During the last deglaciation of North America, huge proglacial lakes formed along the southern margin of the Laurentide Ice Sheet. The largest of these was glacial Lake Agassiz, which formed about 11:7 C kyr and drained into Hudson Bay about 7:7 C kyr ð8:45 cal kyrÞ: Overflow from these lakes was variably directed to the Mississippi, St. Lawrence and Mackenzie drainage systems and it is thought...

Background: Strong earthquakes are among the prime triggering factors of landslides, which may block rivers, forming landslide dams. Some of these dams may pose serious threats to people and property due to upstream inundation and downstream dam-breach flooding. Evaluating the stability and potential hazard of landslide dams is significant for the mitigation measures, but remains challenging. T...

First posted September 20, 2022 For additional information, contact: Director, Columbia Environmental Research CenterU.S. Geological Survey4200 New Haven RoadColumbia, MO 65201Contact Pubs Warehouse The Missouri National Recreational River (MNRR) consists of two segments managed by the Park Service on border South Dakota and Nebraska. Both river are unchannelized maintain much their pre-dam cha...

A long-term (1933–2022) record of water level (WL) fluctuations in Lake Kinneret was reviewed. The dependence the WL management on climate change (flood–dryness alternate), dam and National Water Carrier (NWC) constructions constrained by availability domestic supply demands were indicated. short-term range maximal decline 4–6 m 4.6–6.5% total surface area lake shrinkage documented. Nevertheles...

The Jackson Lake Dam was constructed in 1917 in the Grand Teton National Park near Jackson, Wyoming. The dam was a hydraulic fill placed on a natural alluvium and outwash foundation. The Bureau of Reclamation (Burec) determined that the dam and its foundation would be susceptible to liquefaction and failure during a potential earthquake; a series of contracts was let to remove and replace the d...