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Multimedia

Our multimedia gallery presents a collection of images, videos, posters, and audio associated with our projects. All items in this gallery are considered public domain unless otherwise noted.

Images

Completed extensometer borehole. Multiple nested pipes protrude from the surface and the drill rig is still in place above.
James River Deep Extensometer After Completion of Drilling
James River Deep Extensometer After Completion of Drilling
James River Deep Extensometer After Completion of Drilling

The completed Jame River extensometer borehole. The nested 24-inch diameter conductor casing, 16-inch diameter surface casing, 7-inch diameter steel casing, and the 2-inch diameter extensometer rod are all visible protruding upwards from the ground. 

The completed Jame River extensometer borehole. The nested 24-inch diameter conductor casing, 16-inch diameter surface casing, 7-inch diameter steel casing, and the 2-inch diameter extensometer rod are all visible protruding upwards from the ground. 

Drill rig lowering extensometer pipe into a borehole.
James River Extensometer Installation
James River Extensometer Installation
James River Extensometer Installation

Drillers from the USGS Research Drilling Program using a drill rig to install a 42 foot length of schedule 80 extensometer pipe at the James River extensometer site.

Drillers from the USGS Research Drilling Program using a drill rig to install a 42 foot length of schedule 80 extensometer pipe at the James River extensometer site.

A metal endcap with a flat base which serves at the foot of an extensometer. It is about half the size of a nearby hardhat.
Extensometer Foot
Extensometer Foot
Extensometer Foot

The foot of the James River Extensometer shortly before installation, with a nearby hardhat for scale. The extensometer foot is installed at the very base of the extensometer hole, at a depth of 1280 feet in the case of the James River Extensometer. All 1280 feet of extensometer pipe gently rests on the extensometer foot.

The foot of the James River Extensometer shortly before installation, with a nearby hardhat for scale. The extensometer foot is installed at the very base of the extensometer hole, at a depth of 1280 feet in the case of the James River Extensometer. All 1280 feet of extensometer pipe gently rests on the extensometer foot.

A drilling rig at the site of the James River Extensometer. Several individuals in hardhats and safety vests tour the rig.
Drilling the James River Extensometer
Drilling the James River Extensometer
Drilling the James River Extensometer

A USGS Research Drilling Program rig at the site of the James River Extensometer.

A USGS scientists leads a tour of a drilling site. He indicates where drilled sediments are deposited out of the shaker.
Tour of the James River Extensometer drill site
Tour of the James River Extensometer drill site
Tour of the James River Extensometer drill site

Greg Connock, a USGS geologist, leads a tour of the James River Extensometer drill site. He indicates where drilled sediments are deposited out of the shaker.

Greg Connock, a USGS geologist, leads a tour of the James River Extensometer drill site. He indicates where drilled sediments are deposited out of the shaker.

A USGS geologist gives a tour of a drilling site
Geologist Greg Connock giving a tour of a USGS drill rig
Geologist Greg Connock giving a tour of a USGS drill rig
Geologist Greg Connock giving a tour of a USGS drill rig

USGS Geologist Greg Connock gives a tour of a drill rig at the James River Extensometer drill site during a community outreach event.

Videos

Fairfax County Lake Accotink Sedimentation Study Video Thumbnail Fairfax County Lake Accotink Sedimentation Study Video Thumbnail
Fairfax County Lake Accotink Sedimentation Study
Fairfax County Lake Accotink Sedimentation Study

The USGS is monitoring Lake Accotink, Accotink Creek, and Long Branch to better understand sediment flow into and out of the lake.

Everglades Restoration Goals

This video covers the history of the South Florida ecosystem, from the early drainage projects in the 1880s up through current restoration projects designed to reverse the major unintended impacts to this unique ecosystem. All major restoration projects and proposed future projects are covered.

This video covers the history of the South Florida ecosystem, from the early drainage projects in the 1880s up through current restoration projects designed to reverse the major unintended impacts to this unique ecosystem. All major restoration projects and proposed future projects are covered.

