IH 345 NB over IH 30 US 75 Dart Etc
PoorPosted for loadDallas County, Texas · At IH30/IH345 Interchange · Structure no. 180570009214198
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected June 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 13,114 ft
- 98 main spans
- Daily traffic
- 90,190
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 345 NB over IH 30 US 75 Dart Etc is a steel continuous girder and floorbeam system carrying IH 345 NB over IH 30 US 75 Dart Etc in Dallas County, Texas. It was built in 1971, so it is 54 years old, older than the Texas average of 44.4 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 90,190 vehicles a day, roughly 6% of them trucks, projected to reach 78,931 by 2040. The structure is 13,114 ft (3,997.1 m) long and 58 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 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 345 NB over IH 30 US 75 Dart Etc built?
It was built in 1971, making it 54 years old in 2025.
What condition is IH 345 NB over IH 30 US 75 Dart Etc 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 June 2024.
How much traffic does IH 345 NB over IH 30 US 75 Dart Etc carry?
About 90,190 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is IH 345 NB over IH 30 US 75 Dart Etc?
The structure is 13,114 ft (3,997.1 m) long with a longest span of 230 ft (70.1 m) and a deck 58 ft wide.
Who owns IH 345 NB over IH 30 US 75 Dart Etc?
It is owned by the State Highway Agency.