WB US 30 over IA 14


+42.01111, -93.52222
42°00'40" N, 93°31'20" 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:128.0 ft. [39.0 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:18.0 ft. [5.5 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 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,500 [as of 2014]
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]
Operating rating:73.9 tons [67.2 metric tons]
Inventory rating:44.4 tons [40.4 metric tons]
Sufficiency rating:99.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201599.0GoodVery GoodVery GoodVery Good-2500
October 201399.0GoodVery GoodVery GoodVery Good-2500
October 201199.0GoodGoodExcellentVery Good-1655
October 200998.3GoodGoodExcellentVery Good-1465
October 200798.6GoodGoodExcellentVery Good-1535
September 200598.6GoodGoodExcellentVery Good-2425
June 200398.6GoodExcellentExcellentVery Good-2410
November 200198.6GoodExcellentExcellentVery Good-2410
December 199998.6GoodExcellentExcellentVery Good-1520
November 199794.0GoodExcellentExcellentVery Good-1585
July 199594.0GoodExcellentExcellentExcellent--

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,3631,363000
Reinforced Concrete Decksq. ft.11,92511,925000
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