Maryland Route 450

Maryland Route 450
State	MD
Type	MD
Route	450
Direction a	West
Terminus a	Annapolis
Direction b	East
Terminus b	Crofton

Maryland Route 450 is a state highway in the United States serving central Anne Arundel County and parts of Prince George's County on the Delmarva Peninsula. The highway connects historic Annapolis with suburban communities near Washington and provides access to institutions such as the United States Naval Academy and corridors toward Baltimore and Upper Marlboro. Route 450 parallels major arteries including U.S. Route 50 and links transportation nodes near Baltimore–Washington Parkway and Interstate 97.

Route description

Maryland Route 450 begins in downtown Annapolis near landmarks like the Maryland State House, the United States Naval Academy, and the Annapolis Harbor. Traveling eastward, the highway passes civic sites associated with Anne Arundel County and crosses waterways with proximity to the Severn River and the South River. The corridor intersects routes that serve Parole commercial areas and connects with U.S. Route 50 near facilities linked to Baltimore–Washington International Airport and Fort Meade. Continuing, Route 450 moves through suburbs adjacent to Glen Burnie and industrial zones tied to firms with operations near the BWI Business District. East of the Patuxent River, the roadway approaches Crofton and links to roads providing access toward Prince George's County communities and federal installations such as NSA-relevant complexes in the region.

Along its length the highway interfaces with rail corridors serving Amtrak and MARC Train operations, and its right-of-way abuts commercial nodes anchored by retailers and institutions including branches of the Anne Arundel County Public Library system. The route's character varies from two-lane urban streets near Downtown Annapolis to suburban multi-lane segments serving commuter traffic bound for Washington Metro connections and surface access to Interstate 97 and Maryland Route 3.

History

The alignment that became Route 450 evolved from colonial roads facilitating access between Annapolis and inland towns tied to trade on the Chesapeake Bay. During the 19th century the corridors connected ports that engaged with shipping routes to Baltimore and markets linked to Philadelphia. In the early 20th century state highway initiatives associated with figures such as those from the Maryland State Roads Commission modernized the roadway; later improvements paralleled regional developments including the rise of Fort Meade and the expansion of BWI Airport. The mid-20th century saw Route 450 adjusted in response to construction of U.S. Route 50 and the Baltimore–Washington Parkway, with alignment shifts to serve growing suburbs like Glen Burnie and Severn.

Postwar suburbanization and federal facility growth prompted widening projects and intersection upgrades influenced by planning authorities including Anne Arundel County agencies and metropolitan planning bodies connected to Washington Metropolitan Area Transit Authority. Later decades brought intersection redesigns coordinated with state transportation policies associated with administrations in Maryland. Preservation interests around historic districts in Annapolis and landmarks like the Maryland State House influenced routings, while economic shifts tied to firms and military tenants near Fort Meade required capacity and access modifications.

Major intersections

The corridor meets a sequence of important crossings that tie Route 450 to regional and national routes: intersections with U.S. Route 50 near Parole and access to Interstate 97; junctions serving Maryland Route 3 and approaches toward Baltimore–Washington International Airport; connectors to roads providing access for Fort Meade and NSA Maryland-adjacent facilities; and terminus links in communities near Crofton that interface with arteries toward Washington and Upper Marlboro. The highway's intersections also provide movements to local collectors serving Glen Burnie, Severn, and commuter nodes feeding MARC Train stations and park-and-ride facilities used by commuters to Washington Metro and federal employment centers.

Auxiliary routes

Spur and connector segments associated with the main corridor serve to link Route 450 with business districts, institutional entrances, and park-and-ride lots near BWI Business District and Parole. These auxiliary alignments include short state-maintained links to service roads providing access to shopping centers anchored by national retailers and to campus entrances of institutions such as municipal facilities in Annapolis and county offices in Anne Arundel County. Additional connectors facilitate movements to arterial routes feeding U.S. Route 50 and the Baltimore–Washington Parkway, and to local roads serving residential subdivisions in Crofton and surrounding suburbs.

Future developments

Planned and proposed projects affecting the Route 450 corridor have been influenced by regional growth trends tied to federal expansion at Fort Meade and transportation planning for the Washington metropolitan area. Proposals by state and county agencies aim to manage congestion through intersection improvements, capacity upgrades near junctions with U.S. Route 50 and Interstate 97, and multimodal access enhancements benefiting connections to MARC Train stations and bus networks operated in coordination with Maryland Transit Administration. Preservation stakeholders focused on historic resources in Annapolis and environmental review offices overseeing waterways such as the Severn River and South River will shape final project scopes. Coordination with federal partners including entities associated with BWI Airport and NSA Maryland may drive targeted improvements to meet security, mobility, and economic objectives.

Category:State highways in Maryland