47860 307TH ST over WEST UNION CK


+42.93803, -96.63364
42°56'17" N, 96°38'01" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:47860 307TH ST over WEST UNION CK
Structure number:000000064086100
Location:6S & 0.4W ALCESTER
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:7.9 ft. [2.4 m]
Total length:24.9 ft. [7.6 m]
Owner:County Highway Agency [02]
Year built:1950
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: July 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:500 [as of 2014]
Truck traffic:3% of total traffic
Structural appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
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]
Operating rating:70.0 tons [63.6 metric tons]
Inventory rating:41.8 tons [38.0 metric tons]
Sufficiency rating:96.9
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$23,000

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
July 201696.9Good7 out of 10-500
July 201286.6Good7 out of 10-500
October 200896.9Good7 out of 10-500
May 200496.9Good7 out of 10-500
April 200296.9Good7 out of 10-500
August 200096.9Good7 out of 10-500
September 199896.9Good7 out of 10-500
August 199696.9Good7 out of 10-500
September 199496.9Good7 out of 10-500
July 199296.9Good7 out of 10-500
September 199096.9Good7 out of 10-500