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N61 over NIOBRARA RIVER

Map

Coordinates:
+42.81300, -101.68900
42°48'47" N, 101°41'20" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N61 over NIOBRARA RIVER
Structure number:S061 21751
Location:9S MERRIMAN
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:120.1 ft. [36.6 m]
Total length:299.9 ft. [91.4 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.7 ft. [11.8 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:2007
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Prestressed concrete [5]
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: March 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:250 [as of 2012]
Truck traffic:14% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Excellent [9 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Equal to present desirable criteria [8]
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]
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:89.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017GoodVery GoodExcellentVery Good25089.9
March 2015GoodVery GoodExcellentExcellent25089.9
March 2013GoodVery GoodExcellentExcellent25089.9
March 2011GoodVery GoodExcellentExcellent19099.6
March 2009GoodExcellentExcellentExcellent19099.6
March 2007FairFairFairSatisfactory22071.3
March 2005FairFairFairSatisfactory24071.3
July 2003FairFairSatisfactorySatisfactory21581.4
February 2001FairFairFairFair20070.4
June 1999FairFairFairFair17570.4
June 1997FairFairFairFair18070.4
July 1995FairSatisfactorySatisfactoryFair19069.4
June 1993FairSatisfactorySatisfactoryFair17066.3
July 1991FairSatisfactorySatisfactoryFair13066.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,2001,200000
Deck
Reinforced Concrete Decksq. ft.11,6918,1843,442650
Substructure
Reinforced Concrete Pier Walllinear ft.8783400
Reinforced Concrete Abutmentlinear ft.8989000
Reinforced Concrete Pier Caplinear ft.8988100
Joints
Compression Jointlinear ft.8900089
Bearings
Elastomeric Bearingeach2424000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6055337020