I 15N over Speedway Interchange
FairClark County, Nevada · North of Las Vegas · Structure no. I 965N
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 174 ft
- 3 main spans
- Daily traffic
- 13,150
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 15N over Speedway Interchange is a concrete continuous tee beam carrying I 15N over Speedway Interchange in Clark County, Nevada. It was built in 1963, so it is 62 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 13,150 vehicles a day, roughly 27% of them trucks, projected to reach 14,523 by 2040. The structure is 174 ft (53 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15N over Speedway Interchange built?
It was built in 1963, making it 62 years old in 2025.
What condition is I 15N over Speedway Interchange 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 November 2024.
How much traffic does I 15N over Speedway Interchange carry?
About 13,150 vehicles per day (2021 count), of which roughly 27% are trucks.
How long is I 15N over Speedway Interchange?
The structure is 174 ft (53 m) long with a longest span of 70 ft (21.3 m) and a deck 64 ft wide.
Who owns I 15N over Speedway Interchange?
It is owned by the State Highway Agency.