WYO 450
Carrying WYO 450 over Skull Creek
Newcastle-Clareton Road, Weston, Wyoming
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: WYO 450
The WYO 450 bridge in Weston, Wyoming carries WYO 450 over Skull Creek. It was built in 1989, making it 37 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 27.4 meters (90 feet) end to end. Daily traffic averages 763 vehicles, placing it in the lower-traffic tier of Wyoming bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 33.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How WYO 450 compares
Live comparison across Wyoming.
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 How the historical reference is calculated.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
- 1989
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 27.4 m (90 ft)
- Deck Width
- 11.8 m (39 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 763 vehicles/day
- Structure Number
- FLX
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 (7/9), showing no significant deterioration.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether WYO 450 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 WYO 450 against other structures in Weston and across Wyoming. Wyoming 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 WYO 450?
WYO 450 in Weston, Wyoming has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is WYO 450 inspected?
WYO 450'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 763 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WYO 450 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for WYO 450?
WYO 450 has an NBI inventory load rating of 33.3 metric tons.
Who is responsible for maintaining WYO 450?
WYO 450 is owned and maintained by State Highway Agency.
How old is WYO 450 and does age affect safety?
WYO 450 was built in 1989, making it 37 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.