On the Line Road over Noahs Springs Branch
PoorMontgomery County, Tennessee · 522-543 · Structure no. DAPFORCAT000025
- Built
- 1992
- 33 years old, rebuilt 2018
- Condition
- Poor
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 300
- 2024 count
- Owner
- Federal
- Army
About this bridge
On the Line Road over Noahs Springs Branch is a prestressed concrete box beam or girders - multiple carrying On the Line Road over Noahs Springs Branch in Montgomery County, Tennessee. It was built in 1992 and reconstructed in 2018, so it is 33 years old, younger 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 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.
It carries about 300 vehicles a day, roughly 40% of them trucks, projected to reach 300 by 2046. The structure is 151 ft (46 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was On the Line Road over Noahs Springs Branch built?
It was built in 1992, making it 33 years old in 2025. It was reconstructed in 2018.
What condition is On the Line Road over Noahs Springs 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 November 2024.
How much traffic does On the Line Road over Noahs Springs Branch carry?
About 300 vehicles per day (2024 count), of which roughly 40% are trucks.
How long is On the Line Road over Noahs Springs Branch?
The structure is 151 ft (46 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.
Who owns On the Line Road over Noahs Springs Branch?
It is owned by the Army.