FHWA NBI 2024 Inspection record Public-domain dataset

20 S 11 W 36.00:

Carrying 20 S 11 W 36.00: over SPENCER CREEK

20.5 miles NE of Hwy 101, Douglas, Oregon

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
41 t Inventory load rating

Bridge Snapshot: 20 S 11 W 36.00:

The 20 S 11 W 36.00: bridge in Douglas, Oregon carries 20 S 11 W 36.00: over SPENCER CREEK. It was built in 1953, making it 73 years old today. The structure is built primarily of concrete continuous and spans 5 sections, stretching 48.8 meters (160 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by Bureau of Land Management.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 40.5 metric tons.

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

How 20 S 11 W 36.00: compares

▲ 8.2
Load rating vs Oregon average (32.3 t)
Top 26%
Higher load rating than 74% of Oregon bridges
699
Bridges in Douglas · 22 in Poor condition
20 S 11 W 36.00: 40.5 t
Oregon average 32.3 t

Live comparison across Oregon.

Historical Sufficiency Rating

PlainBridge-computed
86.0 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
29.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
40.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1953
Material
Concrete Continuous
Number of Spans
5
Structure Length
48.8 m (160 ft)
Deck Width
9.3 m (31 ft)
Owner
Bureau of Land Management
Avg Daily Traffic
50 vehicles/day
Structure Number
0000000L1439046

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether 20 S 11 W 36.00: 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 20 S 11 W 36.00: against other structures in Douglas 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 20 S 11 W 36.00:?

20 S 11 W 36.00: in Douglas, Oregon has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is 20 S 11 W 36.00: inspected?

20 S 11 W 36.00:'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 20 S 11 W 36.00: is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for 20 S 11 W 36.00:?

20 S 11 W 36.00: has an NBI inventory load rating of 40.5 metric tons.

Who is responsible for maintaining 20 S 11 W 36.00:?

20 S 11 W 36.00: is owned and maintained by Bureau of Land Management.

How old is 20 S 11 W 36.00: and does age affect safety?

20 S 11 W 36.00: was built in 1953, making it 73 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.