FHWA NBI 2024 Inspection record Public-domain dataset

LAGOON DR B494

Carrying LAGOON DR B494 over WILLOW CREEK EB

1 W VALE CITY LAGOONS, Malheur, Oregon

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
23 t Inventory load rating

Bridge Snapshot: LAGOON DR B494

The LAGOON DR B494 bridge in Malheur, Oregon carries LAGOON DR B494 over WILLOW CREEK EB. It was built in 1974, making it 52 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 13.1 meters (43 feet) end to end. Daily traffic averages 771 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. 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 23.2 metric tons.

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

How LAGOON DR B494 compares

▼ 9.1
Load rating vs Oregon average (32.3 t)
Bottom 31%
Lower load rating than 69% of Oregon bridges
181
Bridges in Malheur · 5 in Poor condition
LAGOON DR B494 23.2 t
Oregon average 32.3 t

Live comparison across Oregon.

Historical Sufficiency Rating

PlainBridge-computed
86.5 / 100 - historical 80–100 band
Structural adequacy /55
45.9
Serviceability /30
28.7
Essentiality /15
14.8
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
23.2 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1974
Material
Prestressed Concrete
Number of Spans
1
Structure Length
13.1 m (43 ft)
Deck Width
9.8 m (32 ft)
Owner
County Highway Agency
Avg Daily Traffic
771 vehicles/day
Structure Number
15558 088000059

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) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether LAGOON DR B494 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 LAGOON DR B494 against other structures in Malheur and across Oregon. Oregon 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 LAGOON DR B494?

LAGOON DR B494 in Malheur, Oregon has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is LAGOON DR B494 inspected?

LAGOON DR B494'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 771 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LAGOON DR B494 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 LAGOON DR B494?

LAGOON DR B494 has an NBI inventory load rating of 23.2 metric tons.

Who is responsible for maintaining LAGOON DR B494?

LAGOON DR B494 is owned and maintained by County Highway Agency.

How old is LAGOON DR B494 and does age affect safety?

LAGOON DR B494 was built in 1974, making it 52 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.