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WALKER STREET over PISCATAQUA R BACK CHAN

Map

Coordinates:
+43.08483, -70.74141
43°05'05" N, 70°44'29" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WALKER STREET over PISCATAQUA R BACK CHAN
Structure number:1NH0BR1
Location:200 M SE OF SR103
Purpose:Carries highway and railroad over waterway
Route classification:Local (Urban) [19]
Length of largest span:75.1 ft. [22.9 m]
Total length:299.9 ft. [91.4 m]
Roadway width between curbs:33.8 ft. [10.3 m]
Deck width edge-to-edge:50.5 ft. [15.4 m]
Owner:Navy/Marines [73]
Year built:1913
Year reconstructed:2015
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:7,000 [as of 2011]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Sufficiency rating:93.3
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$19,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017GoodGoodGoodGood700093.3
August 2016GoodGoodVery GoodGood700092.3
August 2015PoorFairPoorSatisfactory700049.5
August 2013PoorSatisfactoryPoorFair700047.6
July 2011PoorSatisfactoryPoorFair700047.6
June 2009PoorSatisfactoryPoorFair542047.9
July 2007PoorSatisfactoryPoorFair542047.9
July 2005FairSatisfactoryFairFair542064.2
June 2003FairSatisfactoryFairFair540764.2