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8 MILE RD over MILK RIVER 078

Map

Coordinates:
+48.55444, -108.95250
48°33'16" N, 108°57'09" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:8 MILE RD over MILK RIVER 078
Structure number:L03305012+08001
Location:5M SE ZURICH
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:120.1 ft. [36.6 m]
Total length:245.4 ft. [74.8 m]
Roadway width between curbs:19.4 ft. [5.9 m]
Deck width edge-to-edge:20.7 ft. [6.3 m]
Vertical clearance above deck:11.8 ft. [3.6 m]
Owner:County Highway Agency [02]
Year built:1930
Year reconstructed:1940
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:100 [as of 2003]
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:41.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,022,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairFairFairGood10041.0
July 2015FairFairFairGood10041.0
July 2013FairFairFairGood10041.0
July 2011FairFairFairGood10041.0
July 2009FairFairFairGood10045.0
June 2007FairFairFairGood10045.0
April 2005FairFairFairGood10045.0
March 2003FairFairFairGood10045.0
September 2001FairFairFairGood10045.0
April 1999FairFairFairGood10045.0
October 1996FairFairFairGood10045.0
August 1994FairFairFairGood3146.1
February 1992FairFairFairGood3144.4
March 1990FairGoodFairFair9645.3

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.748074800
Steel Protective Coatingsq. ft.5,1433,600001,543
Steel Stringerlinear ft.9618659600
Steel Protective Coatingsq. ft.3,3043,13900165
Deck
Reinforced Concrete Decksq. ft.2,4862,163298250
Superstructure
Steel Trusslinear ft.24013011000
Steel Protective Coatingsq. ft.2702160054
Steel Floor Beamlinear ft.1441014300
Steel Protective Coatingsq. ft.9908910099
Steel Gusset Plateeach2402400
Steel Protective Coatingsq. ft.2422002
Substructure
Reinforced Concrete Pier Walllinear ft.5655100
Reinforced Concrete Abutmentlinear ft.6665100
Reinforced Concrete Pier Caplinear ft.5655010
Joints
Assembly without Seal Jointlinear ft.4343000
Deck
Timber Decksq. ft.2,5832,583000
Wearing Surfacessq. ft.2,5832,583000
Bearings
Movable Bearingeach1401400
Steel Protective Coatingsq. ft.1410004
Fixed Bearingeach1401400
Steel Protective Coatingsq. ft.1410004
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.240024000
Steel Protective Coatingsq. ft.480000480
Timber Bridge Raillinear ft.2492242500