Is 81 over Trib to Semple Run
FairWashington County, Maryland · 0.43 Mile North of Is 70 · Structure no. 100000210080020
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected August 2024
- Type
- Culvert
- Concrete
- Length
- 174 ft
- Daily traffic
- 68,040
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Is 81 over Trib to Semple Run is a concrete culvert carrying Is 81 over Trib to Semple Run in Washington County, Maryland. It was built in 1965, so it is 60 years old, older than the Maryland average of 52.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 68,040 vehicles a day, roughly 8% of them trucks, projected to reach 93,660 by 2029. The structure is 174 ft (53 m) long. 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 81 over Trib to Semple Run built?
It was built in 1965, making it 60 years old in 2025.
What condition is Is 81 over Trib to Semple 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 2024.
How much traffic does Is 81 over Trib to Semple Run carry?
About 68,040 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Is 81 over Trib to Semple Run?
The structure is 174 ft (53 m) long with a longest span of 10 ft (3 m).
Who owns Is 81 over Trib to Semple Run?
It is owned by the State Highway Agency.