State Hwy 433
Carrying State Hwy 433 over South Canadian River
Conchas Dam, San Miguel, New Mexico
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: State Hwy 433
The State Hwy 433 bridge in San Miguel, New Mexico carries State Hwy 433 over South Canadian River. It was built in 1940, making it 86 years old today. The structure is built primarily of concrete and spans 5 sections, stretching 106.6 meters (350 feet) end to end. Daily traffic averages 150 vehicles, placing it in the lower-traffic tier of New Mexico bridges. It is owned and maintained by Army Corps of Engineers.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 11.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How State Hwy 433 compares
Live comparison across New Mexico.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1940
- Material
- Concrete
- Number of Spans
- 5
- Structure Length
- 106.6 m (350 ft)
- Deck Width
- 7.6 m (25 ft)
- Owner
- Army Corps of Engineers
- Avg Daily Traffic
- 150 vehicles/day
- Structure Number
- CEPSWANM-000001
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether State Hwy 433 is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare State Hwy 433 against other structures in San Miguel and across New Mexico. New Mexico bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for State Hwy 433?
State Hwy 433 in San Miguel, New Mexico has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is State Hwy 433 inspected?
State Hwy 433's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 150 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. State Hwy 433 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for State Hwy 433?
State Hwy 433 has an NBI inventory load rating of 11.7 metric tons.
Who is responsible for maintaining State Hwy 433?
State Hwy 433 is owned and maintained by Army Corps of Engineers.
How old is State Hwy 433 and does age affect safety?
State Hwy 433 was built in 1940, making it 86 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.