45Z004 over Unnamed Waterway
FairSan Juan County, New Mexico · 0.45 MI West JCT US 550 · Structure no. 000000000003520
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 3,922
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
45Z004 over Unnamed Waterway is a prestressed concrete box beam or girders - multiple carrying 45Z004 over Unnamed Waterway in San Juan County, New Mexico. It was built in 1952, so it is 73 years old, older than the New Mexico average of 51.5 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 3,922 vehicles a day, roughly 5% of them trucks, projected to reach 5,333 by 2043. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 45Z004 over Unnamed Waterway built?
It was built in 1952, making it 73 years old in 2025.
What condition is 45Z004 over Unnamed Waterway 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 September 2023.
How much traffic does 45Z004 over Unnamed Waterway carry?
About 3,922 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is 45Z004 over Unnamed Waterway?
The structure is 47 ft (14.3 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.
Who owns 45Z004 over Unnamed Waterway?
It is owned by the City or Municipal Highway Agency.