Structure I 956 · Clark County, NV

Sr573 Craig RD over I 15

Carries Sr573 Craig RD over I 15, North Las Vegas.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT314 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

314 ft end to end, longest span 130 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 box-beam bridge.

Built1970rebuilt 1986
Length314.0 ft95.7 m
Daily traffic69,000counted 2021
Last inspectedDecember 2022every 24 months

Location

StateNevada
CountyClark
LocationNorth Las Vegas
CarriesSr573 Craig RD
CrossesI 15
Coordinates36.24022, -115.10177

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length314.0 ft (95.7 m)
Max Span129.9 ft (39.6 m)
Deck Width132.2 ft (40.3 m)
Deck Area3856.7 sq m
Main Spans2
Year Built1970 (reconstructed 1986)

Traffic

Avg Daily Traffic69,000 (2021)
Truck Traffic4%
Lanes On Bridge9
Lanes Under Bridge7

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberI 956

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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