Firehole Lake Driv over Thermal Area Drainage
PoorPosted for loadTeton County, Wyoming · 10 +/- Mi. South of Madis · Structure no. 1570064P0000000
- Built
- 1935
- 90 years old
- Condition
- Poor
- inspected September 2024
- Type
- Slab
- Wood or Timber
- Length
- 25 ft
- 6 main spans
- Daily traffic
- 1,500
- 2019 count
- Owner
- Federal
- National Park Service
About this bridge
Firehole Lake Driv over Thermal Area Drainage is a wood or timber slab carrying Firehole Lake Driv over Thermal Area Drainage in Teton County, Wyoming. It was built in 1935, so it is 90 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 1,500 vehicles a day, roughly 15% of them trucks, projected to reach 2,000 by 2039. The structure is 25 ft (7.5 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Firehole Lake Driv over Thermal Area Drainage built?
It was built in 1935, making it 90 years old in 2025.
What condition is Firehole Lake Driv over Thermal Area Drainage in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Firehole Lake Driv over Thermal Area Drainage carry?
About 1,500 vehicles per day (2019 count), of which roughly 15% are trucks.
How long is Firehole Lake Driv over Thermal Area Drainage?
The structure is 25 ft (7.5 m) long with a longest span of 4 ft (1.3 m) and a deck 24 ft wide.
Who owns Firehole Lake Driv over Thermal Area Drainage?
It is owned by the National Park Service.