• Looking up at the Gateway Arch


    National Expansion Memorial Missouri

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  • Pedestrian Access to the Gateway Arch From Downtown

    Pedestrian traffic on the Chestnut bridge will be closed as of today Monday, March 31, 2014. This will leave the Pine St. bridge as the Arch grounds point of entry to and from the city. The new Walnut St. bridge will open next Friday to foot traffic.

Social Media Connections

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Join the Conversation!


Stay connected and learn what is happening at Jefferson National Expansion Memorial. You will be able to share with us and others your experiences at the Gateway Arch and Old Courthouse. We want to connect with you-and keep you connected to us, by meeting you at the places where you are and expect us to be.

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Be our friend on Facebook! Even if you don't have a Facebook account, you can still see all the content on the Jefferson National Expansion Memorial Facebook page. Occasionally, we'll ask a thought provoking question, tell you "what is happening now," engage in conversations, and post photos and videos.

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See our photos on flickr! Make tags and comments. Get photos you can use. Can you help us identify construction workers in our historical photos?
Park flickr site (photos of the park as it is today, current events)
Archives flickr site (historical photos)


Meet the Team - Ever wonder who is behind those initials on Facebook? Meet the park's social media team!

Did You Know?

Dinosaur cartoon

On September 10, 1804 on Cedar Island, in South Dakota, William Clark discovered the fossilized remains of the ribs, backbone and teeth of a plesiosaur. Plesiosaurs were animals who lived at the same time as the dinosaurs, but swam rather than walking on land. Clark thought it was a giant fish bone! More...