I-205 busway

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A MAX Red Line train at the south portal of one of the I-205 busway's two tunnels in 2015. Built in the late 1970s, the tunnels were first brought into use more than two decades later, by the Red Line and later the Green Line. South portal of MAX Red Line's I-205 tunnel with southbound train (2015).jpg
A MAX Red Line train at the south portal of one of the I-205 busway's two tunnels in 2015. Built in the late 1970s, the tunnels were first brought into use more than two decades later, by the Red Line and later the Green Line.

The I-205 busway was a partially built busway along the right-of-way of the Interstate 205 freeway in Portland, Oregon. Although it never opened as a busway, its right-of-way has been in use by light rail lines partially since 2001 and fully since 2009.

Contents

The transitway, which was physically separate from the parallel freeway lanes, was planned in the mid- and late 1970s as part of the final segment of I-205. [1] Only a graded route with several entrance ramps and two underpass tunnels under I-205 were built. No bridges or overpasses were built until later adaptation for use by MAX Light Rail trains.

The transitway's right-of-way started in the median of I-205 near Portland International Airport and ran south to the junction of I-205 & I-84, where it continued through an underpass under the northbound lanes of I-205. From here it followed the freeway's east embankment to just south of Market Street, where it once again entered a tunnel taking it under the freeway. This tunnel took the right-of-way underneath all lanes (both directions) of I-205, surfacing west of the freeway's southbound lanes at a point just north of Division Street. From there, it continued south along the west side of I-205 to SE Foster Road, where it ended. The entire transitway has now been adapted for use by TriMet light rail trains.

History

In the mid-1970s, Multnomah County officials negotiated a number of improvements to the proposed I-205 freeway with the Oregon Department of Transportation in order to win their support. Among them was the transitway, a bike path and reconfigured interchanges. [2] The transitway was intended to connect at Gateway into the proposed Banfield Transitway, which originally was to have been a busway and would have run along I-84 to the Lloyd District and Downtown.

By the late 1970s, light rail became the selected transit mode in the Banfield corridor and opened in 1986 as Portland's first light rail line (now a portion of the Blue Line). When light rail was selected over the busway option in the Banfield corridor, the fate of the proposed I-205 busway was sealed, although the corridor was, since the late 1970s, considered a potential future light rail line.

The Blue Line uses a short portion of the transitway between the Gateway station and Burnside Street, opened in 1986. The portion of the route north from Gateway opened in September 2001 as the Red Line. The portion south from Burnside (and beyond to the Clackamas Town Center) opened in September 2009 as the Green Line.

Stations

Names of possible stations, as originally proposed in the 1970s, [3] with corresponding later developments:

See also

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References

  1. ↑ Brugger, Joe (June 30, 2009). "Green light for TriMet's MAX Green Line". The Oregonian . Retrieved November 29, 2018.CS1 maint: discouraged parameter (link)
  2. ↑ Redden, Jim (September 10, 2009). "After 35 years of waiting, TriMet's Green Line hits all the parties: Thousands ride new I-205 lne that was born of a '70s freeway rebellion". Portland Tribune . Archived from the original on June 8, 2011. Retrieved May 17, 2012.CS1 maint: discouraged parameter (link)
  3. ↑ "Tri-Met board okays I-205 busway concept" . The Oregonian. February 3, 1976. p. A8. Retrieved April 25, 2020.
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