The Journey to the Top tram rides have been temporarily suspended while crews work to upgrade the tram's electrical system and replace the motor generator sets.
Tram rides will resume in spring 2017.
Viewer photos: 51 years of the Gateway Arch
During the closure, visitors will still be able to access the Arch Visitor Center, the Arch Store, and the Monument to the Dream documentary. The Old Courthouse will continue to operate normally.
More information about the Gateway Arch can be found at www.gatewayarch.com.