the NTSB (National Transportation and Safety Board), MNDOT Bridge Department, and their Independent Engineers. There were many other authorities involved in the coordination of this work including the City of Minneapolis, State Highway Patrol, Hennepin County Sheriff, FBI, U.S. Navy, Coast Guard, Army COE, Federal Highway Administration and a large participation from State, Contractor, and Federal OSHA on site daily.

The first phase of the project was to assist in the recovery of five victims that were missing, and removal of all the vehicles, eighty-eight cars, six semi-trucks and construction equipment and personal items from the bridge. This could only be done when allowed by the Navy, as they did not want to endanger divers in the water should the bridge move or shift. We simultaneously worked multiple operations for removing the bridge. These operations were the river operations, the North and South approaches. The river operations required the use of barges, boats, divers, and crews for rigging, separating, and hoisting the material. The material was then moved down river to a staging area.

The next phase was the removal of the bridge material. All work areas had to be released to us in writing from DOT before we could start. The areas were only released after the NTSB, WJE, and DOT had completed their initial investigation on each section. Bolander removed material from the approaches.  It was hauled off site and recycled or staged for future use by MNDOT. The work required the utilization of cranes, excavators, loaders, man lifts, and miscellaneous other tools in each of the three areas of operation. Once the debris was removed from the river the channel was dredged and cleared for use.

As crews dismantled the 2,000 foot long bridge, every piece was photographed, labeled and cataloged prior to cutting or moving. Pieces of the bridge where then sent to one of three places depending on their importance as evidence in the ongoing investigation, some going as far away as Washington. In less than three months, Bolander crews removed 4,000 tons of steel and 10,000 tons of concrete by working 12 hours per day, six days per week. Carl Bolander & Sons logged over 30,000 hours on the bridge project without a single lost time accident.

Mayo Colonial Building Demo

Project Details

Client: Mayo Clinic Foundation
Location: Rochester, MN
Services: Demolition

Overview

Bolander was selected by the Mayo Clinic Foundation to perform the complete Building Demolition of the 7 story Colonial Building. The Colonial Building was one of the first original Mayo buildings in Rochester. The location of this project is at the heart of Rochester and Mayo Clinic.

Once complete, the new Mayo Proton building will take its place. This will be a 110,000 Square-foot expansion for Proton radiotherapy which is a more technically advanced cancer treatment.

The most technical aspect of this project is working alongside multiple other projects taking place, in this crowded working area. These projects being the first avenue tunnel expansion and the new Mayo Logistics building. Also, we are working alongside the active Eisenberg building which is a major MRI and surgery wing of the Mayo Clinic.

 

TCAAP

 

Project Details

Client: Ramsey County
Location: Arden Hills, MN
Services: Building Demolition, Excavation

Overview

The Twin Cities Army Ammunition Plant (TCAAP) is a former US Army ammunition plant built in the 1940’s to support World War II.  At one point this area employed over 20,000 people producing small caliber rounds.  After supporting the war it was eventually mothballed, redevelopment proved difficult due to extensive environmental pollution despite a few partial remediation efforts.

The full clean-up effort was completed by Bolander between 2013 to 2016 for Ramsey County.  Work was completed under a Contractor-At-Risk contract for demolition and remediation.  Atypical for environmental remediation, this contract put Bolander and our partner, Wenck, at risk for all overruns on known area of contamination for the site.  As part of the county’s purchase agreement, the US Army maintained liability for any unknown areas of contamination.  This unique contract structure allowed financing to move forward, eliminating concerns of overruns on this high risk scope of work.

All demolition and work has been completed. In 2015, Bolander was recognized for this effort by the National Demolition Association in winning the Environmental Excellence Award.  Bolander received the Certificate of Completion form in 2016 from the Minnesota Pollution Control Agency, clearing the way for the redevelopment and delisting this portion of TCAAP as an EPA superfund site.

Bolander’s significant environmental remediation of the site included removal of the following items:

  • 140,000 tons soil removed
  • 8,000 ton of PCB impacted soil removed.
  • 3,000 ton PCB impacted concrete removed
  • Mercury impacted concrete and drains
  • 29,000 ft of Asbestos piping
  • Regulated Waste
  • Asbestos Window Glazing, caulking, pipe wrap

Demolition of site included the following:

  • 22 remaining structures and foundations
  • 6 building foundations
  • 40,000 lf storm sewer
  • 38,000 lf sanitary sewer
  • 50,000 lf water main
  • 42,000 lf fence
  • 37,000 lf gas main

The extensive nature of the site and existing infrastructure allowed Bolander to conduct a massive recycling and salvage operation. 93% of the materials removed from the site were recycled or reused in new roadways there and in other parts of the Twin Cities.  An estimated 13,000-plus tons of steel and more than 400,000 tons of concrete and asphalt were recycled and reused, along with Crumpled steel girders, bails of rebar, mounds of misshapen concrete chunks, stacks of 2x12s and thick Douglas fir timbers.