+32.33110, -101.16322
32°19'52" N, 101°09'48" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IH 20 over IATAN CREEK
Structure number:081680000507009
Location:0.9 MI E OF HOWARD CO LN
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:7.9 ft. [2.4 m]
Total length:44.0 ft. [13.4 m]
Owner:State Highway Agency [01]
Year built:1928
Year reconstructed:1984
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 13.5 / H 15 [2]
Number of main spans:8
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:14,370 [as of 2013]
Truck traffic:37% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
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]
Sufficiency rating:71.0

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
May 2017Fair6 out of 101437071.0
May 2015Fair6 out of 101437070.7
May 2013Fair6 out of 101048071.2
May 2011Fair6 out of 101240070.9
May 2009Fair6 out of 101165071.3
April 2007Fair6 out of 101197078.6
April 2005Fair6 out of 101057078.8
April 2003Fair6 out of 101236078.6
April 2001Fair6 out of 101050078.8
March 1999Fair6 out of 101130093.9
April 1997Fair6 out of 10920094.1
May 1995Good7 out of 101099082.0
April 1993Good7 out of 10910078.2
August 1990Good7 out of 10910081.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1,3131,2486500