SR 72 forms a 17.52 mile arc north from SR 9 and the Delaware City refineries, to SR 7 (Limestone Road) in the Upper Pike Creek Valley, by way of Newark. The state route carries four lanes along the 0.22 mile overlap with U.S. 13 between Wrangle Hill and SR 1, and from Old Baltimore Pike north through Newark, to the east split with SR 2 (Capitol Trail) at Liberty Plaza shopping center.
The state route follows Wrangle Hill Road northwest from near Delaware City through suburban areas of Bear-Glasgow to U.S. 40 (Pulaski Highway). North from Frasers Corner, Sunset Lake Road continues SR 72 by Sunset Lake Preserve to Old Baltimore Pike. South Chapel Street then expands the route into a five-lane boulevard northward by an array of industrial parks beside the Interstate 95 overpass.
SR 72 was extended south along South Chapel Street and Sunset Lake Road from Newark to U.S. 40 and southeast along Wrangle Hill Road to SR 9 by 1967. The route through Newark changed by 1979, with a new alignment (Library Avenue) and bridge over the AMTRAK Northeast Corridor constructed east from South Chapel Street to the curve of eastbound SR 273 (Delaware Avenue) at College Square Shopping Center. Library Avenue replaced the accident prone AMTRAK grade crossing along Chapel Street. Closure of the crossing made Chapel Street discontinuous south of East Park Place, with Wyoming Road built to provide connectivity with the new SR 72 to the east.
Delaware State Route 72 - 2015 Annual Average Daily Traffic (AADT)
- 5,636 - SR 9 to U.S. 13
- 23,483 - SR 1 to SR 71
- 16,646 - Porter Road to U.S. 40
- 18,156 - Reybold Road to Old Baltimore Pike
- 32,733 - Old Baltimore Pike to Delaware Industrial Park
- 34,189 - SR 4 to south Newark limits
- 39,279 - SR 273 to Cleveland Avenue
- 13,534 - SR 2 to Old Possom Park Road
- 17,144 - Thompson Station Road to Corner Ketch Road
- 17,026 - Corner Ketch Road to SR 7
|Wyoming Road leads west from Marrows Road between College Square Shopping Center and Delaware Technology Park to SR 72 (Library Avenue) in Newark. 12/22/17|
|Thompson Station Road exits White Clay Creek State Park and approaches the turn of SR 72 from Paper Mill Road to Possum Park Road at Milford Crossroads. 06/25/10|
|Polly Drummond Hill Road north at SR 72 (Paper Mill Road) and Corner Ketch Road in the Upper Pike Creek Valley. 12/22/12|
06/25/10, 12/22/12, 12/22/17 by AARoads
Page Updated 12-06-2018.