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Willamette Falls Locks Facts & Links

Links for more information about the Locks:

Facts about the Willamette Falls Locks:

PERTINENT DATA....
TOTAL LENGTH 3,565
USABLE WIDTH 37'
TOTAL LIFT 50.4'
DEPTH OVER SILLS 6.5'
MAX. VESSEL LENGTH 175'
GATES 1-7, type 2 leaves, structural steel with wooden miter & quoin posts
GATES 1-7, size

gate 1: 30' 5.5" high x 20' wide
gate 2 through 7: 20' high x 20' wide


GATE NO. STATION ELEVATION (Tog) ELEVATION
1 10+00 23.82 -6.11
2 12+10 34.38 15.52
3 14+20 44.40 25.40
4 16+30 54.43 35.66
5 18+40 54.14 43.33
6 31+12 64.50 43.60
7 33+23 64.84 43.41

 

GATES, SLIDING structural steel, 4' each gate live, each 27" x 41"
SILLS all gate sills are concrete on rock masonry, except #1
SUMPS at gates 2, 3, and 4 are sumps in the bottom of the chamber, approximately 2 ft. square, used for unwatering when necessary
CANAL BASIN

(Between lock 4 and guard lock)

Length- 1250'
Width- 40-100' variable
Water level- Maintained constant
Paper Mill warf- 850 feet along right side of canal basin

RIVER STAGE FLUCTUATIONS Above Locks- 10' (12' in extreme conditions)
Below Locks- 20' (30' in extreme conditions)
WALL ELEVATION AND LIFT

Guard lock at upstream end is used only seasonally to maintain constant level of canal basin


LOCK#
LOCK WALL ELEVATION
LIFT OF LOCK
1
38.5
20.5
2
42
10.6
3
44.4
10
4
56.5
9.3

 


Content POC: Bonneville Dam Pagemaster, 541-374-8820 | Technical POC: NWP Webmaster | Last updated: 1/19/2007 1:48:34 PM

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