Structure G 779S · Clark County, NV

I 15 over Uprr

Carries I 15 over Uprr, Glendale.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9 · sets the ratingSubstructure 7/9

156 ft end to end, longest span 52 ft: about 2 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 box-beam bridge.

Built196264 years old
Length155.8 ft47.5 m
Daily traffic12,850counted 2021
Last inspectedNovember 2024every 48 months

Location

StateNevada
CountyClark
LocationGlendale
CarriesI 15
CrossesUprr
Coordinates36.65890, -114.57627

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length155.8 ft (47.5 m)
Max Span51.8 ft (15.8 m)
Deck Width61.7 ft (18.8 m)
Deck Area893 sq m
Main Spans3
Year Built1962

Traffic

Avg Daily Traffic12,850 (2021)
Truck Traffic24%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberG 779S

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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