IRR# CO RD 500
Carrying IRR# CO RD 500 over SAN JUAN RIVER
12.4 MI SW OF PAGOSA SPGS, Archuleta, Colorado
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: IRR# CO RD 500
The IRR# CO RD 500 bridge in Archuleta, Colorado carries IRR# CO RD 500 over SAN JUAN RIVER. It was built in 1991, making it 35 years old today. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 53.7 meters (176 feet) end to end. Daily traffic averages 111 vehicles, placing it in the lower-traffic tier of Colorado bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 52.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How IRR# CO RD 500 compares
Live comparison across Colorado.
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 How the historical reference is calculated.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
- 1991
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 53.7 m (176 ft)
- Deck Width
- 9.5 m (31 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 111 vehicles/day
- Structure Number
- AR500-S146-160A
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether IRR# CO RD 500 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 IRR# CO RD 500 against other structures in Archuleta and across Colorado. Colorado 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 IRR# CO RD 500?
IRR# CO RD 500 in Archuleta, Colorado has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is IRR# CO RD 500 inspected?
IRR# CO RD 500'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 111 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IRR# CO RD 500 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 IRR# CO RD 500?
IRR# CO RD 500 has an NBI inventory load rating of 52.6 metric tons.
Who is responsible for maintaining IRR# CO RD 500?
IRR# CO RD 500 is owned and maintained by County Highway Agency.
How old is IRR# CO RD 500 and does age affect safety?
IRR# CO RD 500 was built in 1991, making it 35 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.