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Morrison Bridge

Morrison Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: September 3, 2018

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Facility Carried / Feature Intersected
Morrison Street Over Willamette River
Location
Portland: Multnomah County, Oregon: United States
Structure Type
Metal Rivet-Connected Pratt Deck Truss, Movable: Double Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal 8 Panel Rivet-Connected Pratt Deck Truss, Fixed
Construction Date and Builder / Engineer
1958 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Sverdrup and Parcel of St. Louis, Missouri
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
285.0 Feet (86.9 Meters)
Structure Length
3,125.0 Feet (952.5 Meters)
Roadway Width
68.6 Feet (20.91 Meters)
Spans
1 Main Span(s) and 2 Approach Span(s)
Inventory Number
2758

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historic American Engineering Record (HAER) Documentation For This Bridge

HAER Data Pages, PDF

View National Register of Historic Places Nomination Form For This Bridge

View Historic Bridge Inventory Sheet For This Bridge

HAER Documentation, Willamette River Bridges - Data Pages - Drawings -Timeline

This bridge is one of Portland's younger historic bridges, with a 1958 construction date. It offers an interesting comparison to the similar, but older, Burnside Bridge located nearby. Note that the bridge "proper" in structure inventories only includes 760 feet of bridge: the bascule span and two deck truss spans. The total length given here includes the ramp from from Morrison Street on the east end and the ramp to Washington Street on the west end. Note that there are additional ramps to other roads which would have varying lengths.

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Photo Galleries and Videos: Morrison Bridge

 

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Maps and Links: Morrison Bridge

Coordinates (Latitude, Longitude):

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Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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