Route 150 (MTA Maryland)

Route 150
Route 150 bus turning onto Baltimore Street
Overview
System	Maryland Transit Administration
Garage	Bush
Status	active
Began service	1991
Predecessors	Bus Route 12 (1973-1991)
Route
Locale	Baltimore City Baltimore County
Communities served	Ellicott City Catonsville
Other routes	1, 3, 5, 7, 8, 10, 11, 15, 19, 20, 23, 27, 30, 35, 36, 38, qb40, qb46, qb47, qb48, 61, 64, 77, 91, 99, 120, 160
Service
Level	Weekday peak only
Frequency	Every 30 minutes
Operates	6:00 am to 6:30 pm

Route 150 is a bus route operated by the Maryland Transit Administration in Baltimore, Ellicott City, and Columbia, Maryland. The line currently operates between the Village of Harper's Choice in Columbia and Harbor East, mostly via US-29 and US-40, serving The Mall in Columbia and Catonsville.

In 1898, service operated by the Columbia and Maryland Railway began between Baltimore and Ellicott City. The intention was to operate a passenger railroad service between Baltimore and Washington. But it was never extended to any location past Ellicott City. The line was operated as Route 14 until 1927, when service to Ellicott City was redesignated Route 9. The No. 9 Streetcar operated between Ellicott City and Baltimore up until 1952, when it was shortened to a shuttle that operated between Ellicott City and Catonsville only. The shuttle streetcar service lasted until 1955, when it was converted into a shuttle bus. The shuttle bus operation was discontinued in 1957.

Later, Route 929, a commuter bus route marketed as a service for Columbia to Washington commuters, operated several trips each day that originated in Baltimore, and operated to Columbia through Ellicott City before continuing to Washington. Though printed in the schedules, this line was not advertised for this purpose.

Route 12 started providing express service from both the western and eastern suburbs of Baltimore in 1972. The west side service operated from a park-and-ride lot on US-40 near Westview Mall, and the eastern end service from one on Eastern Boulevard known as the Essex Park-and Ride. In 1991, the no. 12 line was redesignated, and west side service was renamed to "Route 150" and east side service to Route 160.