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IA 330 SB over NORTH TIMBER CREEK

Map

Coordinates:
+42.63611, -93.10000
42°38'10" N, 93°05'60" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IA 330 SB over NORTH TIMBER CREEK
Structure number:000000000035641
Location:2.9 MI. S of JCT. U.S. 30
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:50.9 ft. [15.5 m]
Total length:133.9 ft. [40.8 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:47.2 ft. [14.4 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1979
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:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:7,200 [as of 2014]
Truck traffic:12% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
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 assessed or calculated scour condition. [5]
Operating rating:72.7 tons [66.1 metric tons]
Inventory rating:43.7 tons [39.7 metric tons]
Sufficiency rating:99.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201699.3GoodGoodGoodVery Good-7200
January 201498.4GoodGoodGoodVery Good-6800
January 201299.4GoodGoodVery GoodVery Good-6700
January 201099.5GoodVery GoodVery GoodVery Good-5500
January 200899.5GoodVery GoodVery GoodVery Good-5600
January 200699.3GoodVery GoodVery GoodVery Good-7600
February 200496.2GoodVery GoodVery GoodVery Good-7300
August 200196.4GoodVery GoodVery GoodVery Good-7000
May 199994.6GoodVery GoodVery GoodVery Good-6500
July 199794.8FairVery GoodVery GoodSatisfactory-6300
December 199581.7GoodVery GoodVery GoodVery Good-6100
December 199395.4GoodVery GoodVery GoodVery Good-4870
September 199195.5GoodVery GoodVery GoodVery Good-4710

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Substructure
Reinforced Concrete Abutmentlinear ft.131131000
Steel Pileeach2424000
Reinforced Concrete Pier Caplinear ft.131131000
Joints
Pourable Jointlinear ft.122012200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.269269000
Deck
Reinforced Concrete Slabsq. ft.6,3326,330200