Structure B2700 · Clark County, NV

US 93 over Canyon

Carries US 93 over Canyon, Lake Mead National Rec..

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT463 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

463 ft end to end, longest span 175 ft: about 6 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201016 years old
Length463.3 ft141.2 m
Daily traffic18,300counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateNevada
CountyClark
LocationLake Mead National Rec.
CarriesUS 93
CrossesCanyon
Coordinates36.00994, -114.76662

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length463.3 ft (141.2 m)
Max Span174.9 ft (53.3 m)
Deck Width81.0 ft (24.7 m)
Deck Area3487.6 sq m
Main Spans3
Year Built2010

Traffic

Avg Daily Traffic18,300 (2021)
Truck Traffic26%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB2700

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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