20170720 - Flooding Alg (hrb) - nwherald
Hnews_Fri721_flooding_alg4

Hnews_Fri721_flooding_alg4

Kayla Wolf - for Shaw Media
USGS Hyrdologic Technician Lisa Matson records data on the flow of water in the Fox River on Thursday, July 20, 2017 in Algonquin. USGS monitors various waterways throughout Illinois and typically records measurements every six to eight weeks, but when there is flooding or other severe weather they measure more frequently.