NM-556 over North Diversion Channel
GoodBernalillo County, New Mexico · 2.24 MI W of I-25 · Structure no. 000000000006651
- Built
- 1966
- 59 years old, rebuilt 2011
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 555 ft
- 7 main spans
- Daily traffic
- 8,882
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-556 over North Diversion Channel is a prestressed concrete stringer/multi-beam or girder carrying NM-556 over North Diversion Channel in Bernalillo County, New Mexico. It was built in 1966 and reconstructed in 2011, so it is 59 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 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 8,882 vehicles a day, roughly 13% of them trucks, projected to reach 12,079 by 2043. The structure is 555 ft (169.2 m) long and 66 ft wide. If it were closed, the detour would be 9.9 mi (16 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-556 over North Diversion Channel built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2011.
What condition is NM-556 over North Diversion Channel 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 July 2023.
How much traffic does NM-556 over North Diversion Channel carry?
About 8,882 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is NM-556 over North Diversion Channel?
The structure is 555 ft (169.2 m) long with a longest span of 80 ft (24.4 m) and a deck 66 ft wide.
Who owns NM-556 over North Diversion Channel?
It is owned by the State Highway Agency.