page_title: Willamette Falls Locks
section_title: Dimensions in 1873
hierarchical_section_title: Willamette Falls Locks / Completion and opening ceremony / Dimensions in 1873
caption_attribution_description: English: The sternwheeler Governor Grover, in the locks at Oregon City, March 1873.
context_page_description: The Willamette Falls Locks are a lock system on the Willamette River in the U.S. state of Oregon. Opened in 1873 and closed since 2011, they allowed boat traffic on the Willamette to navigate beyond Willamette Falls and the T.W. Sullivan Dam. Since their closure in 2011 the locks are classified to be in a "non-operational status" and are expected to remain permanently closed.
  Located in the Portland metropolitan area, the four inter-connected locks are 25 miles upriver from the Columbia River at West Linn, just across the Willamette River from Oregon City. The locks were operated by the United States Army Corps of Engineers and served primarily pleasure boats. Passage through the locks was free for both commercial and recreational vessels. The locks were added to the National Register of Historic Places in 1974.
  The locks comprise seven gates in four chambers which lift up to 50 feet elevation change with a usable width of 37 feet. The system is 3,565 feet long, and can accommodate vessels up to 75 feet long. Each of the four concrete constructed chambers are 210 by 40 feet.
context_section_description: Upon completion, the total length of the canal and locks was 3,600 ft (1,097 m), consisting of, from north (downstream) to south (upstream):
  the approach to the first, or north lock, 200 ft (61 m) and 50 ft (15 m) feet wide.
  four lift locks, each 210 ft (64 m) long and 40 ft (12 m) wide;
  the canal south of the lift locks, 1,273 ft (388 m) long and 60 ft (18 m) to 100 ft (30 m) wide;
  a guard lock 210 ft (64 m) long and 40 ft (12 m) wide;
  a canal and basin, 1,077 ft (328 m) and from 80 ft (24 m) to 250 ft (76 m).
caption: Sternwheeler Governor Grover in the locks, probably lock 3, in 1873.  The lock walls on the east side of the canal can be seen, as well as the masonry for the lock gates and the protective wooden fenders projecting above the lock walls.
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