FAS 616 Helm RD over Knox Bayou
FairPosted for loadWashington County, Mississippi · Sec 8 T19N R 6W B · Structure no. SA7600000000268
- Built
- 1972
- 53 years old, rebuilt 2012
- Condition
- Fair
- inspected December 2023
- Type
- Channel Beam
- Concrete
- Length
- 152 ft
- 800 main spans
- Daily traffic
- 100
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
FAS 616 Helm RD over Knox Bayou is a concrete channel beam carrying FAS 616 Helm RD over Knox Bayou in Washington County, Mississippi. It was built in 1972 and reconstructed in 2012, so it is 53 years old, older than the Mississippi average of 38.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 8% of them trucks, projected to reach 140 by 2043. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAS 616 Helm RD over Knox Bayou built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2012.
What condition is FAS 616 Helm RD over Knox Bayou 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 December 2023.
How much traffic does FAS 616 Helm RD over Knox Bayou carry?
About 100 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is FAS 616 Helm RD over Knox Bayou?
The structure is 152 ft (46.3 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.
Who owns FAS 616 Helm RD over Knox Bayou?
It is owned by the County Highway Agency.