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Corps stresses safety around Oregon jetties
Thursday, August 28, 2008 | No comments posted.
The U.S. Army Corps of Engineers reminds visitors to the coast that jetties were not built for recreation. People shouldn’t fish, walk, drive or climb on jetties because of the hazards involved, the Corps said in a press release.
The Corps manages more than 30 jetties and breakwaters along the Oregon coast, from Astoria south to Brookings.
Construction of the jetties began more than 100 years ago to help mariners navigate between the Pacific Ocean and coastal ports. Additional work has been performed to lengthen and strengthen the jetties.
Despite these moves to prolong their life and usefulness, the structures are not immune to the effects of nature. Waves can remove even the largest boulders from jetties. Underwater currents penetrate the structures, removing smaller rocks and sand from inside.
Visible and hidden dangers include:
* Crevasses between boulders.
* Sinkholes, caused by eroding sand, which can give way unexpectedly.
* Caverns caused by erosion and hidden below a thin surface.
* Slippery rock surfaces.
* Sudden larger waves that can knock a person off balance or into the water, even during calm weather.
If a person falls into the water, waves and strong currents can prevent rescue, the Corps said. So the Corps recommends admiring the jetties from a distance.
The Corps manages more than 30 jetties and breakwaters along the Oregon coast, from Astoria south to Brookings.
Construction of the jetties began more than 100 years ago to help mariners navigate between the Pacific Ocean and coastal ports. Additional work has been performed to lengthen and strengthen the jetties.
Despite these moves to prolong their life and usefulness, the structures are not immune to the effects of nature. Waves can remove even the largest boulders from jetties. Underwater currents penetrate the structures, removing smaller rocks and sand from inside.
Visible and hidden dangers include:
* Crevasses between boulders.
* Sinkholes, caused by eroding sand, which can give way unexpectedly.
* Caverns caused by erosion and hidden below a thin surface.
* Slippery rock surfaces.
* Sudden larger waves that can knock a person off balance or into the water, even during calm weather.
If a person falls into the water, waves and strong currents can prevent rescue, the Corps said. So the Corps recommends admiring the jetties from a distance.
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