Police and Dive Teams Rely on Underwater Search Equipment

MarineLink.com
Thursday, August 29, 2013
Fairhaven's harbormaster and shellfish warden with ROV, Inset - Downe Twp with side scan sonar

Many government agencies and public safety dive teams are adding underwater search equipment to help make their operations easier, safer, and faster. Maricopa Sheriffs Department in Arizona, Downe Township Fire Rescue in New Jersey, the Fairhaven Massachusetts Harbor Master and the South Carolina Law Enforcement Division are a few of the diverse group of agencies using metal detectors, video cameras and sonars in their underwater search operations.

Deputy Jeff Hanson, leader of the Maricopa County Sheriffs Department dive team, reported his group had been searching for almost a month, without success, for a small plane that went down in a local lake. The team then borrowed a JW Fishers TOV-1 towed video system from a neighboring department. The TOV-1 has a torpedo shaped housing with a camera mounted behind a dome port. Towing the system is similar to towing a diver, except the TOV-1 can be towed up to 500 feet deep and stay submerged indefinitely. It eliminates the normal concerns of diving such as running out air, decompression sickness, fatigue and cold. Using the TOV-1 Hanson’s team located the lost plane in less than two days. The team has since acquired their own Fisher underwater video system.

Downe Township is located in Cumberland County New Jersey which borders Delaware Bay. Although the town has less than 2,000 residents, Downe Township Fire / Rescue has a dozen highly trained divers and the team is well equipped. All have knowledge in swift water and cold water rescue. To assist in locating drowning victims, sunken vessels, and submerged vehicles the team bought a JW Fishers SSS-600K side scan sonar. This high frequency sonar is capable of scanning 200 feet of bottom on each side of the towfish and produces detailed images of any object lying on the lake, river, or ocean floor. Scanning 400 feet of bottom with each pass of the vessel allows large areas to be searched quickly, saving days of dive time and increasing safety for team members.

The New England towns of Fairhaven and New Bedford share a common harbor. New Bedford is a fishing port that also has a vibrant shipping industry. Fairhaven is smaller, but its waterfront is a safe haven for many recreational boaters. Located on Buzzards Bay, Fairhaven’s land juts into the bay forming Sconticut Neck and West Island, along with several smaller islands which are good breeding areas for quahogs and soft shelled clams. The two towns share responsibility for the harbor’s safety and security. When New Bedford received a grant from the federal government for port security, it used the funds to acquire JW Fishers SeaLion-2 ROV. This highly maneuverable remote controlled underwater vehicle is equipped with cameras front and rear and can serve a number of functions around the port including checking the hulls of vessels for smuggled contraband, inspecting structures for potential terrorist threats like explosive devices, locating pollutants dumped in the harbor, and finding sunken vessels. Easily deployed by one person, the light weight vehicle is equipped with scanning sonar which allows the operator to view a 200 foot area around the ROV even in zero visibility conditions. The Fairhaven Harbormaster has been charged with the responsibly of operating the ROV and assists the town’s law enforcement agencies as needed. As a secondary use, the ROV helps monitor the area’s shellfish populations.

South Carolina’s State Law Enforcement Division (SLED) provides manpower and technical assistance to law enforcement agencies across the state, as well as conducts investigations when directed to do so by the governor or attorney general. To assist in their operations SLED has acquired several of JW Fishers hand-held underwater metal detectors. An essential tool for locating evidence disposed of in a waterway, these metal detectors routinely assist police divers in finding weapons, shell casings, stolen objects, and explosive devices.

A few of the many other agencies using JW Fishers search equipment are Suffolk County Sheriffs Marine Unit in N.Y., Royal Canadian Mounted Police Underwater Recovery Team, Sturgeon Bay Police in Wis., Policia de Puerto Rico, the U.S. Navy’s Explosive Ordinance Division, Sanilac County Sheriffs Office in Mich., Dekalb County Police in Ga., Henderson County Emergency Management Agency in Tenn., and Boston Police Special Operations Unit.

jwfishers.com
 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

INTERSCHALT VDR Earns CCS Certification

INTERSCHALT maritime systems AG, the provider of maritime software, services and systems for navigation and communications systems (NavCom) and manufacturer of Voyage Data Recorder (VDR) systems,

Nautilus Awards Contract for Dewatering Plant Design

Nautilus Minerals Inc. has awarded a contract for the design of the Solwara 1 dewatering plant to be used on the company’s production support vessel to the Brisbane

McMurdo Introduces Real-time Fleet Management

McMurdo  has announced PRISMA Connect, a web-based integrated fleet management system that connects ship to shore in real-time for improved communication and operational efficiencies,

News

Two New Hybrid RTGs for Port of Shanghai

Corvus Energy informs it will provide the battery systems for an additional two hybrid solutions for new rubber-tired gantry cranes (RTGs) that will be produced

USCG Investigates Oil Slick off California Coast

The U.S. Coast Guard was investigating a large oil sheen off the California coast west of Santa Barbara on Wednesday, a spokeswoman for the agency said.   The slick,

Puget Sound Reports Container Volume Growth

Less congestion and efficient cargo movement helped international container volumes through the Puget Sound gateway improve 14 percent in June compared to June 2014, the port reported.

Underwater Engineering

Nautilus Awards Contract for Dewatering Plant Design

Nautilus Minerals Inc. has awarded a contract for the design of the Solwara 1 dewatering plant to be used on the company’s production support vessel to the Brisbane

New Load Measurement Solution for Port of Dampier

Strainstall designs and delivers a load measurement solution for the world’s largest floating wharf at Port of Dampier.   Strainstall, part of James Fisher and Sons plc,

IMCA Appoints Faure as President

Bruno Faure, Group Senior Vice President Subsea Projects and Operations at Technip  has taken over the role of President of the International Marine Contractors Association (IMCA),

Subsea Salvage

Wrecked 'Russian Submarine' Found in Swedish Waters

A wrecked mini-submarine was found last week in waters off of Sweden’s eastern coast.   Authorities believe it is a Russian model, primarily because of Cyrillic letters on the hull.

 
 
Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
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: 0.4117 sec (2 req/sec)