1905 NW Thurman St Bridge

Project Location

Thurman St Bridge

1904 Oregonian Article

Balch Creek 160 ft span60 ft span

Portland’s Historic 1905 Thurman St. Bridge Oldest Bridge, National Register Eligible

Portland’s Antique Thurman St Bridge

Portland’s Handmade Thurman St Bridge

Two Lane Bridge plus sidewalks

Thurman St Bridge Structure Riveted Steel Floor Beam Timber Deck Planks Timber SidewalkTimber Stringers Steel Trusses

Sidewalk overheadRoadway Overhead Riveted Steel Floor Beam

Timber Stringers and Riveted Steel Beam in deteriorating condition

Pavement in Poor Condition

Timber Sidewalk in Poor Condition

Chain Link Rail in Ugly Condition Traffic Rail Substandard

Existing Water Line on Bridge serving Willamette Heights

Thurman Weight Restricted 40,000lbs; 60,000lbs.

Bridge Load Rating results Inadequate Timber Stringers Inadequate Riveted Steel Floor Beams Trusses are Adequate

Replace Members & Deck Keep Trusses & Towers Replace Deck & Superstructure

Replace Members & Deck

Bridge Repair Scope of Work Replace timber stringers with new steel wide flange members Replace riveted floor beam with new steel wide flange beam Replace timber deck with steel deck in-filled with asphalt Replace wood sidewalk Existing trusses satisfactory

New Bridge Superstructure

New Waterline New Traffic RailNew Pedestrian Rail New Slip Resist Sidewalk New Pavement

Bridge Closed During Construction months. Detour in effect.

Macleay Park Open during Construction

Funding Summary Local Highway Bridge Program Funding Federal Contribution$3,392, City Contribution (10.27%)$ 388, Total Project Funding$3,781,000.00