Tiber Alley over Tiber River
PoorPosted for loadHoward County, Maryland · 0.01 MI S Main Street · Structure no. 200000HO0107010
- Built
- 1935
- 90 years old, rebuilt 1984
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 38 ft
- 1 main span
- Daily traffic
- 45
- 2000 count
- Owner
- County
- County Highway Agency
About this bridge
Tiber Alley over Tiber River is a steel stringer/multi-beam or girder carrying Tiber Alley over Tiber River in Howard County, Maryland. It was built in 1935 and reconstructed in 1984, so it is 90 years old, older than the Maryland average of 52.6 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. Its operating status is: posted for load restriction.
It carries about 45 vehicles a day, roughly 50% of them trucks, projected to reach 50 by 2015. The structure is 38 ft (11.6 m) long and 17 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Tiber Alley over Tiber River built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1984.
What condition is Tiber Alley over Tiber River 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 March 2023.
How much traffic does Tiber Alley over Tiber River carry?
About 45 vehicles per day (2000 count), of which roughly 50% are trucks.
How long is Tiber Alley over Tiber River?
The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 17 ft wide.
Who owns Tiber Alley over Tiber River?
It is owned by the County Highway Agency.