Editing Morrison Bridge (section)

==Description and statistics==
[[File:Morrison Bridge - Portland OR.jpg|thumb|right|Colored [[Light-emitting diode|LED]]s highlighting the bridge piers at dusk]]
The bridge is the largest mechanical device in [[Oregon]].<ref>{{Cite news |title=Bright lights, bridge city |first=Don |last=Hamilton |newspaper=[[Portland Tribune]] |date=May 25, 2001}}</ref> {{Convert|36|ft|m|adj=mid|-tall}} gears drive 940-[[ton]] counterweights located inside each of the piers. The {{Convert|69|ft|m|adj=on}} clearance is sufficient for most river traffic, requiring bridge openings only about 30 times a month. The bridge currently carries 50,000 vehicles daily in six lanes. The canted windows of the control tower give the distinctive look of [[air traffic control]] towers. The current bridge does not connect to Morrison Street at its west end because the second bridge was left in operation while the latest version was built, necessitating that the replacement bridge be on a different alignment.<ref name=wood-wortman/>

In 2005, the bridge opened for river traffic an average of 33 times a month.<ref name=wood-wortman/>{{rp|55}}