FHWA NBI 2024 Inspection record Public-domain dataset

SC 20

Carrying SC 20 over CORNER CREEK

15.7MI NW ABBEV, Abbeville, South Carolina

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
34 t Inventory load rating

Bridge Snapshot: SC 20

The SC 20 bridge in Abbeville, South Carolina carries SC 20 over CORNER CREEK. It was built in 1949, making it 77 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 800 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 culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 34.0 metric tons.

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

How SC 20 compares

▲ 4.2
Load rating vs South Carolina average (29.8 t)
Top 35%
Higher load rating than 65% of South Carolina bridges
96
Bridges in Abbeville · 4 in Poor condition
SC 20 34.0 t
South Carolina average 29.8 t

Live comparison across South Carolina.

Historical Sufficiency Rating

PlainBridge-computed
95.3 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
27.5
Essentiality /15
14.8
Special reductions
−2.0

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 How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
34.0 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1949
Material
Concrete
Number of Spans
3
Structure Length
10.4 m (34 ft)
Deck Width
11.0 m (36 ft)
Owner
State Highway Agency
Avg Daily Traffic
800 vehicles/day
Structure Number
000000000001588

How to read this record

This page shows what the last federal inspection recorded, not whether SC 20 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 SC 20 against other structures in Abbeville 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 SC 20?

SC 20 in Abbeville, South Carolina on the FHWA's 0–9 scale.

How often is SC 20 inspected?

SC 20'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 800 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SC 20 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 SC 20?

SC 20 has an NBI inventory load rating of 34.0 metric tons.

Who is responsible for maintaining SC 20?

SC 20 is owned and maintained by State Highway Agency.

How old is SC 20 and does age affect safety?

SC 20 was built in 1949, making it 77 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.