Accotink Creek Tributary to Potomac River
Cycling trail over Accotink Creek
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Location
Country	United States
State	Virginia
County	Fairfax
City	Fairfax
Physical characteristics
Source	Difficult Run divide
• location	Cobbdale, Virginia
• coordinates	38°51′05″N 077°19′18″W / 38.85139°N 77.32167°W / 38.85139; -77.32167[1]
• elevation	360 ft (110 m)[2]
Mouth	Potomac River (Accotink Bay)
• location	Fort Belvior Military Reservation
• coordinates	38°41′56″N 077°09′40″W / 38.69889°N 77.16111°W / 38.69889; -77.16111[1]
• elevation	0 ft (0 m)[2]
Length	23.86 mi (38.40 km)[3]
Basin size	52.83 square miles (136.8 km2)[4]
Discharge
• location	Potomac River (Accotink Bay)
• average	61.46 cu ft/s (1.740 m3/s) at mouth with Potomac River[4]
Basin features
Progression	southeast
River system	Potomac River
Tributaries
• left	Bear Run Long Branch Flag Run Calomo Branch Field Lark Branch Long Branch
• right	Crock Branch Turkey Run Long Branch
Waterbodies	Lake Accotink
Bridges	Hill Street, Scott Drive, Warwick Avenue, US 29, Keith Avenue, Rust Hill Place, Chain Bridge Road, University Drive, US 50 (x2), Old Lee Hwy, Pickett Road, Barkley Drive, Prosperity Avenue, Woodburn Road, King Arthur Road, Accotink Drive, VA 236, VA 620, Old Keene Mill Road, VA 289, Hooes Road, Barta Road, VA 286, Fullerton Road, I-95, Telegraph Road, Ehlers Road, John J. Kingman Road, US 1, Poe Road

Accotink Creek is a 25.0-mile-long (40.2 km)^[5] tributary stream of the Potomac River in Fairfax County, Virginia, in the United States. At Springfield, Virginia, Accotink Creek is dammed to create Lake Accotink. The stream empties into the Potomac at Gunston Cove's Accotink Bay, to the west of Fort Belvoir.

Variant names

According to the Geographic Names Information System, it has also been known historically as:^[1]

• Accotonck Creek
• Main Branch

Course

Accotink Creek rises near the intersection of Rt. 66 and Rt. 123 in Fairfax County, Virginia. Accotink Creek then flows southeast to meet the Potomac River in Accotink Bay at Fort Belvoir Military Reservation.^[2]

Watershed

Accotink Creek drains 52.82 square miles (136.8 km²) of area, receives about 43.7 in/year of precipitation, has a topographic wetness index of 436.37 and is about 22.5% forested.^[4]