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US ROUTE 1 BYPASS over PISCATAQUA RIVER & ROADS

Map

Coordinates:
+43.08624, -70.76061
43°05'10" N, 70°45'38" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US ROUTE 1 BYPASS over PISCATAQUA RIVER & ROADS
Structure number:3641
Location:MAINE-NEW HAMPSHIRE SL
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:227.0 ft. [69.2 m]
Total length:2804.3 ft. [854.7 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Vertical clearance below bridge:134.5 ft. [41.0 m]
Owner:Other Local Agencies [25]
Year built:1940
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 18 / H 20 [4]
Number of main spans:5
Main spans material:Steel [3]
Main spans design:Movable - Lift [15]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: December 2009

Good/Fair/Poor Condition:Poor
Status:Bridge closed to all traffic [K]
Average daily traffic:20,419 [as of 2016]
Truck traffic:5% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:15.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2009PoorPoorSeriousSerious2041915.6