Jesus Lock is a lock on the River Cam in the north of central Cambridge, England. This is Lock No. 1 on the navigable portion of the River Cam. It was built in 1836 and is the only lock in the city. Jesus Green Lock Cottage, the former lock-keeper's cottage, is by the lock on Jesus Green. It is owned by the Conservators of the River Cam and is rented out to students.
The lock is located north of Jesus Green, which itself is north of Jesus College, hence the name. To the north of Jesus Lock is Chesterton Road. From Wikipedia