Algae Problems on the Shenandoah River’s North Fork

Every summer, excessive algae growth, fueled by nutrient pollution and warm temperatures, causes problems for people who spend time on the North Fork of the Shenandoah River. Large mats of filamentous algae become a major nuisance for anglers, paddlers, and people who wade and swim in the river. There are also harmful algal blooms that can produce toxins dangerous to people and pets. Some summers, the Virgina Department of Health has issued advisories warning people to avoid certain stretches of the river. Reducing nutrient pollution is key to addressing the algae problem in the Shenandoah River—and saving the Bay downstream!

The importance of improving water quality in headwater streams and rivers is one of many key points in the recent Comprehensive Evaluation of System Response (CESR) report—a report that is shaping the next stage of Chesapeake watershed restoration. Cleanup efforts can achieve greater success by accelerating efforts to restore these upstream waterways.

The Bay Needs You

The State of the Bay Report makes it clear that the Bay needs our support now more than ever. Your donation helps the Chesapeake Bay Foundation maintain our momentum toward a restored Bay, rivers, and streams for today and generations to come.

Donate Today


Do you enjoy working with others to help clean the Chesapeake Bay? Do you have a few hours to spare? Whether growing oysters, planting trees, or advocating for a clean Bay, there are plenty of ways you can contribute.

This website uses cookies to tailor and enhance your online experience. By continuing, you are agreeing to our use of cookies. For more information, including details on how to disable cookies, please visit our Privacy Policy. Close