after the new bridge was built, the old bridge was demolished but the western approach (the trestle span up to the original truss spans) was purchased by the county of san mateo in 1968 for the nominal sum of and retained as the werder fishing pier, which was known as one of the best places to catch sharks in san francisco bay. san mateo county operated werder pier under a lease agreement with caltrans, which stated that caltrans may temporarily revoke the lease in order to perform use the pier as a staging area for repairs to the 1967 span, and that san mateo county must maintain the pier and keep it open for public use for twenty-five years.