An analysis of tidal levels and flood data by the news organization Reuters concludes that flooding has increased along the Eastern Seaboard over the past four decades.
During that period, the number of days a year that tidal waters reached or exceeded National Oceanic and Atmospheric Administration flood thresholds more than tripled in many places. The trend roughly tracks a global rise in sea levels, with an average rise of 8 inches in the past century, according to the 2014 National Climate Assessment.
At flood threshold, water begins pool on streets. If it rises beyond that point, it can close roads, damage property, and overwhelm drainage systems. Since 2001, water has reached flood levels an average of 20 days or more a year in Annapolis, Maryland; Wilmington, North Carolina; Washington, D.C.; Atlantic City, New Jersey; Sandy Hook, New Jersey; and Charleston, South Carolina. Before 1971, none of those locations averaged more than five days a year of flooding.
Reuters’s analysis was based on more than 25 million hourly tide-gauge readings from nearly 70 sites on the Atlantic, Gulf, and Pacific coasts and a comparison of that data to NOAA flood thresholds. Reuters then narrowed the analysis to 25 gauges with data spanning at least 50 years. The organization plans to publish a more in-depth examination of rising sea levels later this year.
(http://www.reuters.com/article/2014/07/10/us-usa-sealevel-flood-idUSKBN0FF20220140710)
Related Stories
| Oct 25, 2012
Philadelphia councilmen move to crack down on contractors working without licenses, permits
Two Philadelphia city councilmen are trying to crack down on the "underground economy" of developers and contractors who work without licenses and permits, pay cash under the table, and operate unsafe job sites.
| Oct 25, 2012
OSHA and NIOSH offer Spanish version of nail gun safety document
The Occupational Safety and Health Administration and the National Institute for Occupational Safety and Health have made available a Spanish version of “Nail Gun Safety - A Guide for Construction Contractors.”
| Oct 25, 2012
AGC holding webinar on sequestration’s potential impacts on the construction industry
AGC will hold a free webinar on sequestration and its potential impact on federal construction contractors on Nov. 7.
| Oct 25, 2012
Nashville providing incentives for green roofs
The city of Nashville, Tenn., is promoting the installation of green roofs through a measure providing a $10 reduction in a property's sewer fees for every square foot of vegetative roof.
| Oct 25, 2012
Net Zero buildings will use operating systems like computers to save energy
As buildings become more efficient and begin to use distributed electricity generation, they will need to become “smarter,” using operating systems much as a computer does.
| Oct 18, 2012
Princeton, N.J. residents upset over proposal to exempt colleges from land use laws
Princeton, N.J. residents criticized proposed legislation that would exempt private colleges and universities from following local land use laws for construction projects.
| Oct 18, 2012
Utah contracting firm challenges state immigration law
Universal Contracting LLC of American Fork, Utah, has filed suit challenging the constitutionality of Utah’s 2011 immigration law.
| Oct 18, 2012
More than 65,000 construction, design jobs may be cut if sequestration takes place
About $2 billion worth of construction and design projects would be eliminated if scheduled federal budget cuts, referred to as sequestration, take effect on Jan. 2, 2013.
| Oct 18, 2012
OSHA investigating parking garage collapse that kills four at Doral, Fla. college
OSHA is investigating the collapse of a five-story concrete parking garage under construction at Miami Dade College West Campus in Doral, Fla. that killed four workers and injured several others.