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Satellite)
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USACE
The dam "is 3,200 feet [975m] long with an effective height of about 100 feet [30m]. It is a concrete gravity dam with an earthfill abutment embankment." |
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USACE_article
This USACE page specifies a length of 2,655' (809m) and a height of 149' (45m).
The powerhouse has six units of 135mw each. The hydraulic capacity is 130kcfs, and the spillway capacity is 850kcfs.
"In 2015, more than 1.9 million tons of cargo passed through the Little Goose lock." |
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USACE_photo, cropped
"The dam is 2,655 feet long with an effective height of about 100 feet. It is located on the Snake River near Starbuck, Wash., and upstream of Lake West, the reservoir formed by Lower Monumental Dam. It is a concrete gravity dam with an earthfill abutment embankment. It includes a navigation lock and eight-bay spillway 512 feet long, which has eight 50 feet by 60 feet tainter [Parker] gates." |
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cbr, credit USACE Image File Number: 4414-48
6 units @ 135mw = 810mw |
The thing that looks like a conveyor belt between the powerhouse and the lock is the fish ladder.
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USACE
"The dam, located on the Snake River, is 3,200 feet [953m] long with an effective height of about 100 feet [30m]. It is a concrete gravity dam with an earthfill abutment embankment." |
Rather than open each
radial gate a little bit, they open one gate all the way. I think flow at the far end of the spillway is from an outlet conduit.
This view shows part of the fish ladder.
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| Same Reel |
A wide open gate creates some impressive water turbulence.
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| Same Reel |
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