ROCKBRIDGE ROAD
Carrying ROCKBRIDGE ROAD over I-285 (SR 407)
2.8 MI S OF CLARKSTON, DeKalb, Georgia
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
ROCKBRIDGE ROAD in DeKalb, Georgia sits above 22% of rated Georgia bridges on inventory load rating (24 t), while its 1966 build year is earlier than 53% of DeKalb's recorded-year cohort (392 bridges).
ROCKBRIDGE ROAD in DeKalb, Georgia is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1966, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure GA:000000008901180
INTERSTATE-ERA · STEEL · LONG-SPAN-RUN · DECK-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- LONG-SPAN-RUN 4 spans
- DECK-LED Deck-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Structural health score
A composite of the deck, superstructure, and substructure NBI condition ratings plus the inventory load rating, benchmarked against the full national bridge corpus, distinct from the Good/Fair/Poor category above.
Bridge Snapshot: ROCKBRIDGE ROAD
The ROCKBRIDGE ROAD bridge in DeKalb, Georgia carries ROCKBRIDGE ROAD over I-285 (SR 407). It was built in 1966, making it 60 years old today. The structure is built primarily of steel and spans 4 sections, stretching 82.9 meters (272 feet) end to end. Daily traffic averages 1,650 vehicles, placing it in the moderately-trafficked tier of Georgia bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection places the weakest component in fair condition (see the full component ratings below). All reported major components score above the Poor range.
How ROCKBRIDGE ROAD compares
Age against the county: built in 1966, earlier than 208 of DeKalb's 392 bridges with a recorded construction year (53%), against a county median build year of 1967. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Georgia bridges with a recorded inventory load rating (15,056 of 15,069 rated).
ROCKBRIDGE ROAD vs every rated Georgia bridge
Inventory load rating (metric tons), FHWA NBI, this state
24 Top 78% higher than 22% of 15,056 bridges
rated Georgia bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
DeKalb inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 392 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1966
- Material
- Steel
- Number of Spans
- 4
- Structure Length
- 82.9 m (272 ft)
- Deck Width
- 10.9 m (36 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,650 vehicles/day
- Structure Number
- 000000008901180
Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • 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.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether ROCKBRIDGE 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 ROCKBRIDGE ROAD against other structures in DeKalb 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 ROCKBRIDGE ROAD?
ROCKBRIDGE ROAD in DeKalb, 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 ROCKBRIDGE ROAD inspected?
ROCKBRIDGE 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 1,650 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ROCKBRIDGE 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 ROCKBRIDGE ROAD?
ROCKBRIDGE ROAD has an NBI inventory load rating of 23.5 metric tons.
Who is responsible for maintaining ROCKBRIDGE ROAD?
ROCKBRIDGE ROAD is owned and maintained by State Highway Agency.
How old is ROCKBRIDGE ROAD and does age affect safety?
ROCKBRIDGE ROAD was built in 1966, making it 60 years old.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.