Near Catonsville in Baltimore County, Maryland — The American Northeast (Mid-Atlantic)
The Destructive Power of the Patapsco
Washed here by Tropical Storm Agnes in 1972, these truck tanker remains are a testament to the Patapsco River's flooding power. That spring, the water rose 30 ft., scattering trees and cars, gutting houses and buildings and leaving the floodplains mostly barren.
Small seasonal floods are part of the river's natural cycle. Larger floods, such as in 1972, occur less often, about once every 100 years. A floodplain constantly undergoes disturbance and regrowth. A succession of plants, shrubs and trees revegetat the landscape. Notice how trees near the river are younger and some bend downstream.
While flooding is part of the river's ecology, humans have accelerated the natural process by clearing trees and paving watershed land. Forest cover soaks up rainwater and releases it into streams slowly. Impervious surfaces such as asphalt increase rainwater runoff, which leads to more erosion.
People have learned to place houses and businesses on higher ground. In the 1800s, the Patapsco Valley was strewn with industries
Text with main photo: The river valley after the flood in 1868.
Text with middle four photos: Four photos of the damage in 1972.
Text with middle left photo: Ellicott Mills in 1868.
Text with lower left photo: Two photos of Avalon Dam in 1972.
Text with lower middle-left photo: Damage to Ilchester area in 1868.
Text with lower middle-right photo: Photo taken of forested river valley in 1972.
Erected by Maryland Department of Natural Resources, Chesapeake Bay Gateways Network.
Location. 39° 14.113′ N, 76° 44.523′ W. Marker is near Catonsville, Maryland, in Baltimore County. Marker can be reached from the intersection of Washington Boulevard (U.S. 1) and South Street. Touch for map. Marker is within the Patapsco Valley State Park - Glen Artney area, on the northern side of the Patapsco
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Patapsco Superlative: (approx. 0.6 miles away); Orange Grove: A Small Neighborly Community (approx. 0.6 miles away); Back to Nature in the Patapsco Valley (approx. 0.6 miles away); Besley Demonstration Campsite (approx. 0.6 miles away); Building America's First Railroad (approx. 0.8 miles away); The C.C.C. Builds Our Park (approx. 1.1 miles away); Elkridge Landing (approx. 1.2 miles away); A Place For Progress (approx. 1.2 miles away). Touch for a list and map of all markers in Catonsville.
Categories. • 20th Century • Agriculture • Disasters • Environment • Horticulture & Forestry • Industry & Commerce •
Credits. This page was last revised on June 16, 2016. This page originally submitted on July 6, 2008, by F. Robby of Baltimore, Maryland. This page has been viewed 1,499 times since then and 14 times this year. Photos: 1, 2, 3. submitted on July 6, 2008, by F. Robby of Baltimore, Maryland.