21 Oct 2020

Winter changes to Lower Columbia River recreational lock schedule

Recreational boaters who need to move through the three lower Columbia River dams’ locks must do so during daylight hours, on request. This change began September 30 and will continue until May 15, 2021 at Bonneville, The Dalles and John Day. This is an annual and a regularly scheduled part of operations during the winter season.

13 Oct 2020

U.S. Army Corps of Engineers releases draft programmatic agreement for its operations, navigation and shore protection programs in Florida

JACKSONVILLE, Fla. - The U.S. Army Corps of Engineers, Jacksonville District is accepting public comments on its Draft Programmatic Agreement for the Corps’ operations, navigation and shore protection programs in Florida.

5 Oct 2020

Below average runoff continues in the upper Missouri River basin

September precipitation was well-below normal in the Missouri River Basin.  As a result, September runoff in the upper Missouri River Basin above Sioux City, Iowa was 69% of average.  Since January 1, precipitation in the upper Basin is well-below normal.  The National Weather Service’s Climate Prediction Center (CPC) is forecasting that below-normal precipitation will continue in October.  The 2020 calendar year runoff forecast for the upper Basin, updated on October 1, is 30.2 million acre-feet (MAF), 117% of average. Average annual runoff for the upper Basin is 25.8 MAF.

5 Oct 2020

Indiana Harbor dredging begins

Dredging began at Indiana Harbor yesterday and will continue through the fall of 2020, a continuation of the dredging that stopped in 2019 for the winter season. The contractors, a joint venture with Kokosing Construction Company, Ohio, and O'Brien and Gere, Illinois, will dredge approximately 150,000 to 200,000 cubic yards in 2020. The navigation project consists of a harbor channel ranging in depth from 27 to 29 feet low water datum, and two canals with depths of 22 feet. The project includes the operation and maintenance of the East Chicago, Indiana, confined disposal facility.

30 Sep 2020

USACE Buffalo District awards contract for Great Sodus Bay seawall repair

The U.S. Army Corps of Engineers Buffalo District awarded a $3.86 million contract to Michigan-based Great Lakes Dock & Materials, L.L.C, on August 21 for repairs to the east breakwater in the Great Sodus Harbor, located in Sodus Bay, Village of Sodus Point, Wayne County, NY.

24 Sep 2020

Corps proposes Kennebunk River jetties and wing walls repair and maintenance project

 The U.S. Army Corps of Engineers, New England District is proposing to repair the east and west

22 Sep 2020

Progress continues on damaged Lower Missouri River Navigation Channel

The Kansas City District is currently performing multiple tasks to address priority areas of concern and the damages to river structures that have accumulated during the nearly three years of high water. The district is using all available resources to include a combination of contractors, including one for emergency dredging, and our in-house floating plant to repair flood damaged structures and improve channel conditions.

8 Sep 2020

USACE- Buffalo District completes Buffalo S. breakwater repairs

The U.S. Army Corps of Engineers, Buffalo District completed the Buffalo South breakwater construction on August 12, 2020 to repair 625 feet out of the 1,000 foot degraded section. 

3 Sep 2020

August inflows much below average in northern Missouri River Basin

August precipitation was well-below normal in the Missouri River Basin, particularly in the western and far northern portions, which received less than 25% of normal precipitation. The lack of precipitation and dry soil conditions resulted in 74% of average August runoff in the Missouri River Basin above Sioux City, Iowa (upper Basin). The 2020 calendar year forecast for the upper Basin, updated on September 1, is 30.6 million acre-feet (MAF), 119% of average. Average annual runoff for the upper Basin is 25.8 MAF. Runoff in the upper Basin during the remainder of 2020 is forecast to be below average.

20 Aug 2020

PUBLICATION NOTICE: Shallow Water Seakeeping Tests with Columbia Class Submarine for Integration into the Environmental Monitoring and Operator Guidance System

Abstract: The Environmental Monitoring and Operation Guidance System (EMOGS) tool was developed in 1989 to provide a real-time risk analysis for underkeel clearance for the Ohio class submarine while in transit to the Naval Submarine Base at Kings Bay, Georgia. The program computes expected submarine response for input water level, depth, speed, wave, and other input conditions using shallow-water motion transfer functions generated by the strip theory tool, Large Amplitude Motion Program (LAMP). The integration of the new Columbia class submarine into EMOGS required that new transfer functions be developed using LAMP. The LAMP results are to be validated using measured motions from physical model laboratory testing. This report summarizes a laboratory study of the Columbia class submarine response in shallow-water waves. The study was conducted at the US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, and was done in direct support of the Naval Surface Warfare Center, Carderock Division. These seakeeping tests were performed in a shallow basin with a multi-directional wave generator, with measured still water vessel motions and measured vessel motion in regular and irregular waves of varying height, period, and direction.