Structure I2802 · Clark County, NV

Silverado Ranch Bl over I 15

Carries Silverado Ranch Bl over I 15, South Las Vegas.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT278 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 8/9

278 ft end to end, longest span 138 ft: about 4 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.

Built200818 years old
Length277.9 ft84.7 m
Daily traffic48,500counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateNevada
CountyClark
LocationSouth Las Vegas
CarriesSilverado Ranch Bl
CrossesI 15
Coordinates36.01318, -115.18039

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length277.9 ft (84.7 m)
Max Span137.8 ft (42 m)
Deck Width144.0 ft (43.9 m)
Deck Area3718.3 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic48,500 (2021)
Truck Traffic3%
Lanes On Bridge9
Lanes Under Bridge6

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberI2802

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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