NW Old 36 HWY over Mill CR
PoorPosted for loadCaldwell County, Missouri · S 17 T 57 N R 28 W · Structure no. 24312
- Built
- 1922
- 103 years old
- Condition
- Poor
- inspected November 2023
- Type
- Truss - Thru
- Steel
- Length
- 60 ft
- 1 main span
- Daily traffic
- 100
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
NW Old 36 HWY over Mill CR is a steel truss - thru carrying NW Old 36 HWY over Mill CR in Caldwell County, Missouri. It was built in 1922, so it is 103 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 115 by 2044. The structure is 60 ft (18.3 m) long and 20 ft wide. 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 |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 NW Old 36 HWY over Mill CR built?
It was built in 1922, making it 103 years old in 2025.
What condition is NW Old 36 HWY over Mill CR 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 November 2023.
How much traffic does NW Old 36 HWY over Mill CR carry?
About 100 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is NW Old 36 HWY over Mill CR?
The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 20 ft wide.
Who owns NW Old 36 HWY over Mill CR?
It is owned by the County Highway Agency.