FM 3400 over Flat Creek
FairMcLennan County, Texas · 2.3 MI S of FM 434 · Structure no. 091610083314040
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 128 ft
- 4 main spans
- Daily traffic
- 2,396
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FM 3400 over Flat Creek is a concrete stringer/multi-beam or girder carrying FM 3400 over Flat Creek in McLennan County, Texas. It was built in 1982, so it is 43 years old, younger than the Texas average of 44.4 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.
It carries about 2,396 vehicles a day, roughly 5% of them trucks, projected to reach 3,020 by 2033. The structure is 128 ft (39.1 m) long and 42 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 FM 3400 over Flat Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is FM 3400 over Flat Creek 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 2024.
How much traffic does FM 3400 over Flat Creek carry?
About 2,396 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is FM 3400 over Flat Creek?
The structure is 128 ft (39.1 m) long with a longest span of 32 ft (9.8 m) and a deck 42 ft wide.
Who owns FM 3400 over Flat Creek?
It is owned by the State Highway Agency.