Lock & Dam No. 2

1350 Lock and Dam Road, Hastings, MN

The only dam in the St. Paul District with a hydroelectric facility



Lock & Dam Road is found in a residential neighborhood on W 2nd Street.

Photo taken by J.R. Manning in July 2019




Lock and Dam No. 2 is located on Mississippi River mile 815.2, upstream of Hastings, Minnesota and 635.2 miles above St. Louis. It was constructed in 1930 but the lock walls settled and tilted. As a result, a second lock was constructed in 1948. The lock is 110 feet wide by 600 feet long.

The site underwent major rehabilitation from 1987 to 1995, at which time a hydroelectric plant was added.

The dam consists of a concrete structure 722 feet long with 19 tainter gates that are 30 feet long. The power plant is a 4.4-megawatt hydroelectric plant that is owned and operated by the city of Hastings. It is the only facility of its type at a lock and dam in the St. Paul district.

There is also an earthen embankment 3,000 feet long.

The site has a public observation deck that overlooks the lock for watching locking operations. The deck and restrooms open from dawn until dusk each day from mid-April through late-October.

Update Log 

  • July 19, 2019: New photos from J.R. Manning
  • July 19, 2019: Added by J.R. Manning


  • J.R. Manning - Lugnuts969 [at] gmail [dot] com