Steel Bridge

River mile: 12.1

Opened: mid-July 1912 (trains); 9 August 1912 (automobiles); precursor 1888

Type: steel through truss (Pratt), double-deck vertical lift movable bridge

Main Span Length: 211 feet

Center Height to Water: 72 feet (upper deck) 26 feet (lower deck)

Outside Width: 71 feet (four traffic lanes, with two 6 foot walkways)

Color: gun-metal black

Cost: (original bridge) $1.7 million (MAX redesign/bridge rehab 1984-86) $10 million (MAX redesign 2009 ($6.4 million)

Owner: Union Pacific Railroad

Engineer/Designer: Waddell & Harrington, Kansas City, Missouri

Access: pedestrians, bicycles allowed on highway deck; since 2001, on railroad deck

Bridge Opening Signals audible: one long, one short; radio frequency: KTU 534

Average Daily Traffic: 23,000

Historic American Engineering Record OR-21 and Addendum

Last updated: 20 February 2010.