FHWA NBI 2024 Inspection record Public-domain dataset

S-46-1257

Carrying S-46-1257 over TURKEY CREEK

1.6 MI W YORK, York, South Carolina

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
17 t Inventory load rating

Bridge Snapshot: S-46-1257

The S-46-1257 bridge in York, South Carolina carries S-46-1257 over TURKEY CREEK. It was built in 1975, making it 51 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 13.7 meters (45 feet) end to end. Daily traffic averages 325 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 7/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 16.8 metric tons.

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

How S-46-1257 compares

▼ 13.0
Load rating vs South Carolina average (29.8 t)
Bottom 13%
Lower load rating than 87% of South Carolina bridges
167
Bridges in York · 11 in Poor condition
S-46-1257 16.8 t
South Carolina average 29.8 t

Live comparison across South Carolina.

Historical Sufficiency Rating

PlainBridge-computed
47.0 / 100 - historical 20–49.9 band
Structural adequacy /55
10.0
Serviceability /30
22.0
Essentiality /15
15.0
Special reductions
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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
16.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1975
Material
Concrete
Number of Spans
3
Structure Length
13.7 m (45 ft)
Deck Width
8.4 m (28 ft)
Owner
State Highway Agency
Avg Daily Traffic
325 vehicles/day
Structure Number
000000000006829

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.

How to read this record

S-46-1257 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare S-46-1257 against other structures in York 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-46-1257?

S-46-1257 in York, South Carolina has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is S-46-1257 inspected?

S-46-1257'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 325 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. S-46-1257 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for S-46-1257?

S-46-1257 has an NBI inventory load rating of 16.8 metric tons.

Who is responsible for maintaining S-46-1257?

S-46-1257 is owned and maintained by State Highway Agency.

How old is S-46-1257 and does age affect safety?

S-46-1257 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.

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.