FHWA NBI 2024 Inspection record Public-domain dataset

COBURN ROAD

Carrying COBURN ROAD over CEDAR CREEK

0.25 MI W OF MCKEOWN ROAD, Barry, Michigan

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
14 t Inventory load rating

Bridge Snapshot: COBURN ROAD

The COBURN ROAD bridge in Barry, Michigan carries COBURN ROAD over CEDAR CREEK. It was built in 1970, making it 56 years old today. The structure is built primarily of steel and spans 3 sections, stretching 7.7 meters (25 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Michigan bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 13.6 metric tons.

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

How COBURN ROAD compares

▼ 28.1
Load rating vs Michigan average (41.7 t)
Bottom 4%
Lower load rating than 96% of Michigan bridges
10
Bridges in Barry · 7 in Poor condition
COBURN ROAD 13.6 t
Michigan average 41.7 t

Live comparison across Michigan.

Historical Sufficiency Rating

PlainBridge-computed
46.4 / 100 - historical 20–49.9 band
Structural adequacy /55
3.5
Serviceability /30
28.0
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Inventory Load Rating
13.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1970
Material
Steel
Number of Spans
3
Structure Length
7.7 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
000000000014013

How to read this record

COBURN ROAD is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare COBURN ROAD against other structures in Barry and across Michigan. Michigan 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 COBURN ROAD?

COBURN ROAD in Barry, Michigan on the FHWA's 0–9 scale.

How often is COBURN ROAD inspected?

COBURN ROAD'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 100 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. COBURN ROAD is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for COBURN ROAD?

COBURN ROAD has an NBI inventory load rating of 13.6 metric tons.

Who is responsible for maintaining COBURN ROAD?

COBURN ROAD is owned and maintained by County Highway Agency.

How old is COBURN ROAD and does age affect safety?

COBURN ROAD was built in 1970, making it 56 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.