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OLD IA 979 over SMALL STREAM

Map

Coordinates:
+42.11944, -91.47500
42°07'10" N, 91°28'30" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:OLD IA 979 over SMALL STREAM
Structure number:000000000018460
Location:079041101
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:9.8 ft. [3.0 m]
Total length:21.0 ft. [6.4 m]
Owner:County Highway Agency [02]
Year built:1952
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:2
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:980 [as of 2014]
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 protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Culvert condition:Moderate to major deterioration or disintegration, extensive cracking and leaching or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection in one section, significant corrosion or deep pitting. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:61.8 tons [56.2 metric tons]
Inventory rating:37.1 tons [33.7 metric tons]
Sufficiency rating:88.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
June 201588.5Fair5 out of 10-980
May 201388.5Fair5 out of 10-980
June 201181.2Fair5 out of 10-980
May 200978.0Fair5 out of 10-910
June 200789.3Fair6 out of 10-910
June 200589.0Fair6 out of 10-990
July 200389.0Fair6 out of 10-990
June 200189.0Fair6 out of 10-980
June 199992.0Good7 out of 10-980
November 199692.1Good7 out of 10-880
April 199592.1Good7 out of 10-880
May 199399.6Good7 out of 10-960
February 199196.6Good7 out of 10-960