Structure B3215 · Clark County, NV

Laughlin Parkway over Colorado River

Carries Laughlin Parkway over Colorado River, Laughlin.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT724 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

724 ft end to end, longest span 168 ft: about 2.0 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 multi-beam bridge.

Built20242 years old
Length724.1 ft220.7 m
Daily traffic2,500counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateNevada
CountyClark
LocationLaughlin
CarriesLaughlin Parkway
CrossesColorado River
Coordinates35.05527, -114.61111

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length724.1 ft (220.7 m)
Max Span168.0 ft (51.2 m)
Deck Width76.4 ft (23.3 m)
Deck Area5142.3 sq m
Main Spans5
Year Built2024

Traffic

Avg Daily Traffic2,500 (2022)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure NumberB3215

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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