Old Plank RD over Small Str
PoorBoone County, Missouri · S 2 T 47 N R 13 W · Structure no. 24139
- Built
- 1986
- 39 years old
- Condition
- Poor
- inspected December 2024
- Type
- Culvert
- Steel
- Length
- 21 ft
- 3 main spans
- Daily traffic
- 100
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Old Plank RD over Small Str is a steel culvert carrying Old Plank RD over Small Str in Boone County, Missouri. It was built in 1986, so it is 39 years old, younger 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 3 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.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 175 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Plank RD over Small Str built?
It was built in 1986, making it 39 years old in 2025.
What condition is Old Plank RD over Small Str 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 December 2024.
How much traffic does Old Plank RD over Small Str carry?
About 100 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Old Plank RD over Small Str?
The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m).
Who owns Old Plank RD over Small Str?
It is owned by the City or Municipal Highway Agency.