Workers install industrial-strength netting as a precautionary measure against falling limestone at the Washington National Cathedral following the 2011 earthquake. (Nikki Kahn/THE WASHINGTON POST)

The Washington National Cathedral will receive $100,000 to fix damage remaining from the August 2011 earthquake after winning a social media contest put on by the National Trust for Historic Preservation and the American Express Foundation.

The contest, called Partners in Preservation, began April 24 and ran through May 10. To win points, owners and managers of historical properties encouraged supporters to post mentions, photos or videos of their properties on social media using the hash tag #PreserveDMV.

In all, the American Express Foundation will give $1 million to fund projects for historic properties in the Washington-area, based on the support the projects received during the contest and a panel of local preservation experts.

Every project in the contest will receive at least $5,000 and another dozen projects will receive more. Here’s a list of the grants the trust announced Monday:

• All Souls Church Unitarian, in Adams Morgan, D.C. : $50,000 to repair historic bell tower, including clock, stonework and windows.

• Carter G. Woodson Home National Historic Site, in Shaw, D.C.: $75,000 to rebuild front and rear façade in order to stabilize home for public access.

• Colvin Run Mill, in Great Falls, Va.: $75,000 to bring the 18th century grain elevator into working order.

• Congressional Cemetery, in Barney Circle, D.C.: $50,000 to replace and reconstruct 26 mausoleum vault roofs.

• Dumbarton Oaks Park, in Georgetown, D.C.: $50,000 to repair the garden’s viewing platform, stone houses and retaining wall.

• The GALA Hispanic Theatre at The Tivoli, in Columbia Heights, D.C.: $35,000 to restore three ornate interior domes.

• Greenbelt Theatre, in Greenbelt, Md.: $75,000 to renovate Art Deco lobby.

• LAMB at Military Road School, in Brightwood, D.C.: $60,000 to repair the building’s exterior including columns and cupola.

• Meridian Hill Park, in Columbia Heights, D.C.: $50,000 to stabilize and repair exposed aggregate concrete grotto.

• Metropolitan African Methodist Episcopal Church, in Scott Circle, D.C.: $90,000 to restore stained glass windows on church’s primary facade.

• Mount Vernon, in Mount Vernon, Va.: $100,000 to paint, plaster and restore Large Dining Room.

• Sixth & I Historic Synagogue, in Mount Vernon Square, D.C.: $75,000 to repair and preserve a dozen stained glass windows.

Follow Jonathan O’Connell on Twitter: @oconnellpostbiz