This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
Robert Holmes, Jr., Ph.D., P.E., F.ASCE, F.EWRI, D.WRE (Former Employee)
Science and Products
Rapid Deployment Gages (RDGs)
Rapid Deployment Gages (RDGs) are fully-functional streamgages designed to be deployed quickly and temporarily to measure and transmit stream stage data in emergency situations.
Surge, Wave, and Tide Hydrodynamics (SWaTH) Network
During large coastal storms, the storm surge and waves are the main cause of destruction and landscape change, transporting saline water, sediment, and debris inland. The USGS, in collaboration with stakeholders, has constructed a national Surge, Wave, and Tide Hydrodynamics (SWaTH) Network for the Atlantic, Eastern Pacific, and Central Pacific. SWaTH monitors and documents the height, extent, and...
USGS Flood Event Viewer: Providing Hurricane and Flood Response Data
During large, short-term floods, the USGS collects additional data to help document these high-water events. This data is uploaded to the USGS Short-Term Network (STN) for long-term archival, and served out to the public through the USGS Flood Event Viewer (FEV) which provides convenient, map-based access to storm-surge and other event-based data.
Historical Flooding
The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about the USGS activities, data, and services provided during regional high-flow events, such as hurricanes or multi-state flooding events. The USGS response to these events is typically managed by the National Flood...
South Carolina Flood Frequency Q&A
In 2015, Dr. Robert Holmes, USGS National Flood Hazard Coordinator, took time to discuss some issues related to the flooding in South Carolina following the Appalachian Floods and Hurricane Joaquin.
June 2014 floods in South Dakota, Minnesota, and Iowa
Learn more about USGS flood activities related to the June 2014 Floods in South Dakota, Minnesota, and Iowa.
Hurricane Sandy: Tracking Water Levels
During and after Hurricane Sandy, the USGS monitored water levels, storm tide, wave height, and high-water marks at over 224 locations. This information helps the USGS and its partners track the storm and respond to the most-impacted areas.
Hurricane Matthew: Flood Resources and Tools
During and after Hurricane Matthew, the USGS made flood-flow measurements, maintained streamgages, deployed over 390 instruments, and developed geospatial products to measure and communicate the extent of coastal and inland flooding.
Floods and Recurrence Intervals
A major storm or hurricane hits your area and on the radio you hear reference to a "100-year flood". But what exactly is a "100-year flood"? The term "100-year flood" is often used to describe a flood of great magnitude, but there is a lot more to it.
Looking North of Grand Forks
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
Looking North of Grand Forks
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
Looking North at Olso, MN
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north at Oslo, MN.
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north at Oslo, MN.
2011 Interstate 29 Flooding in North Dakota
Overland flooding on Interstate 29 in North Dakota caused by the Red River of the North (nearest town Oslo, Minnesota). This photograph was taken by the USGS National Flood Hazard Coordinator in one of the last small vehicles to drive on this stretch of the Interstate. About 15 minutes later, the North Dakota State Highway Patrol closed a stretch of the
Overland flooding on Interstate 29 in North Dakota caused by the Red River of the North (nearest town Oslo, Minnesota). This photograph was taken by the USGS National Flood Hazard Coordinator in one of the last small vehicles to drive on this stretch of the Interstate. About 15 minutes later, the North Dakota State Highway Patrol closed a stretch of the
Looking Southeast from Oslo
This picture was taken from the top of the Oslo, MN exit looking southwest, on April 13, 2011.
This picture was taken from the top of the Oslo, MN exit looking southwest, on April 13, 2011.
Sorlie Bridge Flooded
Looking at the Sorlie Bridge at Grand Forks, ND from downstream.
Looking at the Sorlie Bridge at Grand Forks, ND from downstream.
Science and Products
Rapid Deployment Gages (RDGs)
Rapid Deployment Gages (RDGs) are fully-functional streamgages designed to be deployed quickly and temporarily to measure and transmit stream stage data in emergency situations.
Surge, Wave, and Tide Hydrodynamics (SWaTH) Network
During large coastal storms, the storm surge and waves are the main cause of destruction and landscape change, transporting saline water, sediment, and debris inland. The USGS, in collaboration with stakeholders, has constructed a national Surge, Wave, and Tide Hydrodynamics (SWaTH) Network for the Atlantic, Eastern Pacific, and Central Pacific. SWaTH monitors and documents the height, extent, and...
USGS Flood Event Viewer: Providing Hurricane and Flood Response Data
During large, short-term floods, the USGS collects additional data to help document these high-water events. This data is uploaded to the USGS Short-Term Network (STN) for long-term archival, and served out to the public through the USGS Flood Event Viewer (FEV) which provides convenient, map-based access to storm-surge and other event-based data.
Historical Flooding
The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about the USGS activities, data, and services provided during regional high-flow events, such as hurricanes or multi-state flooding events. The USGS response to these events is typically managed by the National Flood...
South Carolina Flood Frequency Q&A
In 2015, Dr. Robert Holmes, USGS National Flood Hazard Coordinator, took time to discuss some issues related to the flooding in South Carolina following the Appalachian Floods and Hurricane Joaquin.
June 2014 floods in South Dakota, Minnesota, and Iowa
Learn more about USGS flood activities related to the June 2014 Floods in South Dakota, Minnesota, and Iowa.
Hurricane Sandy: Tracking Water Levels
During and after Hurricane Sandy, the USGS monitored water levels, storm tide, wave height, and high-water marks at over 224 locations. This information helps the USGS and its partners track the storm and respond to the most-impacted areas.
Hurricane Matthew: Flood Resources and Tools
During and after Hurricane Matthew, the USGS made flood-flow measurements, maintained streamgages, deployed over 390 instruments, and developed geospatial products to measure and communicate the extent of coastal and inland flooding.
Floods and Recurrence Intervals
A major storm or hurricane hits your area and on the radio you hear reference to a "100-year flood". But what exactly is a "100-year flood"? The term "100-year flood" is often used to describe a flood of great magnitude, but there is a lot more to it.
Looking North of Grand Forks
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
Looking North of Grand Forks
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north from Grand Forks, ND. You can see flooded I-29 and the isolated town of Oslo, MN.
Looking North at Olso, MN
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north at Oslo, MN.
This picture was taken from a airplane flying out of Grand Forks on April 14, 2011. Looking north at Oslo, MN.
2011 Interstate 29 Flooding in North Dakota
Overland flooding on Interstate 29 in North Dakota caused by the Red River of the North (nearest town Oslo, Minnesota). This photograph was taken by the USGS National Flood Hazard Coordinator in one of the last small vehicles to drive on this stretch of the Interstate. About 15 minutes later, the North Dakota State Highway Patrol closed a stretch of the
Overland flooding on Interstate 29 in North Dakota caused by the Red River of the North (nearest town Oslo, Minnesota). This photograph was taken by the USGS National Flood Hazard Coordinator in one of the last small vehicles to drive on this stretch of the Interstate. About 15 minutes later, the North Dakota State Highway Patrol closed a stretch of the
Looking Southeast from Oslo
This picture was taken from the top of the Oslo, MN exit looking southwest, on April 13, 2011.
This picture was taken from the top of the Oslo, MN exit looking southwest, on April 13, 2011.
Sorlie Bridge Flooded
Looking at the Sorlie Bridge at Grand Forks, ND from downstream.
Looking at the Sorlie Bridge at Grand Forks, ND from downstream.