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HWY N WSHNGTN ST over WATER CHARLES RIVER

Map 

Coordinates:
+42.36786, -71.05911
42°22'04" N, 71°03'33" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY N WSHNGTN ST over WATER CHARLES RIVER
Structure number:B1601637MMUNNBI
Old structure number:37MMUN896C16100 (from 1992 edition)
Location:AT CHAS RIV NR BOS GARDEN
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:85.0 ft. [25.9 m]
Total length:423.9 ft. [129.2 m]
Roadway width between curbs:80.1 ft. [24.4 m]
Deck width edge-to-edge:101.1 ft. [30.8 m]
Owner:City or Municipal Highway Agency [04]
Year reconstructed:1956
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Number of main spans:5
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2014 

Status:Open, would be posted or closed except for temporary shoring [D]
Average daily traffic:40,000 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:38.8 tons [35.3 metric tons]
Inventory rating:23.2 tons [21.1 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:26.6
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$22,660,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201426.6Structurally deficientSatisfactorySeriousPoor40000
August 201249.9Structurally deficientSatisfactoryPoorPoor32100
August 201048.1Structurally deficientSatisfactoryPoorFair38400
August 200848.1Structurally deficientSatisfactoryPoorFair38400
August 200658.1Structurally deficientSatisfactoryPoorFair38400
July 200452.0Structurally deficientSatisfactoryPoorFair66000
July 200224.0Structurally deficientSatisfactoryPoorFair66000
November 200024.0Structurally deficientSatisfactoryPoorFair66000
November 199824.0Functionally obsoleteSatisfactoryFairFair58200
May 199660.3Not deficientSatisfactoryFairSatisfactory19900