Virginia State Route 657 (Fairfax County)

View north along Walney Road in Ellanor C. Lawrence Park

The southern terminus of SR 657 is at SR 28 (Sully Road), just north of Interstate 66. The terminus is a Right-in/right-out intersection that only allows traffic from and to northbound SR 28. Walney Road is a two-lane undivided road for most of its length, widening to a four-lane divided highway about 0.3 miles south of US 50.

The southern section of Walney Road passes through Ellanor C. Lawrence Park. North of the park, Walney Road tends to divide business parks from residential areas before ending in the traditional center of Chantilly at US 50.

View north along SR 657 (Centreville Road) at Frying Pan Road in the McNair section of Oak Hill.

North of US 50, SR 657 becomes Centreville Road, a divided highway, mostly four lanes wide except at its northern end. There are commercial districts at the southern and northern ends; otherwise most of Centreville Road also divides business parks from residential areas.

SR 657 ends by changing into SR 228 at the southern town limit of Herndon between Parcher Avenue and Herndon Parkway. The street name also changes at the town line (to Elden Street). This is about 0.3 miles north of the SR 267 interchange.