Navigation Blvd over UPRR Terminal N Mack ST
PoorPosted for loadHarris County, Texas · 0.10 MI W of 67th ST · Structure no. 121020B46641550
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 816 ft
- 11 main spans
- Daily traffic
- 17,800
- 2010 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Navigation Blvd over UPRR Terminal N Mack ST is a prestressed concrete stringer/multi-beam or girder carrying Navigation Blvd over UPRR Terminal N Mack ST in Harris County, Texas. It was built in 1970, so it is 55 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 17,800 vehicles a day, roughly 5% of them trucks, projected to reach 17,800 by 2030. The structure is 816 ft (248.7 m) long and 60 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Navigation Blvd over UPRR Terminal N Mack ST built?
It was built in 1970, making it 55 years old in 2025.
What condition is Navigation Blvd over UPRR Terminal N Mack ST 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 October 2023.
How much traffic does Navigation Blvd over UPRR Terminal N Mack ST carry?
About 17,800 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is Navigation Blvd over UPRR Terminal N Mack ST?
The structure is 816 ft (248.7 m) long with a longest span of 74 ft (22.6 m) and a deck 60 ft wide.
Who owns Navigation Blvd over UPRR Terminal N Mack ST?
It is owned by the City or Municipal Highway Agency.