Route 991 (MTA Maryland)
| Company type | Bus service |
|---|---|
| Industry | Public transportation |
| Founded | 1993 |
Area served | Hagerstown, Frederick, Shady Grove Metro Station, Maryland, United States |
| Products | Commuter bus service |
| Parent | Maryland Transit Administration |
Route 991 is a weekday commuter bus service operated by the Maryland Transit Administration, connecting Hagerstown, Frederick, and the Shady Grove Metro Station. This route is run by the private contractor Eyre Bus Company and primarily travels along I-270 and I-70. Morning trips run from Hagerstown to Shady Grove, with return journeys in the evening. Key stops include Rock Spring Business Park as well as two points within Frederick County.
Ranked among the fastest expanding routes in the MTA's commuter system, Route 991 accommodates more than 1,000 passengers each day, making it the busiest commuter bus line in the network. Overcrowding has been a consistent challenge, particularly for riders boarding in Frederick, as buses frequently reach full capacity shortly after leaving Hagerstown. To mitigate this issue, extra services were added in 2008, and plans have been explored to divide trips into separate routes serving Hagerstown-only and Frederick-only segments to better manage passenger loads.