at Eugene, via the PNWR's leased BN trackage. In 2006, PNWR took over operation of the 663/664 train pair from BNSF Railway. These trains run between Vancouver, WA and Albany (663 is the southbound train, 664 goes north) and are PNWR's first to regularly operate outside of Oregon. They alternately use the Oregon Electric District out of Portland and a nearby Union Pacific line between Portland and Salem under an inherited trackage rights agreement. As of September 2008, PNWR was operating run-through unit grain trains from the BNSF to and from Port Westward on the Astoria Line west of Rainier. These trains currently run with BNSF locomotives. Locomotive fleet The locomotive fleet of the PNWR/WPRR primarily consists of used "second generation" products of General Motors Electro-Motive Division. Notable exceptions in the fleet include a handful of GP/SD/SW9 locomotives which are now 60+ years old and still in regular service, as well as an SD7. PNWR also operated a few unique locomotives, including the former PNWR 3300 (which was an EMD SD40-3MR), as well as one of the last remaining SDP40Fs, DLMX 644, as well as RSD-5, DLMX 324. As of late 2014, PNWR 3300 was sold to The Andersons as AEX 100020. Commuter rail The PNWR line between Beaverton and Wilsonville is leased to TriMet for operation of its Westside Express Service (WES) commuter rail service. PNWR freight trains also continue to use the line, but not during times when the passenger trains are operating. Under a contract with TriMet, the rail cars are operated by PNWR crews. Begun in the 1990s and originally led by Washington County, the commuter-rail project was taken over by TriMet in 2002, and the regional transit agency entered into an agreement with PNWR for the use of its right-of-way, and later for the operation of the rail cars. During construction in 2007–2008, the section involved was upgraded for use by commuter trains. Upgrades included a new roadbed, ballast, ties and rail to accommodate passenger train speeds of 60 MPH and freight train speeds of 40 MPH, Centralized Traffic Control signaling, Automatic Train Control at control points, new sidings, station platforms at the end points along with intermediate stations in Tigard, Oregon and Tualatin, Oregon, and in the Progress/Washington Square area near the Beaverton/Tigard city line, and a maintenance shop located in Wilsonville (staffed by TriMet employees). In Beaverton, TriMet also constructed a new spur