(SUM) Summerille

Location:: Potomac River, Northumberland County, Virginia

Site Parameters:
  • Coast Type: Embayed
  • Body of Water : Potomac River
  • Shore Direction of Face: North East
  • Shore Type: Low Bank
  • Average Shore Height: 10 feet
  • Average Fetch: 10 nautical mile
  • Distance to 6ft Contour: 750 feet
  • Type: Headland Control
  • Number of Breakwaters: 2
  • Number of Bays: 1

Land Use: Old Farm
Ownership: Privately owned
Problem: Severe erosion of 12 ft upland bank
(10 ft/yr).
Project purpose: Long-term shore erosion control and demonstration project

Shore morphology is a classic case study that has been researched by VIMS and Corps. The site has a long fetch to east of over 20 miles. The project covers 1,200 ft of shoreline with a spur installed as the first phase in 1978. In 1992, a revetment was built on the downdrift side of the bay and the spur rebuilt; in 1997, large spur breakwaters were constructed off the revetment to set the tangential beach and perch the sand into the bay. The project has long-term management implications by enhancing existing shore features to create headlands and pocket beaches. The bay has recently evolved into static equilibrium over a period of 20 years.

View this location on the Breakwaters Map

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