Maryland Route 97
Generated by GPT-5-miniExpansion Funnel Raw 51 → Dedup 18 → NER 15 → Enqueued 8
| Maryland Route 97 | |
|---|---|
| State | MD |
| Type | MD |
| Route | 97 |
| Length mi | 74.36 |
| Established | 1933 |
| Direction a | South |
| Terminus a | Washington, D.C. |
| Direction b | North |
| Terminus b | Pennsylvania |
| Counties | Prince George's County, Howard County, Montgomery County, Carroll County |
Maryland Route 97 is a state highway in Maryland running approximately 74 miles from the District of Columbia boundary near Washington, D.C. north to the Pennsylvania border near Gettysburg. The route connects suburban and rural communities including Silver Spring, Hyattsville, Ellicott City, Mount Airy, and Westminster, serving as a regional arterial linking to U.S. Route 29, I-95, Interstate 70, and U.S. Route 15.
Route description
Maryland Route 97 begins at the Washington, D.C. line near Hyattsville and proceeds north through Prince George's County across corridors that intersect US 1, US 50, and the Baltimore–Washington Parkway. Crossing into Montgomery County it traverses suburban corridors adjacent to Silver Spring and connects with I-495 near College Park and Greenbelt. Continuing north, the highway enters Howard County linking to US 29 and passing near Columbia and Ellicott City, where it meets MD 32 and I-95/US 1 approaches. In Carroll County the route serves Mount Airy and Westminster, intersecting I-70 and US 140 corridors historically, before reaching the state line and tying into Pennsylvania Route 97 toward Gettysburg and York.
Along its length MD 97 alternates between multilane arterial, divided highway, and two-lane rural road, providing connections to transit hubs including MARC stations and proximity to Metro service in the Red Line corridor. Key interchange points include access to BWI Airport via connecting routes, and freight and commuter links to Port of Baltimore hinterlands.
History
The corridor that became the state highway traces origins to early 19th-century turnpikes and county roads used in the antebellum era connecting Baltimore and Washington, D.C. In the 1930s statewide numbering reorganizations created a continuous route designation to formalize links between Prince George's County communities and northern counties. During the post-World War II suburban boom MD 97 was widened and realigned to accommodate growing commuter flows to Washington, D.C. and Baltimore, with major projects coordinated alongside agencies such as the Maryland State Highway Administration and regional planners from MWCOG.
Significant upgrades in the late 20th century included construction of bypasses around historic downtowns, interchange modifications at I-95, and reconstruction near Westminster tied to I-70 interchange improvements. The highway’s northern extension and connection to Pennsylvania involved coordination with the Pennsylvania Department of Transportation and revisions to route numbering that reflected evolving interstate travel patterns, including links to US 15 for movements toward Gettysburg and Harrisburg.
Major intersections
Major intersections and interchanges along MD 97 include its southern terminus at the District of Columbia boundary; junctions with US 1 in Prince George's County; crossings of US 50 and the Baltimore–Washington Parkway; connection with I-495; interchange with US 29 near Columbia; intersections with MD 32 and access to I-95/US 1 corridors; I-70 interchange near Westminster; and the northern terminus at the Pennsylvania line linking to PA 97 toward Gettysburg and York.
Auxiliary routes
MD 97 has several short auxiliary and spur routes created by realignments and bypasses. These include former alignments retained as MD 97A-type segments serving downtown Westminster and connector spurs near Mount Airy and Ellicott City. Auxiliary designations arose from projects that paralleled historical corridors such as the Old Frederick Road and remnants of 19th-century turnpikes linking Baltimore to western counties. Coordination on these spurs involved county agencies in Carroll County and Howard County.
Future and planned improvements
Planned improvements to MD 97 focus on capacity, safety, and multimodal integration driven by regional growth projections from agencies including Maryland Department of Transportation and MWCOG. Projects under study or development include interchange reconstructions at key junctions with I-70, access improvements near US 29, and corridor safety enhancements in rural sections approaching Pennsylvania. Proposed multimodal elements aim to improve access to MARC stations and Metro connections, and to coordinate with Freight rail and logistics plans impacting the Port of Baltimore and BWI Airport ground access. Environmental and community reviews involve stakeholders such as Maryland State Highway Administration, county governments, and preservation groups concerned with historic districts in Ellicott City and Westminster.