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Details NBI 2012

Place Name:Waltham
NBI Structure Number:W040322E3DOTNBI
Route Sign Prefix:U.S. Highway
Route Number:20
Facility Carried:US 20 WB/WESTON ST
Feature Intersected:I 95 /ST128
Location:RT 20 WB AT RT 128
Year Built:1960
RecordType:Roadway is carried ON the structure
Level of Service:Mainline roadway
Owner:State Highway Agency
Highway Agency District:04
Maintenance Responsibility:State Highway Agency
Functional Class:Principal Arterial - Other, Urban
Service On Bridge:Highway-pedestrian
Service Under Bridge:Highway, with or without pedestrian
Latitude:42 22 20.74 N
Longitude:71 16 09.60 W
Material Design:Steel continuous
Design Construction:Stringer/Multi-beam or Girder
Approach Material Design:Steel
Approach Design Construction:Stringer/Multi-beam or Girder
Structure Length (m):74.7
Approach Roadway Width (m):11
Lanes on Structure:2
Lanes under Structure:8
Average Daily Traffic:31300
Year of Average Daily Traffic:2010
Design Load:M 18
Bridge Railings:Do not meet currently acceptable standards.
Historical Significance:Bridge is possibly eligible for the National Register of Historic Places (requires further investigation before determination can be made) or bridge is on a State or local historic register.
# of Spans in Main Structure:2
# of Spans in Approach Structures:2
Bridge Median:No Median
StructureFlared:No flare
Transitions:Does not meet currently acceptable standards.
Approach Guardrail:Meets currently acceptable standards.
Approach Guardrail Ends:Meets currently acceptable standards.
Navigation Control:Not Applicable
Structure Open?:Open, no restrictions
Deck:Fair Condition
Superstructure:Good Condition
Substructure:Satisfactory Condition
Structural Evaluation:Equal to present minimum criteria
Sufficiency Rating (%):89.1