South Polk ST SB over IH 20
GoodDallas County, Texas · 2.5 MI E of US 67 · Structure no. 180570237404230
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 317 ft
- 4 main spans
- Daily traffic
- 9,127
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
South Polk ST SB over IH 20 is a prestressed concrete stringer/multi-beam or girder carrying South Polk ST SB over IH 20 in Dallas County, Texas. It was built in 1974, so it is 51 years old, older than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,127 vehicles a day, roughly 9% of them trucks, projected to reach 6,000 by 2031. The structure is 317 ft (96.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 South Polk ST SB over IH 20 built?
It was built in 1974, making it 51 years old in 2025.
What condition is South Polk ST SB over IH 20 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does South Polk ST SB over IH 20 carry?
About 9,127 vehicles per day (2019 count), of which roughly 9% are trucks.
How long is South Polk ST SB over IH 20?
The structure is 317 ft (96.6 m) long with a longest span of 98 ft (29.9 m) and a deck 47 ft wide.
Who owns South Polk ST SB over IH 20?
It is owned by the State Highway Agency.