FHWA NBI 2024 Inspection record Public-domain dataset

OR 99E (Hwy 58) NB

Carrying OR 99E (Hwy 58) NB over Periwinkle Creek

0.1 MI W GEARY ST, Linn, Oregon

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
17 t Inventory load rating

Bridge Snapshot: OR 99E (Hwy 58) NB

The OR 99E (Hwy 58) NB bridge in Linn, Oregon carries OR 99E (Hwy 58) NB over Periwinkle Creek. It was built in 1978, making it 48 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 13.4 meters (44 feet) end to end. Daily traffic averages 16,154 vehicles, placing it in the heavily-trafficked tier of Oregon bridges. It is owned and maintained by State 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. All reported major components score above the Poor range. Its NBI inventory load rating is 16.8 metric tons.

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

How OR 99E (Hwy 58) NB compares

▼ 15.5
Load rating vs Oregon average (32.3 t)
Bottom 11%
Lower load rating than 89% of Oregon bridges
567
Bridges in Linn · 100 in Poor condition
OR 99E (Hwy 58) NB 16.8 t
Oregon average 32.3 t

Live comparison across Oregon.

Historical Sufficiency Rating

PlainBridge-computed
58.3 / 100 - historical 50–79.9 band
Structural adequacy /55
35.0
Serviceability /30
25.3
Essentiality /15
0.0
Special reductions
−2.0

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 How the historical reference is calculated.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
16.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1978
Material
Prestressed Concrete
Number of Spans
1
Structure Length
13.4 m (44 ft)
Deck Width
18.5 m (61 ft)
Owner
State Highway Agency
Avg Daily Traffic
16,154 vehicles/day
Structure Number
18295 058 00156

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.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether OR 99E (Hwy 58) NB 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 OR 99E (Hwy 58) NB 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 OR 99E (Hwy 58) NB?

OR 99E (Hwy 58) NB in Linn, 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 OR 99E (Hwy 58) NB inspected?

OR 99E (Hwy 58) NB'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 16,154 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. OR 99E (Hwy 58) NB 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 OR 99E (Hwy 58) NB?

OR 99E (Hwy 58) NB has an NBI inventory load rating of 16.8 metric tons.

Who is responsible for maintaining OR 99E (Hwy 58) NB?

OR 99E (Hwy 58) NB is owned and maintained by State Highway Agency.

How old is OR 99E (Hwy 58) NB and does age affect safety?

OR 99E (Hwy 58) NB was built in 1978, making it 48 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.