T 439 over Platte River
FairMorrison County, Minnesota · 0.5 MI N of JCT Csah 43 · Structure no. 49536
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Wood or Timber
- Length
- 95 ft
- 3 main spans
- Daily traffic
- 91
- 1990 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T 439 over Platte River is a wood or timber slab carrying T 439 over Platte River in Morrison County, Minnesota. It was built in 1990, so it is 35 years old, younger than the Minnesota average of 38.5 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 91 vehicles a day, projected to reach 91 by 2029. The structure is 95 ft (28.9 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T 439 over Platte River built?
It was built in 1990, making it 35 years old in 2025.
What condition is T 439 over Platte 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 September 2024.
How much traffic does T 439 over Platte River carry?
About 91 vehicles per day (1990 count).
How long is T 439 over Platte River?
The structure is 95 ft (28.9 m) long with a longest span of 31 ft (9.6 m) and a deck 30 ft wide.
Who owns T 439 over Platte River?
It is owned by the Town or Township Highway Agency.