WB US 30 over IA 14


+42.00392, -92.91189
42°00'14" N, 92°54'43" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WB US 30 over IA 14
Structure number:000000000601620
Location:At the Jct. IA 14
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:12.8 ft. [3.9 m]
Total length:272.0 ft. [82.9 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:43.3 ft. [13.2 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1995
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans 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: September 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,500 [as of 2015]
Truck traffic:19% of total traffic
Deck condition:Very Good [8 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:Better than present minimum criteria [7]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:99.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017GoodVery GoodVery GoodVery Good250099.0
September 2015GoodVery GoodVery GoodVery Good250099.0
October 2013GoodVery GoodVery GoodVery Good250099.0
October 2011GoodGoodExcellentVery Good165599.0
October 2009GoodGoodExcellentVery Good146598.3
October 2007GoodGoodExcellentVery Good153598.6
September 2005GoodGoodExcellentVery Good242598.6
June 2003GoodExcellentExcellentVery Good241098.6
November 2001GoodExcellentExcellentVery Good241098.6
December 1999GoodExcellentExcellentVery Good152098.6
November 1997GoodExcellentExcellentVery Good158594.0
July 1995GoodExcellentExcellentExcellent-94.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,3631,363000
Reinforced Concrete Decksq. ft.11,92511,924100
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.8787000
Concrete Protective Coatingsq. ft.191191000
Reinforced Concrete Pier Caplinear ft.8484000
Strip Seal Jointlinear ft.8208200
Movable Bearingeach1515000
Fixed Bearingeach55000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.553553000