Harmony Hall T-420 over Letort Spring Run
FairCumberland County, Pennsylvania · 2 NE Carlisle/Letrt Sprgs · Structure no. 000000000014075
- Built
- 1937
- 88 years old, rebuilt 1979
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 5,000
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Harmony Hall T-420 over Letort Spring Run is a steel stringer/multi-beam or girder carrying Harmony Hall T-420 over Letort Spring Run in Cumberland County, Pennsylvania. It was built in 1937 and reconstructed in 1979, so it is 88 years old, older than the Pennsylvania average of 54.8 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 5,000 vehicles a day, roughly 8% of them trucks, projected to reach 5,000 by 2043. The structure is 43 ft (13.1 m) long and 26 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 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 | 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 Harmony Hall T-420 over Letort Spring Run built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1979.
What condition is Harmony Hall T-420 over Letort Spring Run 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 August 2023.
How much traffic does Harmony Hall T-420 over Letort Spring Run carry?
About 5,000 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Harmony Hall T-420 over Letort Spring Run?
The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.
Who owns Harmony Hall T-420 over Letort Spring Run?
It is owned by the Town or Township Highway Agency.