The Dresden Island Lock and Dam is a 23.4-acre (9.5 ha) Lock and Dam complex on the Illinois River in Morris, Illinois.

The dam was completed in 1933 and designed by engineer Walter Mickle Smith.

[1] The lock and dam complex includes an arched gravity dam, a spillway, nine Tainter gates, 18 headgates, and a section of fill dirt connecting the headgates to the embankment of the Illinois & Michigan Canal.

[2] The state of Illinois began constructing the dam in 1928.

[2] The Dresden Island Lock and Dam is documented in a Historic American Engineering Record.