Structure I2139 · Clark County, NV

Es1 Ramp Us95s over Mlk BLVD

Carries Es1 Ramp Us95s over Mlk BLVD, Neon Spaghetti Bowl.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,543 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

1,543 ft end to end, longest span 156 ft: about 4.3 football fields. 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.

Built20188 years old
Length1543.3 ft470.4 m
Daily traffic6,900counted 2017
Last inspectedFebruary 2023every 24 months

Location

StateNevada
CountyClark
LocationNeon Spaghetti Bowl
CarriesEs1 Ramp Us95s
CrossesMlk BLVD
Coordinates36.17493, -115.16080

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length1543.3 ft (470.4 m)
Max Span155.5 ft (47.4 m)
Deck Width39.0 ft (11.9 m)
Deck Area5597.8 sq m
Main Spans11
Year Built2018

Traffic

Avg Daily Traffic6,900 (2017)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge11

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberI2139

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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