PERKERSON MILL ROA
Carrying PERKERSON MILL ROA over SWEETWATER CREEK
IN NORTH EAST AUSTELL, Cobb, Georgia
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
PERKERSON MILL ROA in Cobb, Georgia sits above 24% of rated Georgia bridges on inventory load rating (24 t), while its 1971 build year is earlier than 76% of Cobb's recorded-year cohort (414 bridges).
PERKERSON MILL ROA in Cobb, Georgia is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1971, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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:000000006751130
INTERSTATE-ERA · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · ARTERIAL-ADT · STANDARD-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- LONG-SPAN-RUN 5 spans
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: PERKERSON MILL ROA
The PERKERSON MILL ROA bridge in Cobb, Georgia carries PERKERSON MILL ROA over SWEETWATER CREEK. It was built in 1971, making it 55 years old today. The structure is built primarily of concrete and spans 5 sections, stretching 61.0 meters (200 feet) end to end. Daily traffic averages 3,520 vehicles, placing it in the moderately-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 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How PERKERSON MILL ROA compares
Age against the county: built in 1971, earlier than 313 of Cobb's 414 bridges with a recorded construction year (76%), against a county median build year of 1988. 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).
PERKERSON MILL ROA vs every rated Georgia bridge
Inventory load rating (metric tons), FHWA NBI, this state
24 Top 76% higher than 24% 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.
Cobb inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 414 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
- 1971
- Material
- Concrete
- Number of Spans
- 5
- Structure Length
- 61.0 m (200 ft)
- Deck Width
- 9.6 m (31 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 3,520 vehicles/day
- Structure Number
- 000000006751130
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
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 PERKERSON MILL ROA 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 PERKERSON MILL ROA against other structures in Cobb 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 PERKERSON MILL ROA?
PERKERSON MILL ROA in Cobb, Georgia 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 PERKERSON MILL ROA inspected?
PERKERSON MILL ROA'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 3,520 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. PERKERSON MILL ROA 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 PERKERSON MILL ROA?
PERKERSON MILL ROA has an NBI inventory load rating of 24.4 metric tons.
Who is responsible for maintaining PERKERSON MILL ROA?
PERKERSON MILL ROA is owned and maintained by City/Municipal Highway Agency.
How old is PERKERSON MILL ROA and does age affect safety?
PERKERSON MILL ROA was built in 1971, making it 55 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.
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.