SR 0083; I-83 over Susq.River;r.R.Lowther S
PoorDauphin County, Pennsylvania · John Harris Bridge; I-83 · Structure no. 000000000014257
- Built
- 1960
- 65 years old, rebuilt 1982
- Condition
- Poor
- inspected November 2022
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 3,324 ft
- 19 main spans
- Daily traffic
- 89,499
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 0083; I-83 over Susq.River;r.R.Lowther S is a steel continuous girder and floorbeam system carrying SR 0083; I-83 over Susq.River;r.R.Lowther S in Dauphin County, Pennsylvania. It was built in 1960 and reconstructed in 1982, so it is 65 years old, older than the Pennsylvania average of 54.8 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 89,499 vehicles a day, roughly 12% of them trucks, projected to reach 165,264 by 2032. The structure is 3,324 ft (1,013.2 m) long and 111 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 0083; I-83 over Susq.River;r.R.Lowther S built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1982.
What condition is SR 0083; I-83 over Susq.River;r.R.Lowther S 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 2022.
How much traffic does SR 0083; I-83 over Susq.River;r.R.Lowther S carry?
About 89,499 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is SR 0083; I-83 over Susq.River;r.R.Lowther S?
The structure is 3,324 ft (1,013.2 m) long with a longest span of 170 ft (51.8 m) and a deck 111 ft wide.
Who owns SR 0083; I-83 over Susq.River;r.R.Lowther S?
It is owned by the State Highway Agency.