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340TH over ROCK CREEK

Mitchell County, Iowa

Map

Coordinates:
+43.25522, -92.92091
43°15'19" N, 92°55'15" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:340TH over ROCK CREEK
Structure number:000000000247621
Location:097180103
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:34.1 ft. [10.4 m]
Total length:90.9 ft. [27.7 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:32.2 ft. [9.8 m]
Owner:County Highway Agency [02]
Year built:1977
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:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:45 [as of 2017]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:97.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018GoodGoodGoodGood4597.0
February 2016GoodGoodGoodGood3097.0
February 2014GoodGoodGoodGood3097.0
February 2012GoodGoodGoodGood3097.0
January 2010GoodGoodGoodGood3097.0
February 2008PoorGoodGoodPoor3070.0
January 2006GoodVery GoodVery GoodGood3097.0
June 2004GoodVery GoodVery GoodGood3097.0
February 2002GoodVery GoodVery GoodGood3097.0
January 2000GoodVery GoodVery GoodGood9097.0
November 1997GoodVery GoodVery GoodGood9097.0
March 1996GoodVery GoodVery GoodGood9097.0
May 1994GoodVery GoodVery GoodGood9097.0
June 1992GoodVery GoodVery GoodVery Good5097.0
August 1990GoodVery GoodVery GoodVery Good5095.1