Is 29 N over Platte Rvr
PoorPosted for loadPlatte County, Missouri · S 25 T 53 N R 35 W · Structure no. 165
- Built
- 1959
- 66 years old, rebuilt 1985
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 704 ft
- 3 main spans
- Daily traffic
- 26,656
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 29 N over Platte Rvr is a steel continuous stringer/multi-beam or girder carrying Is 29 N over Platte Rvr in Platte County, Missouri. It was built in 1959 and reconstructed in 1985, so it is 66 years old, older than the Missouri average of 45.1 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 26,656 vehicles a day, roughly 19% of them trucks, projected to reach 54,645 by 2044. The structure is 704 ft (214.6 m) long and 33 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Is 29 N over Platte Rvr built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1985.
What condition is Is 29 N over Platte Rvr 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 July 2024.
How much traffic does Is 29 N over Platte Rvr carry?
About 26,656 vehicles per day (2024 count), of which roughly 19% are trucks.
How long is Is 29 N over Platte Rvr?
The structure is 704 ft (214.6 m) long with a longest span of 115 ft (35.1 m) and a deck 33 ft wide.
Who owns Is 29 N over Platte Rvr?
It is owned by the State Highway Agency.