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US-70 SEC 04-5.56 over LITTLE MISSOURI RIVER

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-70 SEC 04-5.56 over LITTLE MISSOURI RIVER
Structure number:000000000002488
Location:5.56 MI E OF HOWARD CO
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:89.9 ft. [27.4 m]
Total length:348.1 ft. [106.1 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:31.8 ft. [9.7 m]
Owner:State Highway Agency [01]
Year built:1949
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 18 / H 20 [4]
Number of main spans:6
Main spans material:Steel [3]
Main spans 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:Poor
Status:Open, no restriction [A]
Average daily traffic:1,500 [as of 2014]
Truck traffic:1% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:66.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$977,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017PoorPoorFairSatisfactory150066.9
September 2015PoorPoorFairSatisfactory150066.9
September 2014PoorPoorFairSatisfactory150066.9
September 2013PoorPoorFairSatisfactory170066.4
September 2011PoorPoorFairSatisfactory170052.5
September 2009PoorPoorFairSatisfactory170052.5
September 2007PoorPoorFairSatisfactory170052.5
September 2005PoorPoorSatisfactorySatisfactory220058.9
September 2003PoorPoorSatisfactorySatisfactory220058.6
April 2001PoorPoorSatisfactorySatisfactory170062.1
December 1999PoorPoorSatisfactorySatisfactory170060.1
May 1998FairFairSatisfactorySatisfactory170062.3
January 1997FairFairFairSatisfactory96554.7
October 1995FairFairFairSatisfactory96553.5
December 1994FairFairFairSatisfactory96553.5
December 1993FairFairFairSatisfactory96553.5
February 1993FairFairFairSatisfactory96553.5
September 1991FairSatisfactorySatisfactorySatisfactory184962.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,3921,3722000
Deck
Reinforced Concrete Decksq. ft.11,0308,4018001,8290
Superstructure
Steel Pin or Pin & Hangar Assemblyeach2448120
Substructure
Reinforced Concrete Columneach107003
Reinforced Concrete Pier Walllinear ft.7066040
Reinforced Concrete Abutmentlinear ft.132132000
Reinforced Concrete Pier Caplinear ft.175169060
Bearings
Movable Bearingeach80800
Fixed Bearingeach2080120
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6966360600