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US 30 over DAVISONS CREEK

Map

Coordinates:
+42.00642, -92.81134
42°00'23" N, 92°48'41" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 30 over DAVISONS CREEK
Structure number:000000000035340
Location:1.5 MILES W OF JCT IA 146
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:19.0 ft. [5.8 m]
Total length:52.2 ft. [15.9 m]
Owner:State Highway Agency [01]
Year built:1954
Year reconstructed:2002
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: December 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:12,400 [as of 2015]
Truck traffic:10% of total traffic
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:54.5

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
December 2016Good7 out of 101240054.5
December 2014Good7 out of 101180054.5
December 2012Good7 out of 101010069.5
December 2010Good7 out of 10990068.1
December 2008Good7 out of 10930068.1
December 2006Good7 out of 10950058.3
November 2004Good7 out of 101100074.4
March 2002Good7 out of 101040074.9
August 2000Good7 out of 101020075.1
November 1998Good7 out of 101010073.2
October 1996Good7 out of 10940073.8
March 1994Good7 out of 10860074.6
December 1992Good8 out of 10680076.2
February 1990Good8 out of 10660076.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Culvert
Reinforced Concrete Culvertlinear ft.5484787000