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N97 over NIOBRARA RIVER

Map 

Coordinates:
+42.80735, -100.67272
42°48'26" N, 100°40'22" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:N97 over NIOBRARA RIVER
Structure number:S097 13367
Location:9SW VALENTINE
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:100.1 ft. [30.5 m]
Total length:203.1 ft. [61.9 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.4 ft. [11.7 m]
Owner:State Highway Agency [01]
Year built:1994
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
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 2011 

Status:Open, no restriction [A]
Average daily traffic:395 [as of 2008]
Truck traffic:16% 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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inventory rating:60.4 tons [54.9 metric tons]
Sufficiency rating:97.8

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201197.8Not deficientVery GoodExcellentVery Good395
March 200997.8Not deficientVery GoodExcellentVery Good395
March 200798.0Not deficientVery GoodExcellentVery Good350
March 200597.8Not deficientVery GoodExcellentExcellent390
July 200398.0Not deficientExcellentExcellentExcellent345
February 200197.9Not deficientExcellentExcellentExcellent380
June 199998.2Not deficientExcellentExcellentExcellent300
July 199798.3Not deficientExcellentExcellentExcellent270
July 199598.5Not deficientExcellentExcellentExcellent230
December 199498.5Not deficientExcellentExcellentExcellent230