Delaware Route 30

Delaware Route 30
DE 30 highlighted in red
Route information
Maintained by DelDOT
Length	22.63 mi[1] (36.42 km)
Existed	1938[2]–present
Tourist routes	Delaware Bayshore Byway
Major junctions
South end	DE 24 in Millsboro
Major intersections	US 9 / DE 404 in Gravel Hill DE 16 near Milton DE 1 in Milford
North end	DE 1 Bus. in Milford
Location
Country	United States
State	Delaware
Counties	Sussex
Highway system
Delaware State Route System List Byways
← DE 28 → DE 32

Delaware Route 30 (DE 30) is a state highway in Sussex County, Delaware. The route runs from an intersection with DE 24 in Millsboro north to DE 1 Business (DE 1 Bus.) in Milford near the area of Lincoln and Cedar Creek. Along the way, DE 30 intersects U.S. Route 9 (US 9)/DE 404 in Gravel Hill, DE 16 west of Milton, and DE 1 at an interchange in Milford.

What is now DE 30 south of Gravel Hill was built as a state highway in various stages during the 1920s and 1930s. A short-lived DE 30 in the 1930s ran from DE 20 in Seaford north and east to DE 404 northwest of Bridgeville. The current DE 30 was first designated by 1938 to connect DE 24 in Millsboro to DE 5 in Milton. The route was rerouted to end at DE 14 (now DE 1) south of Milford by 1971. DE 30 was extended southwest from Millsboro to Bi-State Boulevard between Laurel and Delmar in 1994, heading south concurrent with DE 24, DE 26, and DE 54 between Millsboro and Gumboro before turning to the west. The route's northern terminus was moved to DE 1 Bus. by way of a new road by 2003. An interchange with DE 1 was completed in 2014. DE 30 formerly had an alternate route, DE 30 Alternate (DE 30 Alt.), that was created by 1999 to connect the route with DE 1 by way of Johnson Road and was removed by 2017. In 2022, the southern terminus was cut back to its current location.