North Lombard Railroad Overcrossing | Portland, OR

Project Details

Owner: Portland Bureau of Transportation
Location: Portland, OR
Value: $12.4M
Completed: 2005

Project Description

This Project was a part of the Port of Portland’s plan to improve the traffic flow in this industrial area by constructing an overcrossing on North Lombard over existing railroad tracks. The structure constructed was a 1,568 ft., nine-span precast/prestressed girder and cast-in-place box girder bridge, founded on 5’ and 6’ X 180’ deep drilled shafts (which at the time, made it one of the deepest shaft operation in the State of Oregon) and had a cast-in-place deck, concrete parapet and steel railings. The approaches on both sides of the bridge were constructed using Expanded Polystyrene (EPS) Blocks, which is a lightweight fill material, to limit settlement as the existing ground conditions could not support traditional fill material. The project also included jet grouting, storm and sanitary sewer, irrigation, wildlife crossing, curbs and sidewalk, paving and landscaping North Lombard Blvd.