Attention: Due to COVID 19 restrictions Lock and Dam Tours will NOT include taking the elevator to the top of the Lock and Dam.

All Tours will continue to adhere to the security restrictions and safety guidelines listed in the section below

Please follow CDC guidelines on social distancing and the wearing of facial masks


  • Daily at 10 a.m., 1 p.m., and 3 p.m.
    (tours begin promptly)
  • Free
  • 45 minutes to one hour in length
  • Requires 1/4 mile walk and heights of approximately 80 feet
  • Public tours limited to 25 participants
  • Tours may be canceled due to maintenance work
  • Tours are not given in excessive heat (heat index over 100) or cold (wind chill of Zero)


  • Groups of 10 or more need to call the Alton Convention and Visitors Bureau at 1-800-258-6645 to arrange their visit.
  • Group tours available Daily at 9 a.m., 11 a.m., and 2 p.m.
  • Allow at least 1 1/2 hours to visit both the museum and locks and dam.
  • School/children groups require at least one adult chaperone per 10 students.
  • Student activity sheets are available to assist in the museum experience