OKC Underground is a public, climate-controlled network of pedestrian tunnels and skywalks beneath and between downtown office buildings at 300 N Broadway Ave, Oklahoma City, OK 73102, in the central business district. Opened in 1974 as the Conncourse, the roughly one-mile passage system crosses more than 20 downtown blocks; travelers come for its color-coded corridors, rotating photo displays and an unusual route through the working core of Oklahoma City.
What to Expect at OKC Underground
This is not a ticketed museum or a former shelter: it is an everyday downtown pedestrian system, managed by the Downtown Business Improvement District and Downtown Oklahoma City Partnership. Enter during weekday hours and follow the signed corridors connecting office towers, lobbies and parking facilities. The enclosed route is particularly useful in Oklahoma’s summer heat, winter wind and rain, while also offering a quieter way to see the city’s commercial architecture from below street level.
Look for the Underground’s brightly painted tunnel sections and changing photo galleries and art installations along the walls. The experience is self-guided rather than a formal tour, so it works best as a purposeful walk between downtown stops. Begin near Broadway, use the posted maps to orient yourself, and allow time to surface at street level: the contrast between subterranean corridors, early-20th-century towers and newer civic development is part of the appeal. Photography for personal use is well suited to the public corridors; be considerate around office entrances and security-controlled building areas.
- 1974 Conncourse: The original name of this downtown connection system, which later became known as the Underground.
- One-mile route: A substantial indoor walking network spanning more than 20 blocks of central downtown.
- Color-coded corridors: Brightly painted passages make wayfinding and photographs more engaging than a conventional office tunnel.
- Photo galleries and installations: Rotating wall-based displays bring local art into the daily commuter route.
- Skywalk connections: The system combines underground passages with elevated links between downtown buildings and garages.
OKC Underground at a Glance
| Detail | Information |
|---|---|
| Address | 300 N Broadway Ave, Oklahoma City, OK 73102 |
| Neighborhood / Area | Downtown Oklahoma City central business district |
| Operating Hours | Monday-Friday, 6am-8pm; closed Saturday and Sunday, plus New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas Day |
| Admission / Price Range | Free public access; no ticket required |
| Recommended Visit Duration | 30 to 60 minutes, longer when using it between downtown stops |
| Nearest Transit / Parking | Downtown streetcar stops and EMBARK bus service are within a short walk; connected and nearby downtown parking garages are available |
| Official Website & Phone | Downtown OKC Underground; 405-235-3500 |
Visiting Tips, Getting There & Nearby Pairings
Arrive shortly after the 6am opening for the calmest walk and clearest photographs, or use the network during the workday as a sheltered shortcut. No reservation is needed and there is no admission desk. Start from the Broadway Avenue area, then consult the installed map before committing to a long route; individual connections lead into occupied office buildings and may have different security arrangements. The closest practical public-transport option is the downtown Oklahoma City Streetcar, with the Library stop near Park Avenue, while EMBARK buses serve the surrounding downtown streets.
Downtown garages connected to or near the system are the most convenient choice for drivers; check the official Downtown OKC parking information for current locations and rates. Much of the main route is indoors and level, but entrances and building connections vary, so wheelchair users, stroller users and anyone avoiding stairs should use accessible building entries and elevators where posted. Within a 5-to-15-minute walk are the historic Skirvin Hilton on Park Avenue, Myriad Botanical Gardens and Scissortail Park to the south, plus the restaurants and bars around Film Row and Automobile Alley.
Frequently Asked Questions
What are OKC Underground’s hours, and when is the best time to go?
The Underground is open Monday through Friday from 6am to 8pm and is closed weekends and designated federal holidays. Go early in the morning for a quieter route, or visit in the middle of a weekday when you want an indoor break from Oklahoma weather.
Does OKC Underground charge admission or require reservations?
Access is free and self-guided, with no ticket or reservation required. It is a public downtown circulation network, not a timed-entry attraction, though normal building-security procedures apply at connected properties.
How much time should I budget for OKC Underground?
Set aside 30 to 60 minutes to follow several corridors, see the art displays and take photographs. Allow longer if you are using the one-mile system as part of a walk between downtown hotels, offices, restaurants and street-level landmarks.
Is OKC Underground accessible for wheelchairs and suitable for families?
The principal passages are indoor and generally level, and accessible building entrances and elevators provide the best route where connections change levels. Families will find it free and weather-protected, but children should stay close because it remains an active weekday commuter environment rather than a staffed play attraction.
When planning your Oklahoma City travel guide or browsing verified attractions in Oklahoma City, pair this stop with standout local spots including Oklahoma City National Memorial & Museum, Museum of Osteology, The Press, and The Skirvin Hilton Oklahoma City (0.1 km away).
