Английская Википедия:Cascade Locks and Canal
The Cascade Locks and Canal was a navigation project on the Columbia River between the U.S. states of Oregon and Washington, completed in 1896. It allowed the steamboats of the Columbia River to bypass the Cascades Rapids, and thereby opened a passage from the lower parts of the river as far as The Dalles. The locks were submerged and rendered obsolete in 1938, when the Bonneville Dam was constructed, along with a new set of locks, a short way downstream.[1]
Design and construction
As rail competition grew, and forced steamboats off their old routes, shippers and steamboat lines began agitating Congress to allocate funds for improvements to the river, in the form of canals and locks, that would restore their competitive position relative to the railroads. The two main improvements sought on the Columbia were the Cascade Locks and, about twenty years later, the Celilo Canal and Locks.
Studies for a canal at the Cascades had begun in 1875, but interest tapered off when Oregon Railroad and Navigation Company (O.R.& N.) finished the railroad to The Dalles and took its boats off the middle river. Anti-monopoly shippers eventually got Congress to allocate funds in 1893 to begin the canal and locks at the Cascades, which were completed in November 1896. The locks had a lift chamber carved in solid rock Шаблон:Convert long, and 90' wide, with Шаблон:Convert of draft, deep enough for any vessel then on the river, and large enough to accommodate several at once. The locks could raise a vessel 14' at high water and 24' at low water.[2]
The lock gates were Шаблон:Convert wide and Шаблон:Convert high. The locks were carefully designed to address the great variation in the height of the river, the difference between high and low water being Шаблон:Convert. This condition made it necessary to build a series of three sets of gates, increasing in height from the lower entrance to the huge upper guard gate, only two sets being used at one time. When the river was low, the upper guard gates remained open continually and the lower sets were operated. When the water rose enough to drown the lower gates, they were swung open and the lifting work was done by the others. The upper approach was formed by masonry wall extending from the guard gate in a long sweep of Шаблон:Convert, and the bank behind was armored against floods with riprapped stone.[3]
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Cascade Locks, circa 1897, looking east, locks are functioning but bank work is still ongoing
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Cascade Locks, circa 1897, looking south and downriver across lower lock
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Cascade Locks, circa 1897, looking south, showing middle lock and lockmaster and engineer buildings on embankment on south side
Effect on river traffic
In an 1897 article written shortly after their completion, Scientific American was optimistic about the future of the locks, saying: Шаблон:QuoteШаблон:Dead link
As it turns out, completion of the locks and the Шаблон:Convert canal leading from the east end of the locks, produced some increase in traffic,[4] but not as much increase in riverine traffic as had been hoped. The North Bank railroad was also completed along the Columbia, which took more business away from the boats. As a result, the Regulator Line, which had been running Dalles City, Regulator, and Bailey Gatzert on the lower Columbia, and, through the locks, on the middle Columbia, sold out to James J. Hill, owner of the Great Northern and other railroads. Not long later, in 1912, the Panama Canal Act made it illegal for a railroad to be owned in common with a competing steamboat line, so in 1915, Great Northern sold its boats.[5]
Current status
The lower lock and the canal were flooded when the Bonneville Dam was completed in the 1930s. The upper part of the higher lock is still visible and part of Cascade Locks Marine Park in the city of Cascade Locks, Oregon. The park is listed on the National Register of Historic Places.
See also
- Celilo Canal
- Columbia Gorge
- Fort Cascades
- Steamboats of the Columbia River
- Shaver Transportation Company
References
External links
Photographs
- Construction of Cascades Locks, 12/01/1883Шаблон:Dead link
- Looking east toward Cascades Locks, 1914Шаблон:Dead link
- Dalles City, Regulator and another, unidentified, sternwheeler passing through Cascade LocksШаблон:Dead link
- Charles Spencer near Cascade LocksШаблон:Dead link
- Maria, Dalles City, Harvest Queen and Sarah Dixon waiting to lock through on the opening day of Cascades Locks, November 8, 1896
- tinted postcard showing Bailey Gatzert entering Cascade Locks from the east
- Cascade Locks from the west, possibly taken from the Bridge of the Gods
- photo looking upriver showing Bridge of the Gods with Cascade Locks on right
- Dalles City, Regulator', and one other steamboat in Cascade LocksШаблон:Dead link This photograph clearly shows the size of the locks in comparison to the size and number of boats in them.
Шаблон:Steamboats Pacific Northwest
Шаблон:National Register of Historic Places Oregon
- ↑ Columbia River History, Northwest Power and Conservation Council. Accessed January 11, 2008.
- ↑ Newell, Gordon R., ed., H.W. McCurdy Marine History of the Pacific Northwest, at page 5, Superior Publishing, Seattle, WA 1966
- ↑ "Cascade Locks," Scientific American, page 167, March 13, 1897Шаблон:Dead link
- ↑ McCurdy, at 5
- ↑ Timmen, Fritz, Blow for the Landing, at page 32-36, Caxton Printers, Caldwell, ID, 1972 Шаблон:ISBN
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