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I-80 over SMALL NATURAL STREAM

Map

Coordinates:
+41.66410, -91.33409
41°39'51" N, 91°20'03" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-80 over SMALL NATURAL STREAM
Structure number:000000000018530
Location:0.6 mi. E of Jct. SR X30
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:12.1 ft. [3.7 m]
Total length:38.1 ft. [11.6 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1960
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:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: October 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:34,400 [as of 2014]
Truck traffic:34% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:99.6 tons [90.5 metric tons]
Inventory rating:75.6 tons [68.7 metric tons]
Sufficiency rating:79.1

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
October 201579.1Fair6 out of 10-34400
October 201383.0Fair6 out of 10-33900
October 201183.0Fair6 out of 10-34100
October 200972.0Fair5 out of 10-32400
November 200772.0Fair5 out of 10-34400
November 200556.0Poor4 out of 10SD33200
November 200356.0Poor4 out of 10SD33200
January 200256.0Poor4 out of 10SD32900
May 200156.0Poor4 out of 10SD31500
August 200056.0Poor4 out of 10SD31100
February 199856.0Poor4 out of 10SD31700
March 199656.0Poor4 out of 10SD26200
November 199439.0Poor3 out of 10SD24900
January 199339.0Poor3 out of 10SD23500
August 199139.0Poor3 out of 10SD23500
September 198972.0Fair5 out of 10-22200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Culvert
Reinforced Concrete Culvertlinear ft.69949320600