- Associated Press - Sunday, March 27, 2016

OKLAHOMA CITY (AP) - Worked is scheduled to begin this summer to repair and renovate Oklahoma’s historic Capitol building. Details of the project:

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COST: Estimated at $245 million; $120 million in bonds authorized by Oklahoma Legislature and another $125 million bond issue pending.

DURATION: Exterior work to begin in July and taken an estimated 3.5 years; interior work to begin in September and take an estimated six years.

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EXTERIOR REPAIRS

- Eleven levels of scaffolding to be erected.

- Repair 21 miles of mortar joints.

- Repair 240 cracked or damaged stones.

- Restore 477 windows.

- Restore 43,000 pounds of cast iron.

- Expand exterior loading dock

- Replace exterior doors

- Partial roof replacement

- Repair exterior stairs, plazas, sidewalks and battlements.

- Repair east tunnel

INTERIOR REPAIRS

- Replace 3,600 linear feet of plumbing piping.

- Replace 4.55 miles of heating, ventilation and air conditioning piping.

- Replace 13,500 of ductwork.

- Remove 460 tons of hazardous asbestos-containing material.

- Remove 65 miles of abandoned cabling.

- Add 420 tons of cooling to provide air conditioning to the Capitol rotunda.

- Add natural gas service to power new emergency generators.

- Add of a new visitor entrance on the southeast corner of the building.

- Replace and enhance fire alarms and add fire suppression systems.

- Add stairwells at dead end corridors to address fire code issues and improve vertical access.

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