450th Avenue over Lake St. John Outlet


+44.54916, -97.20914
44°32'57" N, 97°12'33" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:450th Avenue over Lake St. John Outlet
Structure number:000000029140176
Location:2.6S of Lake Norden
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:10.5 ft. [3.2 m]
Total length:29.9 ft. [9.1 m]
Roadway width between curbs:32.5 ft. [9.9 m]
Deck width edge-to-edge:33.1 ft. [10.1 m]
Owner:County Highway Agency [02]
Year built:1930
Year reconstructed:1979
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:324 [as of 2016]
Truck traffic:2% of total traffic
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Better than present minimum criteria [7]
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]
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]
Sufficiency rating:78.5

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
June 2018Fair5 out of 1032478.5
June 2016Fair5 out of 1032479.3
June 2014Fair5 out of 1032479.3
June 2012Fair5 out of 1032486.0
August 2010Poor5 out of 1032455.9
August 2008Poor5 out of 1032455.9
August 2006Poor7 out of 1032456.9
July 2004Good7 out of 1032497.0
August 2002Good7 out of 1032497.0
July 2000Good8 out of 1032497.0
September 1998Poor3 out of 1032452.9
August 1996Good7 out of 1032497.0
July 1994Good7 out of 1032497.0
September 1992Good7 out of 1032497.0
June 1990Good7 out of 1032497.0