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HWY N WSHNGTN ST over WATER CHARLES RIVER

Map 

Coordinates:
+42.37001, -71.06063
42°22'12" N, 71°03'38" 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:B1601637KMUNNBI
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:119.1 ft. [36.3 m]
Total length:241.2 ft. [73.5 m]
Roadway width between curbs:65.9 ft. [20.1 m]
Deck width edge-to-edge:101.1 ft. [30.8 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Owner:City or Municipal Highway Agency [04]
Year reconstructed:1956
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Open Grating [3]
Wearing surface:Other [9]

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:Basically intolerable requiring high priority of replacement [2]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:38.6 tons [35.1 metric tons]
Inventory rating:23.1 tons [21.0 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:8.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$15,533,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 20148.5Structurally deficientSatisfactorySeriousPoor40000
August 20128.5Structurally deficientSatisfactorySeriousPoor32100
August 20106.0Structurally deficientGoodCriticalFair38400
August 20088.5Structurally deficientGoodSeriousFair38400
August 200638.9Structurally deficientGoodPoorFair38400
July 200436.5Structurally deficientGoodPoorFair66000
August 20026.0Structurally deficientGoodCriticalFair66000
April 200118.3Functionally obsoleteGoodFairFair58200
April 199918.3Functionally obsoleteGoodSatisfactoryFair58200