D Street S.W. over 9th ST Expway
FairDistrict of Columbia, District of Columbia · D ST over 9th ST Expwy SW · Structure no. 0177
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 53 ft
- 1 main span
- Daily traffic
- 14,300
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
D Street S.W. over 9th ST Expway is a steel stringer/multi-beam or girder carrying D Street S.W. over 9th ST Expway in District of Columbia, District of Columbia. It was built in 1970, so it is 55 years old, younger than the District of Columbia average of 63.7 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 14,300 vehicles a day, roughly 1% of them trucks, projected to reach 15,000 by 2027. The structure is 53 ft (16.2 m) long and 90 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was D Street S.W. over 9th ST Expway built?
It was built in 1970, making it 55 years old in 2025.
What condition is D Street S.W. over 9th ST Expway 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 March 2023.
How much traffic does D Street S.W. over 9th ST Expway carry?
About 14,300 vehicles per day (2007 count), of which roughly 1% are trucks.
How long is D Street S.W. over 9th ST Expway?
The structure is 53 ft (16.2 m) long with a longest span of 49 ft (14.9 m) and a deck 90 ft wide.
Who owns D Street S.W. over 9th ST Expway?
It is owned by the State Highway Agency.