Oxnard Harbor District Wins Honor

Monday, October 05, 2009

The American Association of Port Authorities has given an award of excellence to the Port of Hueneme Oxnard Harbor District for its extraordinary cooperative project to clean sediment from the harbor floor. Crafted through a partnership between the Oxnard Harbor District, U.S. Navy and U.S. Army Corps of Engineers, the Port of Hueneme Confined Aquatic Disposal (CAD) Facility project is an example of a harbor-wide contaminated sediment management strategy that provided a complete solution to the needs of all three project proponents.

Located approximately 60 miles northwest of Los Angeles, the Port of Hueneme is the only deep-water port between Los Angeles and the San Francisco Bay area and is the United States Port of Entry for California's central coast region. The port’s harbor consists of berths owned by the Oxnard Harbor District and the Navy, and a federal navigation channel that is maintained by the Corps.  The Harbor District and Navy berths were last dredged more than 10 years ago and had accumulated between one and three meters of contaminated sediment in that time. Several open-water areas within the federal channel also contain contaminated sediments. These sediments came from chemicals on ship bottoms or from run-off in nearby agricultural fields. The sediments were found to be unsuitable for open ocean or beach disposal.

In 2007, the Harbor District, Navy and Corps began a collaborative effort to design and obtain regulatory approval for the construction of a CAD facility as a mechanism for managing the contaminated sediments within Port of Hueneme harbor. The on-site CAD facility is a highly cost-effective solution for all parties involved, as it entailed minimal transportation costs, no tipping fees and no need for sediment rehandling.
 
The dredging consisted of three phases:
1.    Hydraulic excavation of the subsurface CAD cell within the harbor with placement of the excavated clean sand on an adjacent beach that was severely eroded and in need of nourishment;
2.    Mechanical dredging of contaminated sediment from the Harbor District and Navy wharves and Corps open-water areas with barge placement of the sediments into the CAD cell;
3.    Capping and armoring the CAD cell, which consisted of dredging clean operations and maintenance areas from within the federal navigation channel and placing this material in the CAD cell to form a clean cap, a portion of which is covered by a rock armor layer to prevent scour of the cap.
 
The project’s significance to AAPA members is two-fold.  First, it represents the first CAD site to be successfully permitted and constructed in California and is one of only a handful in the U.S., constructed for the sole purpose of harbor-wide sediment management.  Second, it represents the first time a harbor district, the Navy and the Corps have proactively established a partnership to design and build a regional sediment management solution.

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Ports

ISR Holds Crawler Crane Dedication Ceremony

International Ship Repair & Marine Services, Inc. (ISR) was awarded a $980,260 federal grant from the U.S. Department of Transportation Maritime Administration

USCG Leading Marina Pollution Response

U.S. Coast Guard pollution responders are continuing to respond to reports of pollution in Charleston City, Bristol and Ashley River marinas Sunday. Boaters reported pools of thick,

Coast Guard Inspects Cleveland's First Containership

U.S. Coast Guard marine inspectors conducted safety and security examinations on the first-ever containership to arrive in Cleveland Saturday morning. The Fortunagracht,

News

ISR Holds Crawler Crane Dedication Ceremony

International Ship Repair & Marine Services, Inc. (ISR) was awarded a $980,260 federal grant from the U.S. Department of Transportation Maritime Administration

Eastern Awarded NYC Firefighter Plate

Monday, April 7, 2014, at the Sea Air Space Exposition at the Gaylord National Convention Center - National Harbor, MD, Brian D’Isernia, Eastern Shipbuilding Group,

ESAB Releases Updated Columbus III

ESAB Welding & Cutting Products announces the release of Columbus III version 1.2, a powerful CAD/CAM programming and nesting software optimized for plasma, oxy-fuel, laser and waterjet cutting.

 
 
Maritime Contracts Maritime Security Naval Architecture Navigation Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1767 sec (6 req/sec)