US Bridges

I 15N over SR168 Glendale/Moapa

Fair

Clark County, Nevada · Glendale · Structure no. I 780N

Built
1962
63 years old
Condition
Fair
inspected December 2022
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
8,500
2017 count
Owner
State
State Highway Agency

About this bridge

I 15N over SR168 Glendale/Moapa is a concrete continuous slab carrying I 15N over SR168 Glendale/Moapa in Clark County, Nevada. It was built in 1962, so it is 63 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,500 vehicles a day, roughly 27% of them trucks, projected to reach 17,579 by 2040. The structure is 123 ft (37.5 m) long and 57 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 15N
CrossesSR168 Glendale/Moapa
LocationGlendale
RouteInterstate 15
CountyClark County
StateNevada
Coordinates36.66058, -114.57406
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length123 ft (37.5 m)
Longest span47 ft (14.3 m)
Deck width57 ft (17.4 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2017)
Projected traffic17,579 by 2040
Trucks27%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 15N over SR168 Glendale/Moapa built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 15N over SR168 Glendale/Moapa in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2022.

How much traffic does I 15N over SR168 Glendale/Moapa carry?

About 8,500 vehicles per day (2017 count), of which roughly 27% are trucks.

How long is I 15N over SR168 Glendale/Moapa?

The structure is 123 ft (37.5 m) long with a longest span of 47 ft (14.3 m) and a deck 57 ft wide.

Who owns I 15N over SR168 Glendale/Moapa?

It is owned by the State Highway Agency.