Nfa A129 over Sawmill Branch
PoorHardin County, Tennessee · Nelson RD near Bucktown · Structure no. 360A1290001
- Built
- 1975
- 50 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 21 ft
- 1 main span
- Daily traffic
- 90
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A129 over Sawmill Branch is a steel stringer/multi-beam or girder carrying Nfa A129 over Sawmill Branch in Hardin County, Tennessee. It was built in 1975, so it is 50 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 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: open, temporary structure in place while original is closed.
It carries about 90 vehicles a day, roughly 4% of them trucks, projected to reach 144 by 2042. The structure is 21 ft (6.3 m) long and 21 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A129 over Sawmill Branch built?
It was built in 1975, making it 50 years old in 2025.
What condition is Nfa A129 over Sawmill Branch 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 April 2024.
How much traffic does Nfa A129 over Sawmill Branch carry?
About 90 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Nfa A129 over Sawmill Branch?
The structure is 21 ft (6.3 m) long with a longest span of 4 ft (1.2 m) and a deck 21 ft wide.
Who owns Nfa A129 over Sawmill Branch?
It is owned by the County Highway Agency.