81ST STREET NORTH
Carrying 81ST STREET NORTH over OUTLET CHANNEL OF MARSH
SE 1/4 SEC 15 T159N R77W, McHenry, North Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 81ST STREET NORTH
The 81ST STREET NORTH bridge in McHenry, North Dakota carries 81ST STREET NORTH over OUTLET CHANNEL OF MARSH. It was built in 2010, making it 16 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.0 meters (23 feet) end to end. Daily traffic averages 40 vehicles, placing it in the lower-traffic tier of North Dakota bridges. It is owned and maintained by Bureau of Fish and Wildlife.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 81ST STREET NORTH compares
Live comparison across North Dakota.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 2010
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 7.0 m (23 ft)
- Deck Width
- 17.2 m (56 ft)
- Owner
- Bureau of Fish and Wildlife
- Avg Daily Traffic
- 40 vehicles/day
- Structure Number
- 000062620-58577
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether 81ST STREET NORTH 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 81ST STREET NORTH against other structures in McHenry and across North Dakota. North Dakota 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 81ST STREET NORTH?
81ST STREET NORTH in McHenry, North Dakota on the FHWA's 0–9 scale.
How often is 81ST STREET NORTH inspected?
81ST STREET NORTH'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 40 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 81ST STREET NORTH 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 81ST STREET NORTH?
81ST STREET NORTH has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining 81ST STREET NORTH?
81ST STREET NORTH is owned and maintained by Bureau of Fish and Wildlife.
How old is 81ST STREET NORTH and does age affect safety?
81ST STREET NORTH was built in 2010, making it 16 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.
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.