Share:

US 34 over SMALL NATURAL STREAM

Map

Coordinates:
+41.01595, -92.69898
41°00'57" N, 92°41'56" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 34 over SMALL NATURAL STREAM
Structure number:000000000037420
Location:2.7 MI. E OF JCT. IA 5
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:12.1 ft. [3.7 m]
Total length:38.1 ft. [11.6 m]
Owner:State Highway Agency [01]
Year built:1959
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: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,260 [as of 2017]
Truck traffic:11% of total traffic
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:Better than present minimum criteria [7]
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]
Sufficiency rating:75.6

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
August 2017Fair5 out of 10426075.6
August 2015Fair5 out of 10394076.6
November 2013Fair5 out of 10300079.5
March 2012Fair5 out of 10296079.7
March 2010Fair5 out of 10385076.9
March 2008Fair5 out of 10376077.2
March 2006Fair5 out of 10417044.3
February 2005Fair5 out of 10408064.4
November 2002Fair5 out of 10402061.6
December 2000Good7 out of 10428026.0
April 1998Good7 out of 10424075.3
December 1996Good7 out of 10378026.0
December 1994Good7 out of 10377083.3
November 1992Good7 out of 10366084.8
December 1990Good7 out of 10354085.1

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Culvert
Reinforced Concrete Culvertlinear ft.921549280