40TH AVE N
Carrying 40TH AVE N over RED RIVER OF THE NORTH
COUNTY ROAD 20 IN FARGO, Cass, North Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 40TH AVE N
The 40TH AVE N bridge in Cass, North Dakota carries 40TH AVE N over RED RIVER OF THE NORTH. It was built in 2006, making it 20 years old today. The structure is built primarily of steel and spans 12 sections, stretching 290.8 meters (954 feet) end to end. Daily traffic averages 5,381 vehicles, placing it in the moderately-trafficked tier of North Dakota bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure 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 49.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 40TH AVE N 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 How the historical reference is calculated.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
- 2006
- Material
- Steel
- Number of Spans
- 12
- Structure Length
- 290.8 m (954 ft)
- Deck Width
- 15.8 m (52 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 5,381 vehicles/day
- Structure Number
- 0000FRGO29
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether 40TH AVE N 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 40TH AVE N against other structures in Cass 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 40TH AVE N?
40TH AVE N in Cass, North Dakota has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is 40TH AVE N inspected?
40TH AVE N'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 5,381 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 40TH AVE N 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 40TH AVE N?
40TH AVE N has an NBI inventory load rating of 49.4 metric tons.
Who is responsible for maintaining 40TH AVE N?
40TH AVE N is owned and maintained by City/Municipal Highway Agency.
How old is 40TH AVE N and does age affect safety?
40TH AVE N was built in 2006, making it 20 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.