MN State Capitol Restoration Update from Senator John C. Pederson

Update on the Minnesota State Capitol Restoration Project from Senator John C. Pederson


As many of you know, the state Capitol building has been undergoing a massive restoration effort since 2013. Significant deterioration of stone, risk of leaking pipes, lack of ventilation, and a disorganized proliferation of office space put the Capitol on the path where it would eventually be unable to serve the public or the legislative process. These issues have led to a massive restoration effort which spends $272.7 million on a three plus-years restoration, renovation, and repair initiative.

Interior Work
This is the first comprehensive preservation of the Capitol building since its original construction in 1905. When completed, this historic project will prepare our Capitol for the next 100 years. The highest priority for the restoration project is to update the infrastructure supporting the Capitol Complex. These projects include:

  • Replacing corroded plumbing system
  • Updating aged mechanical systems
  • Replacing outdated electrical systems
  • Modernizing technology systems
  • Increasing energy efficiency
  • Increasing the amount of public space
  • Improving access for all Minnesotans?

Demolition of interior walls to improve office space

Exterior Work
A rapidly deteriorating exterior had the potential for significant life safety and water management issues. Exterior repairs will minimize marble deterioration, keep water from leaking into and damaging the interior, and ensure life safety. The exterior elements of this project include:

  • Repairing the crumbling stone
  • Replacing deteriorated marble with new marble
  • Replacing the roof
  • Replacing windows with energy-efficient, historically accurate windows


Deteriorated marble fallen from columns Newly carved pieces to restore column design


Cracked marble in need of repair





Project Progress
Construction began in fall 2013 and will end in 2017. We are currently in Phase 3 of the project. See below for a description of the four phases of the project.

Phase 1: September 2013 - Begin abatement, demolition and preparation of basement.

Basement floor demolished

Phase 2: February 2014 - Begin to procure and construct mechanical, electrical, and plumbing infrastructure.

Large areas in Capitol closed off

Phase 3: June 2014 - Close and repair the West Wing's ground and first floors. Close and repair the entire East Wing.

Preparing rooms in the East Wing for construction

Phase 4: June 2015 - Close and repair the West Wing's second and third floors. Close and repair the entire North Wing. **The House and Senate chambers will be closed during this phase**

Scaffolding in the Capitol dome

A sequence of four construction phases helps minimize disruptions to the legislative process. It allows the Capitol to remain partially open to the public and the State to continue to conduct its business during regular legislative sessions.

The marble quarry being used for the current restoration project is the same quarry that was used for the original construction of the Capitol in 1905.

Want more Information?
All the details about the entire Capitol restoration project are provided to the public including information about public access, history, plans, pictures, project progress, and more. You can find this information by clicking here.

For more pictures of the Capitol restoration project, click here.