+38.05959, -107.69078
38°03'35" N, 107°41'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 550 ML over DEXTER CREEK
Structure number:L-06-S
Location:3.5 MI N. OF JCT SH 361 M
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:35.1 ft. [10.7 m]
Total length:38.1 ft. [11.6 m]
Roadway width between curbs:40.4 ft. [12.3 m]
Deck width edge-to-edge:49.9 ft. [15.2 m]
Skew angle:36°
Owner:State Highway Agency [01]
Year built:1988
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:Frame [07]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,300 [as of 2011]
Truck traffic:5% of total traffic
Deck condition:Good [7 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:Equal to present minimum criteria [6]
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:97.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017GoodGoodGoodGood430097.8
June 2015GoodGoodGoodGood430097.8
April 2013GoodGoodGoodGood430097.8
June 2011GoodGoodGoodGood390097.9
May 2007GoodGoodGoodGood390097.9
May 2005GoodGoodGoodGood409097.9
April 2003GoodGoodGoodGood498397.6
May 1999Fair---426597.8
May 1997Fair---435095.8
May 1995Fair---435095.7
May 1993Fair---345098.0
April 1992Fair---345096.0
May 1991Good---345097.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Abutmentlinear ft.124124000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.7676000
Reinforced Concrete Slabsq. ft.1,8921,8771410
Wearing Surfacessq. ft.1,5391,539000