Downtown OKC Underground Tunnel Guide

Published: November 28, 2016  by 

Downtown OKC Underground Tunnel Guide

In the heart of downtown OKC, you will find everything from our bustling business district to Bricktown’s eclectic nightlife and the scenic Myriad Botanical Gardens. But there is more to downtown OKC than meets the eye. Underneath our busy streets is a hidden network of tunnels called the Underground.

Constructed in 1974, the original “Conncourse” was designed and named after Oklahoma Hall of Famer, Jack Conn. In 2006, the tunnels underwent a $2 million dollar renovation designed by Oklahoman architect Rand Elliott, which included all new carpets, lighting, paint, and maps.  The Underground offers quick conveniences for the working Oklahoman like coffee shops, hair salons, and a post office.

The tunnels also offer indoor routes to a variety of parking garages which is useful during inclement Oklahoma weather. Recent updates, like neon lighting and local art installations, have enhanced the atmosphere of the tunnels. The Underground is open Monday-Friday, 6:00 a.m. – 8:00 p.m.

OKC Underground Tunnel Map

*Gray tunnels refer to access hallways.

Pink Tunnel

Connects the Cox Convention Center to the Sheraton Hotel

Art Gallery: OKC Sunrise, 2006 by Dr. Bob Palmer



Points of Interest:

  • Hot pink double doors, perfect for a photo op!
  • Bloom Coffee (beneath the Continental building – also features pantry staples for those forgotten lunch days!)

Best place to enter: Sheraton Hotel, 1 N Broadway Ave, Oklahoma City, OK 73102

Lime Tunnel

buzz-coffee-banc-first-green-tunnelConnects Banc First to the Orange Tunnel

Sometimes your lunch break just isn’t long enough to get all of your little errands done. After all, where can you stop for a coffee and scone, take cash out of the ATM, send your grandma a birthday card, get your eyebrows waxed, and get your hair cut all in one convenient place? The lime tunnel, friends. That’s where.

Photo Gallery: Oklahoma City Banking History

Points of Interest:

Best place to enter: Banc First, 101 N Broadway Ave, Oklahoma City, OK 73102

Orange Tunnel

orange-hallway-entranceConnects the Lime Tunnel to 101 Park Avenue and the Skirvin Hotel

Although the entrances are bright orange, this part of the tunnel is actually yellow, not to be confused with the neon yellow tunnel that immediately follows.

Art Gallery: Downtown Oklahoma City History

Points of Interest:

  • China Chef – Lunch Buffet 11:00 a.m. – 2:00 p.m.
  • FedEx Drop Box

Best place to enter: 101 Park Ave, Oklahoma City, OK 73102

Yellow Tunnel

Connects Orange Tunnel to the Sandridge Parking Garage

Art Gallery: Oil Exploration History

Best place to enter: Sandridge Parking Garage, 320 N Broadway Ave, Oklahoma City, OK 73102

Light Blue Tunnel

Connects Yellow Tunnel to Dowell Center/Purple Tunnel

Points of Interest:

Best place to enter: Dowell Center, 250 North Robinson Ave, Oklahoma City, OK 73102

Purple Tunnel

Connects Dowell Center to Green Tunnel

Art Installation: “We make our own mountains” by Jason Pawley & Sean Vali


Local artists, Jason Pawley and Sean Vali, recently transformed the purple tunnel into an expansive, mountainous escape with the addition of their mural, “We make our own mountains”. You may recognize their style from local murals that they have created throughout Oklahoma City under bridges and on the sides of buildings.

Best place to enter: No direct access

Green Tunnel

Connects Purple Tunnel to Plaza Parking and Leadership Square

Art Gallery: OKC Commerce History

Points of Interest:

Best place to enter: Leadership Square, 211 N Robinson Ave #400, Oklahoma City, OK 73102

Red Tunnel

Connects Plaza Parking / Green Tunnel to the County Office building and Blue Tunnel

Art Gallery: County Government History

Points of Interest:

  • Center for Economic Development Law
  • Office of Jon Goodman, Attorney of Law
  • Office of Jon McMurray, Attorney of Law

Best place to enter: County Office Building, 320 Robert S Kerr Ave #101, Oklahoma City, OK 73102

Blue Tunnel

Connects Red Tunnel to the Federal Courthouse and the Dowell Center Parking

Art Gallery: Federal Government History

Points of Interest:

Best place to enter: Dowell Center Parking, 433 N Harvey Ave, Oklahoma City, OK 73102

Ready to start exploring? Tweet @BigWingAgency to tell us about your OKC Underground adventures!

Like this? Read our other OKC Guides:

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Meet & Eat: Best Business Lunch Spots in Downtown OKC

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