FHWA NBI 2024 Inspection record Public-domain dataset

S-1378

Carrying S-1378 over RR CSXT & RR PR

1.21 MI SE NORTH CHAR, Charleston, South Carolina

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
26 t Inventory load rating

Bridge Snapshot: S-1378

The S-1378 bridge in Charleston, South Carolina carries S-1378 over RR CSXT & RR PR. It was built in 2021, making it 5 years old today. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 202.1 meters (663 feet) end to end. Daily traffic averages 250 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 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 25.9 metric tons.

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

How S-1378 compares

▼ 3.9
Load rating vs South Carolina average (29.8 t)
Bottom 41%
Lower load rating than 59% of South Carolina bridges
196
Bridges in Charleston · 6 in Poor condition
S-1378 25.9 t
South Carolina average 29.8 t

Live comparison across South Carolina.

Historical Sufficiency Rating

PlainBridge-computed
92.5 / 100 - historical 80–100 band
Structural adequacy /55
49.6
Serviceability /30
28.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
25.9 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2021
Material
Prestressed Concrete Continuous
Number of Spans
2
Structure Length
202.1 m (663 ft)
Deck Width
26.6 m (87 ft)
Owner
State Highway Agency
Avg Daily Traffic
250 vehicles/day
Structure Number
000000000010610

Condition Analysis

  • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • 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-1378 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-1378 against other structures in Charleston 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-1378?

S-1378 in Charleston, South Carolina has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is S-1378 inspected?

S-1378'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 250 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. S-1378 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-1378?

S-1378 has an NBI inventory load rating of 25.9 metric tons.

Who is responsible for maintaining S-1378?

S-1378 is owned and maintained by State Highway Agency.

How old is S-1378 and does age affect safety?

S-1378 was built in 2021, making it 5 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.