INTERSTATE 79 NB
Carrying INTERSTATE 79 NB over ELK CREEK
0.43 MI SOUTH WV RT 20, Harrison, West Virginia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: INTERSTATE 79 NB
The INTERSTATE 79 NB bridge in Harrison, West Virginia carries INTERSTATE 79 NB over ELK CREEK. It was built in 1970, making it 56 years old today. The structure is built primarily of steel continuous and spans 1 section, stretching 89.5 meters (294 feet) end to end. Daily traffic averages 16,850 vehicles, placing it in the heavily-trafficked tier of West Virginia bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 35.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How INTERSTATE 79 NB compares
Live comparison across West 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 How the historical reference is calculated.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
- 1970
- Material
- Steel Continuous
- Number of Spans
- 1
- Structure Length
- 89.5 m (294 ft)
- Deck Width
- 13.6 m (45 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 16,850 vehicles/day
- Structure Number
- 00000000017A249
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
How to read this record
INTERSTATE 79 NB is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare INTERSTATE 79 NB against other structures in Harrison and across West Virginia. West 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 INTERSTATE 79 NB?
INTERSTATE 79 NB in Harrison, West Virginia has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is INTERSTATE 79 NB inspected?
INTERSTATE 79 NB'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 16,850 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. INTERSTATE 79 NB is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for INTERSTATE 79 NB?
INTERSTATE 79 NB has an NBI inventory load rating of 35.4 metric tons.
Who is responsible for maintaining INTERSTATE 79 NB?
INTERSTATE 79 NB is owned and maintained by State Highway Agency.
How old is INTERSTATE 79 NB and does age affect safety?
INTERSTATE 79 NB was built in 1970, making it 56 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.