FHWA NBI 2024 Inspection record Public-domain dataset

US 301

Carrying US 301 over COOPER SWAMP

9MI N OF COPE, Orangeburg, South Carolina

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating

Bridge Snapshot: US 301

The US 301 bridge in Orangeburg, South Carolina carries US 301 over COOPER SWAMP. It was built in 1971, making it 55 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 7.8 meters (26 feet) end to end. Daily traffic averages 3,300 vehicles, placing it in the moderately-trafficked tier of South Carolina bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.4 metric tons.

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

How US 301 compares

▲ 2.6
Load rating vs South Carolina average (29.8 t)
Top 40%
Higher load rating than 60% of South Carolina bridges
160
Bridges in Orangeburg · 11 in Poor condition
US 301 32.4 t
South Carolina average 29.8 t

Live comparison across South Carolina.

Historical Sufficiency Rating

PlainBridge-computed
80.6 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
11.0
Essentiality /15
14.6
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
32.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1971
Material
Concrete
Number of Spans
3
Structure Length
7.8 m (26 ft)
Deck Width
16.5 m (54 ft)
Owner
State Highway Agency
Avg Daily Traffic
3,300 vehicles/day
Structure Number
000000000005999

How to read this record

This page shows what the last federal inspection recorded, not whether US 301 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 US 301 against other structures in Orangeburg 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 US 301?

US 301 in Orangeburg, South Carolina on the FHWA's 0–9 scale.

How often is US 301 inspected?

US 301'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 3,300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 301 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 US 301?

US 301 has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining US 301?

US 301 is owned and maintained by State Highway Agency.

How old is US 301 and does age affect safety?

US 301 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.

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.