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Dam Crest Road over Hoover Dam Az. Spillway

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.

Map

Coordinates:
+36.01361, -114.73556
36°00'49" N, 114°44'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Dam Crest Road over Hoover Dam Az. Spillway
Structure number:0305-3003
Location:.25 east of Hoover Dam
Route classification:Local (Rural) [09]
Length of largest span:115.2 ft. [35.1 m]
Total length:123.7 ft. [37.7 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:46.9 ft. [14.3 m]
Owner:Bureau of Reclamation [69]
Year built:1934
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2012

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,000 [as of 2012]
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:98.8
Estimated cost of work:$9,000,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2012FairFairSatisfactoryGood100098.8
January 2009FairSatisfactorySatisfactoryGood60017.0