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John B. Magruder's Dam No. 1

Newport News Park, 13560 Jefferson Avenue, Newport News, VA 23603, USA

To halt Maj. Gen. McClellan's march up the peninsula toward Richmond, Confederate Maj. Gen. Magruder built three dams to create impassable lakes on the Warwick River and fortified the dams to prevent frontal assaults by Union forces during the 1862 Peninsula Campaign. This site is the first of those three dams and is the midpoint between two prewar tide mills at Lee's Mill and Wynne's Mill.


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From I-64 east take exit 250B, Fort Eustis Blvd. Turn left at junction of Fort Eustis Boulevard and Route 143 (Jefferson Avenue). Park is on the right.

Visitor Services

Interpretive center.

Regular Events


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Admission Fee



Park, Daily: Sunrise to sunset; interpretive center, (Memorial Day-Labor Day) Wednesday-Sunday: 9:00 A.M.-5:00 P.M.; remainder of year, Saturday-Sunday 9:00 A.M.-5:00 P.M.



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