Chesapeake Bay Status and Trends (AD)

The Chesapeake Bay is one of the Nation's largest ecosystem restoration efforts, so monitoring to assess changes in condition is crucial. The USGS is monitoring the status and trends of key indicators for the health of streams and rivers in the Chesapeake Bay watershed.

The Chesapeake Bay is one of the Nation's largest ecosystem restoration efforts, so monitoring to assess changes in condition is crucial. The USGS is monitoring the status and trends of key indicators for the health of streams and rivers in the Chesapeake Bay watershed.

Chesapeake Bay Status and Trends

The Chesapeake Bay is one of the Nation's largest ecosystem restoration efforts, so monitoring to assess changes in condition is crucial. The USGS is monitoring the status and trends of key indicators for the health of streams and rivers in the Chesapeake Bay watershed.

The Chesapeake Bay is one of the Nation's largest ecosystem restoration efforts, so monitoring to assess changes in condition is crucial. The USGS is monitoring the status and trends of key indicators for the health of streams and rivers in the Chesapeake Bay watershed.

USGS Extensometer Drilling in Virginia
USGS Extensometer Drilling in Virginia
USGS Extensometer Drilling in Virginia

Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years.

Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years.

Webcams

Most recent imagery of the Difficult Run stream in Fairfax, Virginia
Difficult Run Above Fox Lake Near Fairfax, Virginia
Difficult Run Above Fox Lake Near Fairfax, Virginia
Difficult Run Above Fox Lake Near Fairfax, Virginia

Most recent imagery of the Difficult Run stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

This webcam is a part of the Fairfax County Water Resources Monitoring Network.

Most recent imagery of the Flatlick Branch stream in Fairfax VA.
Flatlick Branch Above Frog Branch at Chantilly, Virginia
Flatlick Branch Above Frog Branch at Chantilly, Virginia
Flatlick Branch Above Frog Branch at Chantilly, Virginia

Most recent imagery of the Flatlick Branch stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

Most recent imagery of the Dead Run stream in Fairfax VA
Dead Run at Whann Avenue Near Mclean, Virginia
Dead Run at Whann Avenue Near Mclean, Virginia
Dead Run at Whann Avenue Near Mclean, Virginia

Most recent imagery of the Dead Run stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

This webcam is a part of the Fairfax County Water Resources Monitoring Network.

Most recent imagery of the Dead Run stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

This webcam is a part of the Fairfax County Water Resources Monitoring Network.

Latest imagery from the S F Little Difficult Run webcam
South Fork Little Difficult Run Above Mouth Near Vienna
South Fork Little Difficult Run Above Mouth Near Vienna
South Fork Little Difficult Run Above Mouth Near Vienna

Most recent imagery of the South Fork of Little Difficult Run stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

Most recent imagery of the South Fork of Little Difficult Run stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

Most recent imagery from the conveyance canal at Ramsgate.
Conveyance Chain at Ramsgate Lane, Hampton Roads
Conveyance Chain at Ramsgate Lane, Hampton Roads
Conveyance Chain at Ramsgate Lane, Hampton Roads

Most recent imagery from USGS site 0204309906, the conveyance chain at Ramsgate Lane in Hampton Roads, Virginia. Visit the webcam site for previous images, timelapse video, and measured parameters.

Most recent imagery from USGS site 0204309906, the conveyance chain at Ramsgate Lane in Hampton Roads, Virginia. Visit the webcam site for previous images, timelapse video, and measured parameters.

Latest imagery of the Long Branch Creek at Olley Lane
Long Branch at Olley Lane
Long Branch at Olley Lane
Long Branch at Olley Lane

Most recent imagery of the Long Branch stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

This webcam is a part of the Fairfax County Water Resources Monitoring Network.

Most recent imagery of the Long Branch stream in Fairfax VA. Visit the webcam site for previous images, timelapse video, and measured parameters.

This webcam is a part of the Fairfax County Water Resources Monitoring Network.

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