HWY 430
Carrying HWY 430 over COILA CREEK
SEC 4 T17N R 2E B, Carroll, Mississippi
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY 430
The HWY 430 bridge in Carroll, Mississippi carries HWY 430 over COILA CREEK. It was built in 1966, making it 60 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 54.9 meters (180 feet) end to end. Daily traffic averages 1,100 vehicles, placing it in the moderately-trafficked tier of Mississippi bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 21.1 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY 430 compares
Live comparison across Mississippi.
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 How the historical reference is calculated.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
- 1966
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 54.9 m (180 ft)
- Deck Width
- 8.8 m (29 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 1,100 vehicles/day
- Structure Number
- SA0800000000011
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
This page shows what the last federal inspection recorded, not whether HWY 430 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 HWY 430 against other structures in Carroll and across Mississippi. Mississippi 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 HWY 430?
HWY 430 in Carroll, Mississippi has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is HWY 430 inspected?
HWY 430'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 1,100 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY 430 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 HWY 430?
HWY 430 has an NBI inventory load rating of 21.1 metric tons.
Who is responsible for maintaining HWY 430?
HWY 430 is owned and maintained by County Highway Agency.
How old is HWY 430 and does age affect safety?
HWY 430 was built in 1966, making it 60 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.