Images

Monitoring equipment at Frio River at Concan, Tex.

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A Crest Stage Gage

Here is a low-tech device made of solely of a metal pipe, a wooden pole, and crushed cork that is invaluable to providing a one-time measurement of the maximum height (stage) that a stream hits during a high-water event.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Harvey in Matagorda County, Texas.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 

USGS scientist David Rodriguez records high water marks from storm surge near Corpus Christi, Texas. 

USGS scientist Alec McDonald surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, Texas.

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.

Location 4. Sand dunes along this stretch of coast in Sargent, Texas, were overwashed by large waves during the storm. Sand from the beach and dunes is covering the roadway behind the dunes and which may be impassable. The predicted probability of overwash in this area was 94%.

A USGS field crew takes water-quality samples on Lake Houston following Harvey.

A peek into a USGS planning meeting to coordinate water-quality sampling efforts in response to Harvey. This sampling effort is part of the federal government’s broad efforts to ensure public health and to support the state, tribal, and local response to the storm

USGS scientists Lisa Ashmore and Lee Bodkin collect water-quality samples on Lake Houston in response to the high flow conditions that resulted from Harvey.