Images

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.

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 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. 

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.

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

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

Joel Maynard (Virginia Department of Environmental Quality) at 27F 2 Sow 019. Data for this site can be found at USGS Water Data for the Nation.

Joel Maynard (VA DEQ) demonstrates to Nick Gilmore (WVTF) how data is collected from State Observation Well 019 in Christiansburg, Virginia. Data for this site can be found at USGS Water Data for the Nation.

The wellhouse in Christiansburg, Virginia which houses State Observation Well 019. Data for this site can be found at USGS Water Data for the Nation.

A staff gage, used to measure peak streamflow at the hydrologic monitoring station 0204226163 located at the Waterfront Lake Dam in Innesbrook, VA. 

The hydrologic monitoring station 0204226958 located at Echo Lake Park in Glen Allen, VA. 

This monitoring site collects both precipitation and gage height data, which can be viewed at the Water Data for the Nation website.

The hydrologic monitoring station 0204226958 located at Echo Lake Park in Glen Allen, VA. 

This monitoring site collects both precipitation and gage height data, which can be viewed at the Water Data for the Nation website.

The hydrologic monitoring station 0204226163 located at the Waterfront Lake Dam in Innesbrook, VA. 

This monitoring site collects both precipitation and gage height data, which can be viewed at the Water Data for the Nation website.

A staff gage, used to measure peak streamflow at the hydrologic monitoring station 0204226958 located at Echo Lake Park in Glen Allen, VA. 

This monitoring site collects both precipitation and gage height data, which can be viewed at the Water Data for the Nation website.

Accotink Creek is an urban creek and a tributary of Lake Accotink. Accotink Creek suffers from high rates of streambank erosion, which causes the steep, unstable banks seen on the far side of the creek in the above image. 

A geomorphic transect pin shortly after installation on a floodplain.

USGS technician Dan Burns takes measurements along a geomorphic creek transect.

USGS technician Dan Burns takes measurements along a geomorphic creek transect.

USGS technician Dan Burns takes measurements along a geomorphic creek transect.

USGS technician Dan Burns takes measurements along a geomorphic creek transect.

A USGS technician measures a geomorphic transect pin.