Hours of Operation:
Monday-Friday, 6 am – 8 pm
Closed for the following federal holidays:
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- New Year’s Day
- Memorial Day
- Independence Day
- Labor Day
- Thanksgiving
- Christmas Day
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MAP:
NOTICE- Effective March 9, 2026
A portion of the Downtown OKC Underground is temporarily closed for maintenance. The closure affects sections of the Green Hall and Purple Hall corridors (see map below).
During this time, pedestrian passage through this section of the tunnel will not be available. However, all public and private building entrances within the Underground remain accessible. Individuals traveling through the system will need to exit at the designated locations shown on the map and use street-level routes to reach their destination before re-entering the Underground, if needed.
We appreciate your patience while this work is underway. This page will be updated once the affected sections of the Underground have reopened.
If you have questions or experience any issues accessing the Underground during this time, please contact Downtown OKC Partnership at 405-235-3500.
Downtown OKC’s Underground (formerly known as the Conncourse) is a series of tunnels and skywalks that connect a large part of the downtown buildings and parking garages. Opened in 1974, the tunnel system is about one mile long and covers more than 20 square blocks.
Today, the Underground is managed by the Downtown Business Improvement District and Downtown Oklahoma City Partnership and is open to the public from 6 a.m. to 8 p.m., Monday through Friday. The tunnels provide direct connections to many other buildings in the area, and The Underground hosts many photo galleries and art installations.
To learn more about The Underground, call (405) 235-3500.
Downtown OKC Green Team
Contact the Downtown OKC Green Team for Underground safety concerns
