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Oceanside harbor dredging begins

Published April 18, 2017
The dredge HR Morris maintains position at the Oceanside Harbor entrance channel as the annual navigation project begins. The dredge pumps sediment from the channel in order to maintain the authorized federal channel depth, with the added benefit of using the material to renourish Oceanside beaches.
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The dredge HR Morris maintains position at the Oceanside Harbor entrance channel as the annual navigation project begins. The dredge pumps sediment from the channel in order to maintain the authorized federal channel depth, with the added benefit of using the material to renourish Oceanside beaches.

This is the initial segment of pipeline that connects the dredge HR Morris to additional lengths along the beach. Dredge operators adjust the intake to create a slurry that is about 15-20 percent material and 85-80 percent water for maximum efficiency.
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This is the initial segment of pipeline that connects the dredge HR Morris to additional lengths along the beach. Dredge operators adjust the intake to create a slurry that is about 15-20 percent material and 85-80 percent water for maximum efficiency.

Manson Construction Company buried the nearly 2,500 feet of the 30-inch diameter discharge pipeline from the entrance channel at the north end of Oceanside's beach to the mouth of the San Luis Rey River. Burying the pipe improves safety for visitors, provides a more natural beach setting and reduces the time and cost to complete the project.
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Manson Construction Company buried the nearly 2,500 feet of the 30-inch diameter discharge pipeline from the entrance channel at the north end of Oceanside's beach to the mouth of the San Luis Rey River. Burying the pipe improves safety for visitors, provides a more natural beach setting and reduces the time and cost to complete the project.

The discharge pipe for the Oceanside Harbor navigation project spans the San Luis Rey River on its way south. A flowing San Luis Rey River is a rare occurrence for the outlet that is generally impounded by sand.
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The discharge pipe for the Oceanside Harbor navigation project spans the San Luis Rey River on its way south. A flowing San Luis Rey River is a rare occurrence for the outlet that is generally impounded by sand.

Manson Construction Company pumps material from the Oceanside Harbor entrance channel onto the beach just south of the San Luis Rey River. As the beach widens and provides the route for additional pumping, construction workers will add more sections to the pipe to eventually reach the Oceanside Pier.
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Manson Construction Company pumps material from the Oceanside Harbor entrance channel onto the beach just south of the San Luis Rey River. As the beach widens and provides the route for additional pumping, construction workers will add more sections to the pipe to eventually reach the Oceanside Pier.

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OCEANSIDE, Calif. – The annual dredging of the entrance channel at Oceanside Harbor began Monday afternoon when the dredge HR Morris began pumping the first of up to 300,000 cubic yards that will maintain safe navigation for vessels and provide much-needed renourishment for the city’s shoreline.

The Corps awarded the contract to Manson Construction Company of Seattle, Washington, on March 13 and issued the notice proceed on March 27. Since that date, Manson transferred the necessary equipment to the site, assembled the pipeline that will transport the slurry from the harbor to the beach and moved Morris into place to begin operations.

Manson Construction has successfully dredged Oceanside Harbor in the past, and Corps and the project’s local sponsor, the City of Oceanside, anticipate no difficulties meeting the Memorial Day completion date.

With the pipeline and heavy construction equipment in operation along the beach, the Corps and the city remind the public to exercise extreme caution when near the dredge, pipeline and other construction equipment. Manson will station safety monitors on the beach when beach equipment is in use.