County Road 6 over Lake Grandby, Buchanan C


+40.11933, -105.76110
40°07'10" N, 105°45'40" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:County Road 6 over Lake Grandby, Buchanan C
Structure number:049000609.0025A
Location:East End of Lake Granby
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:115.2 ft. [35.1 m]
Total length:126.0 ft. [38.4 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.5 ft. [10.5 m]
Skew angle:43°
Owner:County Highway Agency [02]
Year built:1993
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:283 [as of 2016]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:90.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactoryGoodGood28390.9
October 2015GoodGoodVery GoodGood4492.7
October 2013GoodGoodVery GoodGood4492.7
September 2011GoodGoodVery GoodGood4492.7
October 2009GoodGoodVery GoodGood8492.4
September 2007GoodGoodVery GoodGood8492.4
August 2005GoodGoodVery GoodVery Good33989.8
September 2003GoodGoodVery GoodVery Good33989.8
July 2001GoodGoodVery GoodVery Good33989.8
September 1999GoodGoodVery GoodVery Good33989.8
September 1997GoodGoodVery GoodVery Good33989.8
August 1995GoodGoodVery GoodVery Good12892.0
November 1993GoodVery GoodVery GoodVery Good12892.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.5044822020
Steel Protective Coatingsq. ft.5044820022
Reinforced Concrete Decksq. ft.4,3513,267841,0000
Reinforced Concrete Abutmentlinear ft.9492110
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.2522322000
Steel Protective Coatingsq. ft.2522320020