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INTERSTATE 81 over NBL&SBL OVER STREAM

Map

Coordinates:
+36.80625, -81.62624
36°48'23" N, 81°37'34" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:INTERSTATE 81 over NBL&SBL OVER STREAM
Structure number:000000000017489
Location:3.4 TO R107;.46 TO R11
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:7.9 ft. [2.4 m]
Total length:23.0 ft. [7.0 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1963
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:29,578 [as of 2014]
Truck traffic:19% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
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:73.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$65,000

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
February 2017Fair6 out of 102957873.9
February 2015Fair6 out of 102631873.0
February 2013Fair6 out of 102631874.0
February 2011Fair6 out of 102631874.0
June 2009Fair6 out of 102631874.0
July 2007Fair6 out of 102998572.8
July 2005Fair6 out of 103011472.7
October 2003Fair6 out of 103157772.2
August 2001Fair6 out of 102894073.1
August 1999Fair6 out of 102777473.5
July 1997Fair6 out of 102300075.1
July 1995Fair6 out of 102300074.6
July 1993Good7 out of 101986575.8
May 1991Good7 out of 101986575.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Culvert
Reinforced Concrete Culvertlinear ft.564444107121