FHWA NBI 2024 Inspection record Public-domain dataset

S-23-451

Carrying S-23-451 over TRIB TO PAYNE BRANCH

4 MI SW OF FOUNTAIN INN, Greenville, South Carolina

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
40 t Inventory load rating

Bridge Snapshot: S-23-451

The S-23-451 bridge in Greenville, South Carolina carries S-23-451 over TRIB TO PAYNE BRANCH. It was built in 1994, making it 32 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 900 vehicles, placing it in the lower-traffic tier of South Carolina bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 39.5 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How S-23-451 compares

▲ 9.7
Load rating vs South Carolina average (29.8 t)
Top 22%
Higher load rating than 78% of South Carolina bridges
373
Bridges in Greenville · 24 in Poor condition
S-23-451 39.5 t
South Carolina average 29.8 t

Live comparison across South Carolina.

Historical Sufficiency Rating

PlainBridge-computed
96.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.9
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
39.5 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1994
Material
Prestressed Concrete
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
11.8 m (39 ft)
Owner
State Highway Agency
Avg Daily Traffic
900 vehicles/day
Structure Number
000000000008747

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether S-23-451 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 S-23-451 against other structures in Greenville and across South Carolina. South Carolina 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 S-23-451?

S-23-451 in Greenville, South Carolina has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is S-23-451 inspected?

S-23-451'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 900 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. S-23-451 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 S-23-451?

S-23-451 has an NBI inventory load rating of 39.5 metric tons.

Who is responsible for maintaining S-23-451?

S-23-451 is owned and maintained by State Highway Agency.

How old is S-23-451 and does age affect safety?

S-23-451 was built in 1994, making it 32 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.