Is 229 N over Is 229 Cst 4th ST Cs
PoorPosted for loadBuchanan County, Missouri · S 17 T 57 N R 35 W · Structure no. 1910
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 6,826 ft
- 55 main spans
- Daily traffic
- 8,403
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 229 N over Is 229 Cst 4th ST Cs is a steel continuous stringer/multi-beam or girder carrying Is 229 N over Is 229 Cst 4th ST Cs in Buchanan County, Missouri. It was built in 1976, so it is 49 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 8,403 vehicles a day, roughly 22% of them trucks, projected to reach 14,285 by 2044. The structure is 6,826 ft (2,080.6 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 Is 229 N over Is 229 Cst 4th ST Cs built?
It was built in 1976, making it 49 years old in 2025.
What condition is Is 229 N over Is 229 Cst 4th ST Cs 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 Is 229 N over Is 229 Cst 4th ST Cs carry?
About 8,403 vehicles per day (2024 count), of which roughly 22% are trucks.
How long is Is 229 N over Is 229 Cst 4th ST Cs?
The structure is 6,826 ft (2,080.6 m) long with a longest span of 119 ft (36.2 m) and a deck 32 ft wide.
Who owns Is 229 N over Is 229 Cst 4th ST Cs?
It is owned by the State Highway Agency.