Hercules' City Street Maps
  Maps of the city streets are available without cost
  from the Hercules Chamber of Commerce. 

  You may pick one up at the Chamber Office:
Sycamore Place, 1500 Sycamore Avenue, Suite B9-C, Hercules, CA 94547.

  Copies are also usually available in the lobby
  of City Hall, 111 Civic Drive.