KILLIAN HILL ROAD
Carrying KILLIAN HILL ROAD over CSX RAILROAD
IN LILBURN, Gwinnett, Georgia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: KILLIAN HILL ROAD
The KILLIAN HILL ROAD bridge in Gwinnett, Georgia carries KILLIAN HILL ROAD over CSX RAILROAD. It was built in 1975, making it 51 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 39.3 meters (129 feet) end to end. Daily traffic averages 18,700 vehicles, placing it in the heavily-trafficked tier of Georgia bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How KILLIAN HILL ROAD compares
Live comparison across Georgia.
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 How the historical reference is calculated.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
- 1975
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 39.3 m (129 ft)
- Deck Width
- 14.2 m (47 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 18,700 vehicles/day
- Structure Number
- 000000013500900
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • 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 KILLIAN HILL ROAD 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 KILLIAN HILL ROAD against other structures in Gwinnett and across Georgia. Georgia 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 KILLIAN HILL ROAD?
KILLIAN HILL ROAD in Gwinnett, Georgia has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is KILLIAN HILL ROAD inspected?
KILLIAN HILL ROAD'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 18,700 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. KILLIAN HILL ROAD 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 KILLIAN HILL ROAD?
KILLIAN HILL ROAD has an NBI inventory load rating of 32.6 metric tons.
Who is responsible for maintaining KILLIAN HILL ROAD?
KILLIAN HILL ROAD is owned and maintained by City/Municipal Highway Agency.
How old is KILLIAN HILL ROAD and does age affect safety?
KILLIAN HILL ROAD was built in 1975, making it 51 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.