Old Hollow Road over N Fork Thornton River


+38.68116, -78.25084
38°40'52" N, 78°15'03" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Old Hollow Road over N Fork Thornton River
Structure number:000000000014690
Location:1.60 Fr 600 & .90 To 653
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:21.0 ft. [6.4 m]
Total length:24.0 ft. [7.3 m]
Roadway width between curbs:18.4 ft. [5.6 m]
Deck width edge-to-edge:19.0 ft. [5.8 m]
Skew angle:20°
Owner:State Highway Agency [01]
Year built:1948
Year reconstructed:2001
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:140 [as of 2014]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:75.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$4,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairGoodGoodSatisfactory14075.9
November 2015FairGoodGoodFair14064.9
November 2013FairGoodGoodSatisfactory10276.0
November 2011FairGoodGoodSatisfactory10278.0
November 2009FairVery GoodVery GoodSatisfactory10278.0
November 2007FairVery GoodVery GoodSatisfactory10278.0
November 2005FairVery GoodVery GoodSatisfactory10578.0
November 2003FairVery GoodVery GoodSatisfactory9795.0
December 2001FairExcellentExcellentSatisfactory9794.0
November 2000PoorPoorPoorSatisfactory9417.0
November 1999PoorPoorPoorSatisfactory9438.3
November 1998PoorPoorPoorSatisfactory7338.4
November 1997PoorPoorFairSatisfactory5951.4
November 1996PoorPoorFairFair7751.4
October 1995PoorPoorSatisfactorySatisfactory7762.4
September 1994PoorPoorSatisfactorySatisfactory7762.4
September 1993PoorPoorSatisfactoryGood7762.4
September 1992PoorPoorSatisfactoryGood7762.4
August 1991PoorPoorSatisfactoryGood6562.4