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US-64/491 EBL over SAN JUAN RIVER

Map

Coordinates:
+36.78115, -108.69194
36°46'52" N, 108°41'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-64/491 EBL over SAN JUAN RIVER
Structure number:000000000007148
Location:US-64 Shiprock
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:82.0 ft. [25.0 m]
Total length:1006.0 ft. [306.6 m]
Roadway width between curbs:41.0 ft. [12.5 m]
Deck width edge-to-edge:44.9 ft. [13.7 m]
Owner:State Highway Agency [01]
Year built:1975
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:12
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:20,674 [as of 2016]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:83.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2017FairSatisfactorySatisfactoryFair2067483.8
February 2015FairSatisfactorySatisfactoryFair998684.9
February 2013FairSatisfactorySatisfactoryFair1928283.9
October 2010FairSatisfactorySatisfactoryFair944685.0
August 2008FairSatisfactorySatisfactoryFair1915883.9
December 2006FairFairSatisfactoryFair1148083.8
June 2004FairFairSatisfactoryFair1653464.6
July 2002FairFairSatisfactoryFair630966.1
July 2000FairFairGoodSatisfactory308095.7
July 1998FairFairGoodSatisfactory380695.6
June 1996FairFairGoodGood353795.7
June 1994FairFairGoodGood921895.3
June 1992FairFairGoodGood587196.0
May 1990FairFairGoodGood1188696.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.4,5314,5211000
Deck
Reinforced Concrete Decksq. ft.45,27045,15012000
Concrete Protective Coatingsq. ft.45,27045,270000
Substructure
Reinforced Concrete Abutmentlinear ft.89741500
Steel Pileeach126765000
Reinforced Concrete Pier Caplinear ft.4991904800
Joints
Compression Jointlinear ft.5166545100
Bearings
Movable Bearingeach60450150
Fixed Bearingeach60450150
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.2,02102,02100