US-1(NB) over Guernsey Road
PoorChester County, Pennsylvania · Near Jennersville 45G7 · Structure no. 000000000009897
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 97 ft
- 3 main spans
- Daily traffic
- 14,635
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US-1(NB) over Guernsey Road is a prestressed concrete box beam or girders - multiple carrying US-1(NB) over Guernsey Road in Chester County, Pennsylvania. It was built in 1967, so it is 58 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 14,635 vehicles a day, roughly 5% of them trucks, projected to reach 15,620 by 2032. The structure is 97 ft (29.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-1(NB) over Guernsey Road built?
It was built in 1967, making it 58 years old in 2025.
What condition is US-1(NB) over Guernsey Road 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 June 2023.
How much traffic does US-1(NB) over Guernsey Road carry?
About 14,635 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is US-1(NB) over Guernsey Road?
The structure is 97 ft (29.6 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.
Who owns US-1(NB) over Guernsey Road?
It is owned by the State Highway Agency.