Looking north from the Hawthorne Bridge you can see the Morrison Bridge.
Wikipedia: The Morrison Bridge is a bascule bridge that spans the Willamette River in Portland, Oregon. ... The bridge is the largest mechanical device in Oregon. Thirty-six foot tall gears drive 940 ton counterweights located inside each of the piers. The 69 ft. clearance limits openings to about 30 times a month. It currently carries 50,000 vehicles daily on six lanes.
Wikipedia, continued: The canted windows of the control tower give each the distinctive look of air traffic control towers.
Flat Stanley thought he ought to give equal time to the Morrison Bridge, so here he is!