FHWA NBI 2024 Inspection record Public-domain dataset

LOCHNER RD

Carrying LOCHNER RD over OAK CR O'FLOW

012 MI S CR 349, Linn, Oregon

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
6 t Inventory load rating

Bridge Snapshot: LOCHNER RD

The LOCHNER RD bridge in Linn, Oregon carries LOCHNER RD over OAK CR O'FLOW. It was built in 1959, making it 67 years old today. The structure is built primarily of concrete and spans 6 sections, stretching 34.7 meters (114 feet) end to end. Daily traffic averages 360 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 6/9, substructure at 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 6.2 metric tons.

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

How LOCHNER RD compares

▼ 26.1
Load rating vs Oregon average (32.3 t)
Bottom 1%
Lower load rating than 99% of Oregon bridges
567
Bridges in Linn · 100 in Poor condition
LOCHNER RD 6.2 t
Oregon average 32.3 t

Live comparison across Oregon.

Historical Sufficiency Rating

PlainBridge-computed
23.7 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
9.0
Essentiality /15
14.7
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 How the historical reference is calculated.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

Deck
8/9
Good (7–9)
Superstructure
6/9
Fair (5–6)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
6.2 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1959
Material
Concrete
Number of Spans
6
Structure Length
34.7 m (114 ft)
Deck Width
7.7 m (25 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
360 vehicles/day
Structure Number
12411 034600117

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 3/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

LOCHNER RD 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 LOCHNER RD against other structures in Linn 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 LOCHNER RD?

LOCHNER RD in Linn, Oregon has a deck rating of 8/9, superstructure rating of 6/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is LOCHNER RD inspected?

LOCHNER RD'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 360 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LOCHNER RD 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 LOCHNER RD?

LOCHNER RD has an NBI inventory load rating of 6.2 metric tons.

Who is responsible for maintaining LOCHNER RD?

LOCHNER RD is owned and maintained by City/Municipal Highway Agency.

How old is LOCHNER RD and does age affect safety?

LOCHNER RD was built in 1959, making it 67 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.