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HWY MORRSSEY BLV over WATER DORCHESTER BAY

Map 

Coordinates:
+42.30361, -71.04806
42°18'13" N, 71°02'53" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY MORRSSEY BLV over WATER DORCHESTER BAY
Structure number:B160334EUDOTNBI
Old structure number:MDC896042100 (from 1992 edition)
Location:.2 MI E OF I 93
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:66.9 ft. [20.4 m]
Total length:460.0 ft. [140.2 m]
Roadway width between curbs:78.1 ft. [23.8 m]
Deck width edge-to-edge:89.9 ft. [27.4 m]
Vertical clearance below bridge:12.1 ft. [3.7 m]
Owner:State Highway Agency [01]
Year built:1927
Year reconstructed:1978
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: June 2015 

Status:Posted for other load-capacity restriction [R]
Average daily traffic:41,300 [as of 2015]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Pier/abutment protection:In place but in a deteriorated condition [3]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:25.0 tons [22.7 metric tons]
Inventory rating:15.0 tons [13.6 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:26.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$37,028,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201526.5Structurally deficientSatisfactoryPoorFair41300
June 201326.5Structurally deficientSatisfactoryPoorFair41300
June 201131.2Structurally deficientSatisfactoryPoorFair65000
June 200945.6Functionally obsoleteGoodGoodFair19900
June 199944.6Structurally deficientSatisfactoryFairFair19900
June 199543.9Not deficientSatisfactorySatisfactoryFair37500
June 199343.9Not deficientSatisfactoryFairSatisfactory37500
June 199135.0Structurally deficientFairPoorSatisfactory37500