WB DIAAH ENTRANCE
Carrying WB DIAAH ENTRANCE over HORSEPEN RUN
1.3 MILES FROM DULLES AIR, Loudoun, Virginia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: WB DIAAH ENTRANCE
The WB DIAAH ENTRANCE bridge in Loudoun, Virginia carries WB DIAAH ENTRANCE over HORSEPEN RUN. It was built in 1997, making it 29 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 49.6 meters (163 feet) end to end. Daily traffic averages 13,000 vehicles, placing it in the heavily-trafficked tier of Virginia bridges. It is owned and maintained by USDOT.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 7/9. 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 33.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How WB DIAAH ENTRANCE compares
Live comparison across Virginia.
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 How the historical reference is calculated.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
- 1997
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 49.6 m (163 ft)
- Deck Width
- 13.2 m (43 ft)
- Owner
- USDOT
- Avg Daily Traffic
- 13,000 vehicles/day
- Structure Number
- 2100030P0000000
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) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether WB DIAAH ENTRANCE 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 WB DIAAH ENTRANCE against other structures in Loudoun and across Virginia. Virginia 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 WB DIAAH ENTRANCE?
WB DIAAH ENTRANCE in Loudoun, Virginia has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is WB DIAAH ENTRANCE inspected?
WB DIAAH ENTRANCE'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 13,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WB DIAAH ENTRANCE 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 WB DIAAH ENTRANCE?
WB DIAAH ENTRANCE has an NBI inventory load rating of 33.6 metric tons.
Who is responsible for maintaining WB DIAAH ENTRANCE?
WB DIAAH ENTRANCE is owned and maintained by USDOT.
How old is WB DIAAH ENTRANCE and does age affect safety?
WB DIAAH ENTRANCE was built in 1997, making it 29 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.