18 Nov 2020

High water levels and wave events increase safety hazards

The U.S. Army Corps of Engineers urges caution around Great Lake piers, breakwaters and jetties, particularly during times of high wind and wave events. Many accidents and incidents near harbor structures occur during the turbulent weather season late in the year and higher than normal water levels pose an added threat. The lakeshore attracts local residents and visitors alike and some may not be aware of the powerful impacts that strong winds, storms and high water levels can bring. Dangers of High Water Levels, Waves. The Great Lakes are experiencing higher than normal water levels, which bring safety hazards such as submerged breakwaters, dangerous rip currents and electric shock risks.

5 Oct 2020

20-053 Anglers and recreationalists beware of fluctuating water levels on the Clearwater and the North Fork of the Clearwater

Ahsahka, Idaho. – Dworshak Dam powerhouse will conduct testing on one of their hydropower units on October 13 and 14, from 8 a.m. until 5 p.m. The test will increase the flow from the powerhouse, resulting in fluctuations of water depth and flow on both the Clearwater and the North Fork of the Clearwater rivers.

11 Sep 2020

Corps of Engineers report Great Lakes water levels remain high as fall storms approach

U.S. Army Corps of Engineers officials report despite seasonal declines, Great Lakes water levels remain high as fall storms approach. “The Corps of Engineers urges anyone impacted by high water levels last fall to prepare for similar or worse impacts in the coming months,” Detroit District Great Lakes Hydraulics and Hydrology Office Chief, John Allis said. The Corps’ Detroit District is responsible for monitoring, forecasting, collecting and disseminating Great Lakes water level information. For the most up-to-date Great Lakes water level information visit the district’s website at www.lre.usace.army.mil/Missions/Great-Lakes-Information.

30 Jul 2020

PUBLICATION NOTICE: Investigation of Shoaling in the Federal Navigation Channel, Waukegan Harbor, Illinois

Abstract: Persistent and excessive shoaling occurs in the Outer Harbor and Approach Channel of the Waukegan Harbor, Illinois. This report describes a numerical modeling study performed for the US Army Corps of Engineers, Chicago District, to evaluate the existing harbor and 11 structural alternatives for three crest elevations. This report provides details of numerical modeling study, analysis of field data, and estimates of shoaling. The focus of the study is the investigation of a variety of structural solutions intercepting and/or diverting sediments to reduce shoaling in the navigation channel. These include breakwaters, groins, spurs, and structural extensions with varying length and crest elevation connecting to the north beach and existing north breakwater. Estimates of both shoaling volume and height are developed with and without project using an integrated wave-flow-sediment transport numerical modeling approach. Quantitative reduction estimates are provided for each structural alternative investigated.

12 Jun 2020

Great Lakes water levels still setting records

The U.S. Army Corps of Engineers, Detroit District, announces that Lakes Michigan, Huron, St. Clair and Erie set new monthly mean water level records for May 2020. These water level records were previously set in 1986 on Lakes Michigan and Huron and just last year in 2019 on Lakes St. Clair and Erie. As we enter the summer months, all of the lakes are either in their period of seasonal rise or are reaching their peak, except Lake Ontario, which will likely begin its seasonal decline this month. Although most of the month was dry, the middle of May brought heavy rainfall to some areas of the basin, resulting in a wetter than average month for the Michigan-Huron and Erie basins. In the coming months, water levels are projected to continue to be near or above record high water levels on all of the lakes, except Lake Ontario. Significant erosion and flooding continues in many locations as water levels remain extremely high. “The water level of Lakes Michigan and Huron has now risen above the peak level that was reached last year,” said John Allis, chief of the Great Lakes Hydraulics and Hydrology Office, Detroit District.

6 Feb 2020

Record high water levels to continue in 2020

DETROIT- The U.S. Army Corps of Engineers, Detroit District, announces that January 2020 water levels were higher on all lakes than they were in January 2019, and are expected to continue that trend into the spring and summer. According to Corps records, lakes Michigan and Huron both set new record high January levels, previously set in 1987. Lake Superior set new record high January levels previously set in 1986. Lake St. Clair tied its record high level set in January 1986. “It is likely that water levels on lakes Michigan and Huron will set new monthly mean record high levels over the next six months,” said John Allis, chief of the Great Lakes Hydraulics and Hydrology Office, Detroit District. “This sets the stage for coastal impacts and damages in 2020 similar to, or worse than, what was experienced last year.”