ND HIGHWAY 40
Carrying ND HIGHWAY 40 over BNRR SEP OVERHEAD
4 NORTH US 2, Williams, North Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ND HIGHWAY 40
The ND HIGHWAY 40 bridge in Williams, North Dakota carries ND HIGHWAY 40 over BNRR SEP OVERHEAD. It was built in 1988, making it 38 years old today. The structure is built primarily of prestressed concrete continuous and spans 3 sections, stretching 57.3 meters (188 feet) end to end. Daily traffic averages 1,620 vehicles, placing it in the moderately-trafficked tier of North Dakota bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 55.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ND HIGHWAY 40 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 How the historical reference is calculated.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
- 1988
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 57.3 m (188 ft)
- Deck Width
- 13.0 m (43 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,620 vehicles/day
- Structure Number
- 0040003602
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • 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) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
ND HIGHWAY 40 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 ND HIGHWAY 40 against other structures in Williams 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 ND HIGHWAY 40?
ND HIGHWAY 40 in Williams, North Dakota has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is ND HIGHWAY 40 inspected?
ND HIGHWAY 40'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 1,620 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ND HIGHWAY 40 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 ND HIGHWAY 40?
ND HIGHWAY 40 has an NBI inventory load rating of 55.9 metric tons.
Who is responsible for maintaining ND HIGHWAY 40?
ND HIGHWAY 40 is owned and maintained by State Highway Agency.
How old is ND HIGHWAY 40 and does age affect safety?
ND HIGHWAY 40 was built in 1988, making it 38 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.