USCG Proposes LED Lighthouse Lens Replacements

By Eric Haun
Wednesday, May 28, 2014
Duluth Harbor North Pier Light (U.S. Library of Congress photo)

Coast Guard proposes removal of lenses from two Duluth lighthouses, replacement with more energy efficient LEDs

The U.S. Coast Guard (USCG) announced a proposal to remove the Fresnel Classical Lenses from two lighthouses in Duluth, Minnesota, this fall in partnership with the Minnesota State Historic Preservation Office.

The two lighthouses affected are the Duluth Harbor South Breakwater Outer Light and Duluth Harbor North Pier Light. The Fresnel Classical lenses would be replaced with modern light emitting diode (LED)lanterns which are more dependable and energy efficient.

Replacing the lenses will reduce the range of the lights slightly. The Duluth Harbor South Breakwater Outer Light would be reduced from about 16 nautical miles to 13 nautical miles, and the Duluth Harbor North Pier Light would be reduced from 14 nautical miles to 10.5 nautical miles.

The lenses would be removed in order to preserve them. Due to the harsh environmental conditions, including temperature fluctuations and ultraviolet rays, the lenses slowly deteriorate. Once removed, the lenses would be loaned to a local museum so they can be displayed to the public and maintained in a controlled environment.

The USCG has given the public a 30-day window to submit comments on the Fresnel Classical lens removal to wayne.e.kean@uscg.mil.

uscgnews.com
 

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

Navigation

MN 100: ContainerTug B.V.

The Company: ContainerTug B.V. is a specialized Dutch naval design engineering and construction company with a strong focus on developing workboats and the evaluation

Sunken Towboat Lifted from Neches River

A towboat that sank in Texas' Neches River August 21, and caused a temporary closure of the waterway, was lifted out of the water Wednesday Evening. T&T Marine,

Sailboat Catches Fire off Honolulu

A sailboat with five people aboard caught fire off Honolulu, Thursday, promting responsefrom the U.S. Coast Guard who sent a 45-foot Response Boat-Medium crew from

News

China Passes New Pollution Law, Will Cap Coal Consumption

Legislators have approved amendments to China's 15-year-old air pollution law that grant the state new powers to punish offenders and create a legal framework to cap coal consumption,

Marad Celebrates Deployment of Maritime Fuel Cell Project

The U.S. Department of Transportation’s Maritime Administration (MARAD) today celebrated the launch of field trials for the first prototype hydrogen fuel cell

Gazprom, OMV Meet on Establishing Nord Stream JV

At a Meeting held at the Gazprom headquarters between Alexey Miller, Chairman of the Company's Management Committee and Rainer Seele, Chairman of the Executive Board of OMV,

Coast Guard

Man Earns Jail Time for Hoax Coast Guard Calls

A man found guilty of making numerous hoax calls to the U.K. Coastguard has been jailed for four months, the U.K. Maritime and Coastguard Agency (MCA) reported.

Sunken Towboat Lifted from Neches River

A towboat that sank in Texas' Neches River August 21, and caused a temporary closure of the waterway, was lifted out of the water Wednesday Evening. T&T Marine,

Iranian Ship, Crew Escape Captivity off Somali Coast

An Iranian fishing vessel and its crew have escaped after being held captive for five months by Somali fishermen, maritime piracy experts said on Friday, but it

Maritime Safety

Man Earns Jail Time for Hoax Coast Guard Calls

A man found guilty of making numerous hoax calls to the U.K. Coastguard has been jailed for four months, the U.K. Maritime and Coastguard Agency (MCA) reported.

Tropical Storm Erika Heads for Florida

Tropical Storm Erika lashed Puerto Rico and the Virgin Islands with heavy rain and fierce winds on Friday, moving across the Caribbean and apparently heading for the Dominican Republic,

ClassNK to Issue Guidance on Composite Propellers

Classification society ClassNK announced it will release the world’s first Guidelines on Composite Propellers (Part on Manufacturing/Product Inspection) on August 31.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Offshore Oil Pod Propulsion Salvage 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: 0.5625 sec (2 req/sec)