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HWY CAMBRIDGE ST over WATER CHARLES RIVER

Map 

Coordinates:
+42.36111, -71.11722
42°21'40" N, 71°07'02" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY CAMBRIDGE ST over WATER CHARLES RIVER
Structure number:B160064F3DOTNBI
Old structure number:MDC896061100 (from 1992 edition)
Location:.4 MI E OF N HARVARD ST
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:75.1 ft. [22.9 m]
Total length:210.0 ft. [64.0 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:61.4 ft. [18.7 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:21°
Owner:State Highway Agency [01]
Year built:1925
Historic significance:Bridge is on the National Register of Historic Places [1]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Arch - Deck [11]
Deck type:Not applicable [N]

Latest Available Inspection: July 2015 

Status:Open, no restriction [A]
Average daily traffic:32,100 [as of 2015]
Truck traffic:3% of total traffic
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Operating rating:59.5 tons [54.1 metric tons]
Inventory rating:35.8 tons [32.5 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:45.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,844,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201545.1Structurally deficient-PoorFair32100
July 201345.1Structurally deficient-PoorFair32100
July 201145.1Structurally deficient-PoorFair32100
July 200945.1Structurally deficient-PoorFair32100
July 199974.5Functionally obsolete-SatisfactorySatisfactory19900
July 199574.3Functionally obsolete-SatisfactorySatisfactory27462
July 199362.0Functionally obsolete-SatisfactoryFair24747
July 199147.9Structurally deficient-FairPoor24000