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MORRISON ST over WILLAMETTE RIVER

Map 

Coordinates:
+45.51825, -122.67106
45°31'06" N, 122°40'16" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:MORRISON ST over WILLAMETTE RIVER
Structure number:02758 000000000
Location:WILLAMETTE RIVER MP 12.8
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:285.1 ft. [86.9 m]
Total length:759.9 ft. [231.6 m]
Roadway width between curbs:68.6 ft. [20.9 m]
Deck width edge-to-edge:89.9 ft. [27.4 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:68.9 ft. [21.0 m]
Owner:County Highway Agency [02]
Year built:1958
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Other [9]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: March 2015 

Status:Posted for load [P]
Average daily traffic:53,835 [as of 2010]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:51.9 tons [47.2 metric tons]
Inventory rating:30.9 tons [28.1 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:53.9

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201553.9Functionally obsoleteFairFairFair53835
March 201366.8Not deficientFairFairFair53835
March 201166.8Not deficientFairFairFair53835
April 200966.8Not deficientFairFairFair53835
March 200979.0Not deficientFairSatisfactoryGood54373
August 200779.1Not deficientFairSatisfactoryGood53835
July 200679.3Not deficientFairGoodGood52267
October 200479.1Not deficientFairVery GoodVery Good52267
September 200279.3Not deficientFairVery GoodVery Good50745
August 200079.5Not deficientFairVery GoodVery Good49267
July 199883.5Not deficientFairVery GoodVery Good22706
July 199676.1Not deficientFairVery GoodVery Good22706
July 199476.9Not deficientVery GoodVery GoodVery Good22706
June 199244.0Structurally deficientPoorPoorVery Good51130
June 199073.7Not deficientSatisfactoryGoodVery Good41130