FHWA NBI 2024 Inspection record Public-domain dataset

M 980

Carrying M 980 over BLACKDOG CREEK

0.1 MI W OF TH 77, Dakota, Minnesota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
14 t Inventory load rating

Bridge Snapshot: M 980

The M 980 bridge in Dakota, Minnesota carries M 980 over BLACKDOG CREEK. It was built in 1953, making it 73 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 872 vehicles, placing it in the lower-traffic tier of Minnesota bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 13.9 metric tons.

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

How M 980 compares

▼ 21.8
Load rating vs Minnesota average (35.7 t)
Bottom 2%
Lower load rating than 98% of Minnesota bridges
152
Bridges in Dakota · 1 in Poor condition
M 980 13.9 t
Minnesota average 35.7 t

Live comparison across Minnesota.

Historical Sufficiency Rating

PlainBridge-computed
52.8 / 100 - historical 50–79.9 band
Structural adequacy /55
29.1
Serviceability /30
9.0
Essentiality /15
14.7
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
13.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1953
Material
Concrete
Number of Spans
1
Structure Length
7.9 m (26 ft)
Deck Width
7.3 m (24 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
872 vehicles/day
Structure Number
L5773

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether M 980 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 M 980 against other structures in Dakota 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 M 980?

M 980 in Dakota, Minnesota has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is M 980 inspected?

M 980'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 872 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. M 980 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 M 980?

M 980 has an NBI inventory load rating of 13.9 metric tons.

Who is responsible for maintaining M 980?

M 980 is owned and maintained by City/Municipal Highway Agency.

How old is M 980 and does age affect safety?

M 980 was built in 1953, making it 73 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.