Boulder Bridge

{{Short description|Historic bridge in Washington, D.C., United States}}

{{Infobox NRHP

| name = Boulder Bridge and Ross Drive Bridge

| nrhp_type = cp

| nocat = yes

| partof = Rock Creek Park Historic District

| partof_refnum = 91001524

| image = Boulder Bridge, Rock Creek Park.jpg

| caption = Boulder Bridge

| location = Rock Creek Park
Washington, D.C.
United States

| coordinates = {{coord|38|56|54|N|77|02|40|W|display=inline,title}}

| locmapin = District of Columbia#USA

| area =

| built = 1902

| architect = W. J. Douglas
Army Corps of Engineers

| architecture = Melan style

| added = March 20, 1980{{NRISref|2009a}}

| designated_nrhp_type = October 23, 1991{{cite web | url = http://www.planning.dc.gov/planning/frames.asp?doc=/planning/lib/planning/preservation/hp_inventory/inventory_narrative_sep_2004.pdf | title = District of Columbia - Inventory of Historic Sites | date = September 1, 2004 | publisher = Government of the District of Columbia | accessdate = July 16, 2009 | url-status = dead | archiveurl = https://web.archive.org/web/20090717032933/http://planning.dc.gov/planning/frames.asp?doc=%2Fplanning%2Flib%2Fplanning%2Fpreservation%2Fhp_inventory%2Finventory_narrative_sep_2004.pdf | archivedate = July 17, 2009 }}

| refnum = 80000348

}}

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.{{cite web | url = http://www.nps.gov/rocr/cultural/history/adhi2b.htm | title = Under Military Rule | date = October 22, 2007 | work = Rock Creek Park Administrative History | publisher = National Park Service | accessdate = July 16, 2009 |archiveurl = https://web.archive.org/web/20050218204642/http://www.nps.gov/rocr/cultural/history/adhi2b.htm |archivedate = February 18, 2005}}

Boulder Bridge and Ross Drive Bridge were added to the National Register of Historic Places on March 20, 1980. In addition, the bridges are contributing properties to the Rock Creek Park Historic District.