FH-3 Lake Mary Rd
Carrying FH-3 Lake Mary Rd over Willow Valley Creek
6.9 mi N SR 87, Coconino, Arizona
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FH-3 Lake Mary Rd
The FH-3 Lake Mary Rd bridge in Coconino, Arizona carries FH-3 Lake Mary Rd over Willow Valley Creek. It was built in 1934, making it 92 years old today. It was last reconstructed in 1968, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 31.7 meters (104 feet) end to end. Daily traffic averages 1,409 vehicles, placing it in the moderately-trafficked tier of Arizona bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, 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 81.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How FH-3 Lake Mary Rd compares
Live comparison across Arizona.
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 How the historical reference is calculated.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
- 1934
- Last Reconstructed
- 1968
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 31.7 m (104 ft)
- Deck Width
- 10.4 m (34 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 1,409 vehicles/day
- Structure Number
- 09451
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether FH-3 Lake Mary Rd 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 FH-3 Lake Mary Rd against other structures in Coconino and across Arizona. Arizona 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 FH-3 Lake Mary Rd?
FH-3 Lake Mary Rd in Coconino, Arizona has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is FH-3 Lake Mary Rd inspected?
FH-3 Lake Mary Rd'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 1,409 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FH-3 Lake Mary Rd 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 FH-3 Lake Mary Rd?
FH-3 Lake Mary Rd has an NBI inventory load rating of 81.6 metric tons.
Who is responsible for maintaining FH-3 Lake Mary Rd?
FH-3 Lake Mary Rd is owned and maintained by County Highway Agency.
How old is FH-3 Lake Mary Rd and does age affect safety?
FH-3 Lake Mary Rd was built in 1934, making it 92 years old and last reconstructed in 1968.
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.