SW Grindstone RD over Lit Third Fk
FairDeKalb County, Missouri · S 20 T 58 N R 32 W · Structure no. 21941
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 109 ft
- 3 main spans
- Daily traffic
- 25
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
SW Grindstone RD over Lit Third Fk is a prestressed concrete continuous tee beam carrying SW Grindstone RD over Lit Third Fk in DeKalb County, Missouri. It was built in 1993, so it is 32 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2044. The structure is 109 ft (33.2 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| 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 SW Grindstone RD over Lit Third Fk built?
It was built in 1993, making it 32 years old in 2025.
What condition is SW Grindstone RD over Lit Third Fk in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.
How much traffic does SW Grindstone RD over Lit Third Fk carry?
About 25 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is SW Grindstone RD over Lit Third Fk?
The structure is 109 ft (33.2 m) long with a longest span of 48 ft (14.6 m) and a deck 25 ft wide.
Who owns SW Grindstone RD over Lit Third Fk?
It is owned by the County Highway Agency.