W. Union Blvd. over Monocacy Creek
FairLehigh County, Pennsylvania · East of Pa 378 Bethlehem · Structure no. 000000000039976
- Built
- 1997
- 28 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 147 ft
- 2 main spans
- Daily traffic
- 21,872
- 1997 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
W. Union Blvd. over Monocacy Creek is a prestressed concrete continuous box beam or girders - multiple carrying W. Union Blvd. over Monocacy Creek in Lehigh County, Pennsylvania. It was built in 1997, so it is 28 years old, younger than the Pennsylvania average of 54.8 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 21,872 vehicles a day, roughly 12% of them trucks, projected to reach 25,000 by 2020. The structure is 147 ft (44.8 m) long and 65 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W. Union Blvd. over Monocacy Creek built?
It was built in 1997, making it 28 years old in 2025.
What condition is W. Union Blvd. over Monocacy Creek 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 April 2024.
How much traffic does W. Union Blvd. over Monocacy Creek carry?
About 21,872 vehicles per day (1997 count), of which roughly 12% are trucks.
How long is W. Union Blvd. over Monocacy Creek?
The structure is 147 ft (44.8 m) long with a longest span of 70 ft (21.3 m) and a deck 65 ft wide.
Who owns W. Union Blvd. over Monocacy Creek?
It is owned by the City or Municipal Highway Agency.