FHWA NBI 2024 Inspection record Public-domain dataset

T 398

Carrying T 398 over MARBLE CREEK

0.6 MI S OF JCT CSAH 25, Blue Earth, Minnesota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
36 t Inventory load rating

Bridge Snapshot: T 398

The T 398 bridge in Blue Earth, Minnesota carries T 398 over MARBLE CREEK. It was built in 1979, making it 47 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 13.9 meters (46 feet) end to end. Daily traffic averages 18 vehicles, placing it in the lower-traffic tier of Minnesota bridges. It is owned and maintained by Town/Township 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 35.9 metric tons.

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

How T 398 compares

▲ 0.2
Load rating vs Minnesota average (35.7 t)
Bottom 41%
Lower load rating than 59% of Minnesota bridges
178
Bridges in Blue Earth · 9 in Poor condition
T 398 35.9 t
Minnesota average 35.7 t

Live comparison across Minnesota.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
1979
Material
Concrete
Number of Spans
3
Structure Length
13.9 m (46 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
18 vehicles/day
Structure Number
91885

How to read this record

This page shows what the last federal inspection recorded, not whether T 398 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 T 398 against other structures in Blue Earth and across Minnesota. Minnesota 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 T 398?

T 398 in Blue Earth, Minnesota on the FHWA's 0–9 scale.

How often is T 398 inspected?

T 398'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 18 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. T 398 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 T 398?

T 398 has an NBI inventory load rating of 35.9 metric tons.

Who is responsible for maintaining T 398?

T 398 is owned and maintained by Town/Township Highway Agency.

How old is T 398 and does age affect safety?

T 398 was built in 1979, making it 47 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.