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ST 3 CAMBRIDGE ST over COMB ST3,ST28 & CHARLES

Map 

Coordinates:
+42.36111, -71.07250
42°21'40" N, 71°04'21" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:ST 3 CAMBRIDGE ST over COMB ST3,ST28 & CHARLES
Structure number:B160094F0DOTNBI
Location:.2 MI W OF BLOSSOM ST
Purpose:Carries highway and railroad over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:243.1 ft. [74.1 m]
Total length:2134.9 ft. [650.7 m]
Roadway width between curbs:90.6 ft. [27.6 m]
Deck width edge-to-edge:106.6 ft. [32.5 m]
Vertical clearance below bridge:29.9 ft. [9.1 m]
Owner:State Highway Agency [01]
Year built:1905
Year reconstructed:1959
Historic significance:Bridge is on the National Register of Historic Places [1]
Number of main spans:11
Main spans material:Steel [3]
Main spans design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2014 

Status:Posted for load [P]
Average daily traffic:55,700 [as of 2012]
Truck traffic:4% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:35.1 tons [31.9 metric tons]
Inventory rating:22.4 tons [20.4 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:18.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$107,831,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201418.5Structurally deficientPoorSeriousFair55700
September 201218.5Structurally deficientPoorSeriousFair55700
September 201018.8Structurally deficientPoorSeriousFair22600
September 200832.0Structurally deficientSeriousSeriousFair49500