I 15 over Muddy River
FairClark County, Nevada · Glendale · Structure no. B 781S
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 271 ft
- 3 main spans
- Daily traffic
- 19,250
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Muddy River is a prestressed concrete stringer/multi-beam or girder carrying I 15 over Muddy River 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 19,250 vehicles a day, roughly 27% of them trucks, projected to reach 20,681 by 2040. The structure is 271 ft (82.5 m) long and 43 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15 over Muddy River built?
It was built in 1962, making it 63 years old in 2025.
What condition is I 15 over Muddy River 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 15 over Muddy River carry?
About 19,250 vehicles per day (2021 count), of which roughly 27% are trucks.
How long is I 15 over Muddy River?
The structure is 271 ft (82.5 m) long with a longest span of 91 ft (27.7 m) and a deck 43 ft wide.
Who owns I 15 over Muddy River?
It is owned by the State Highway Agency.