Lewis and Clark's Columbia River
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Lewis & Clark's Columbia River - "200 Years Later"
"Trestle Bay, Oregon"
Includes ... Trestle Bay (Jetty Lagoon) ... Clatsop Spit ...
Image, 2009, Trestle Bay, Clatsop Spit, Oregon, click to enlarge
Click image to enlarge
Caspian Terns, Trestle Bay, Clatsop Spit, Oregon. Weather overcast and grey, but surprisingly no rain. Image taken August 8, 2009.


Trestle Bay (Jetty Lagoon) ...
The 1.5-mile-long Trestle Bay (a.k.a. "Jetty Lagoon") is located on the eastern side of Clatsop Spit, between Point Adams and the tip of Clatsop Spit.

From the NOAA Technical Memorandum NMFS-NWFSC-39 (January 2000):

"... Trestle Bay is 11.3 RKm (river kilometers) upstream from the mouth of the Columbia River in Oregon. The 244-half-acre bay consists of shallow subtidal and intertidal mudflats and intertidal marsh habitats. Trestle Bay formed as a result of the initial construction of the Columbia River south jetty which took place from 1885 to 1895. Sand accumlation around the jetty created the bay, which is surrounded by land on the west, south, and east sides and separated from the mainstem of the Columbia River by a 2,683-meter rock jetty along the north side. ..."

"... In August 1995, the jetty was modified by removing a 152-meter section of rock, creating an unobstructed passageway between the bay and the lower Columbia River estuary. This allowed better flushing and made Trestle Bay available as foraging habitat for many marine and estuarine fishes and shellfish, and ultimately reestablished the bay as an integral part of the lower Columbia River estuarine ecosystem. ..."

Early names for Trestle Bay were "Conomly Lagoon" and "The Lagoon". While common usage calls the bay "Trestle Bay", the official name, as of 1979, is "Jetty Lagoon" (USGS Geographic Names Information System website, 2009).


Image, 2009, Trestle Bay, Clatsop Spit, Oregon, click to enlarge
Click image to enlarge
Trestle, Trestle Bay, Clatsop Spit, Oregon. The South Jetty is visible behind the old Trestle, and the Washington end of the Astoria-Megler Bridge is in the background. Weather overcast and grey, but surprisingly no rain. Image taken August 8, 2009.
Image, 2009, Trestle Bay, Clatsop Spit, Oregon, click to enlarge
Click image to enlarge
Gulls, Trestle Bay, from Clatsop Spit, Oregon. The South Jetty is visible with the old Trestle behind it. Weather overcast and grey, but surprisingly no rain. Image taken August 8, 2009.


From the Journals of Lewis and Clark ...

Clark, ...
 




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*River Miles [RM] are approximate, in statute miles, and were determined from USGS topo maps, obtained from NOAA nautical charts, or obtained from the U.S. Army Corps of Engineers website, 2003

Sources: "Columbian.com" website, 2009; NOAA National Marine Fisheries Service, NOAA Technical Memorandum NMFS-NWFSC-39, Biological Surveys of the Trestle Bay Enhancement Project, 1994, 1996-97, January 2000; NOAA Office of Coast Surveys website, 2006; U.S. Geological Survey Geographic Names Information System (GNIS) website, 2009.

All Lewis and Clark quotations from Gary Moulton editions of the Lewis and Clark Journals, University of Nebraska Press, all attempts have been made to type the quotations exactly as in the Moulton editions, however typing errors introduced by this web author cannot be ruled out; location interpretation from variety of sources, including this website author.
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Images are NOT to be downloaded from this website.
August 2009