The Boulder Bridge is a historic bridge located in the Washington, D.C. portion of Rock Creek Park, an urban national park listed on the National Register of Historic Places.

Boulder Bridge was constructed in 1902 and carries Beach Drive across Rock Creek, a tributary of the Potomac River.

The reinforced concrete arch bridge was designed by architect W. J. Douglas and was built at a cost of $17,636.

In addition, the bridges are contributing properties to the Rock Creek Park Historic District.

This article about a property in the District of Columbia on the National Register of Historic Places is a stub.