De Witt ST over Tanyard Br
PoorPosted for loadJefferson County, Missouri · S 2 T 39 N R 4 E · Structure no. 16212
- Built
- 1900
- 125 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 30 ft
- 1 main span
- Daily traffic
- 300
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
De Witt ST over Tanyard Br is a steel stringer/multi-beam or girder carrying De Witt ST over Tanyard Br in Jefferson County, Missouri. It was built in 1900, so it is 125 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 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. Its operating status is: posted for load restriction.
It carries about 300 vehicles a day, roughly 2% of them trucks, projected to reach 510 by 2043. The structure is 30 ft (9.1 m) long and 29 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was De Witt ST over Tanyard Br built?
It was built in 1900, making it 125 years old in 2025.
What condition is De Witt ST over Tanyard Br 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 March 2023.
How much traffic does De Witt ST over Tanyard Br carry?
About 300 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is De Witt ST over Tanyard Br?
The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.
Who owns De Witt ST over Tanyard Br?
It is owned by the City or Municipal Highway Agency.