SH 55 over DRY CREEK


+43.73250, -116.30389
43°43'57" N, 116°18'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SH 55 over DRY CREEK
Structure number:000000000014756
Location:8.1 NW BOISE WCL
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:59.1 ft. [18.0 m]
Total length:63.0 ft. [19.2 m]
Roadway width between curbs:84.0 ft. [25.6 m]
Deck width edge-to-edge:86.9 ft. [26.5 m]
Skew angle:12°
Owner:State Highway Agency [01]
Year built:1997
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Main span material:Prestressed concrete [5]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,700 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:98.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairSatisfactoryVery GoodVery Good570098.7
November 2013FairSatisfactoryVery GoodVery Good520098.8
November 2011FairSatisfactoryVery GoodVery Good420099.0
November 2009FairSatisfactoryVery GoodVery Good600098.6
November 2007FairSatisfactoryVery GoodVery Good590098.6
December 2005FairSatisfactoryVery GoodVery Good570098.7
December 2003FairSatisfactoryVery GoodVery Good520098.8
December 2001FairSatisfactoryVery GoodVery Good520098.8
December 1999GoodGoodVery GoodVery Good480096.9
December 1997GoodExcellentExcellentExcellent480096.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.608608000
Reinforced Concrete Decksq. ft.5,3162,3582,8581000
Reinforced Concrete Abutmentlinear ft.241241000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.165161400