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WB US 30 over TIMBER CREEK

Map

Coordinates:
+42.01944, -93.42778
42°01'10" N, 93°25'40" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WB US 30 over TIMBER CREEK
Structure number:000000000601695
Location:3.0 MI. E OF JCT. IA 14
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:77.1 ft. [23.5 m]
Total length:191.9 ft. [58.5 m]
Roadway width between curbs:40.4 ft. [12.3 m]
Deck width edge-to-edge:43.3 ft. [13.2 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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: October 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:6,200 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Good [7 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]
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 assessed or calculated scour condition. [5]
Operating rating:63.7 tons [57.9 metric tons]
Inventory rating:38.1 tons [34.6 metric tons]
Sufficiency rating:99.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201599.0GoodGoodVery GoodVery Good-6200
October 201398.4GoodGoodVery GoodExcellent-6100
October 201197.6GoodGoodVery GoodExcellent-5050
October 200997.8GoodGoodVery GoodExcellent-4600
October 200797.8GoodGoodVery GoodExcellent-4700
September 200597.1GoodGoodVery GoodExcellent-6100
December 200397.2GoodVery GoodVery GoodExcellent-6050
June 200197.3GoodVery GoodVery GoodExcellent-5800
December 199995.9GoodGoodVery GoodExcellent-4900
January 199796.0GoodExcellentExcellentExcellent-4650
July 199598.0GoodExcellentExcellentExcellent-4200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,1341,134000
Deck
Reinforced Concrete Decksq. ft.8,2958,2821300
Substructure
Reinforced Concrete Pier Walllinear ft.3636000
Reinforced Concrete Abutmentlinear ft.8787000
Joints
Pourable Jointlinear ft.8008000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3843592500