IH 635 WB over Northwest Highway
FairDallas County, Texas · 3.5 MI NW of IH 30 · Structure no. 180570237402075
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 270 ft
- 4 main spans
- Daily traffic
- 81,210
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
IH 635 WB over Northwest Highway is a steel continuous stringer/multi-beam or girder carrying IH 635 WB over Northwest Highway in Dallas County, Texas. It was built in 1967, so it is 58 years old, older than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 81,210 vehicles a day, roughly 13% of them trucks, projected to reach 113,700 by 2033. The structure is 270 ft (82.3 m) long and 71 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 635 WB over Northwest Highway built?
It was built in 1967, making it 58 years old in 2025.
What condition is IH 635 WB over Northwest Highway 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 2023.
How much traffic does IH 635 WB over Northwest Highway carry?
About 81,210 vehicles per day (2013 count), of which roughly 13% are trucks.
How long is IH 635 WB over Northwest Highway?
The structure is 270 ft (82.3 m) long with a longest span of 80 ft (24.4 m) and a deck 71 ft wide.
Who owns IH 635 WB over Northwest Highway?
It is owned by the State Highway Agency.