FHWA NBI 2024 Inspection record Public-domain dataset

SLOAT-POPLAR VLY R

Carrying SLOAT-POPLAR VLY R over MIDDLE FORK FEATHER RIV

AT SLOAT RD, Plumas, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
17 t Inventory load rating

Bridge Snapshot: SLOAT-POPLAR VLY R

The SLOAT-POPLAR VLY R bridge in Plumas, California carries SLOAT-POPLAR VLY R over MIDDLE FORK FEATHER RIV. It was built in 1959, making it 67 years old today. The structure is built primarily of steel and spans 2 sections, stretching 75.6 meters (248 feet) end to end. Daily traffic averages 140 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair 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 SLOAT-POPLAR VLY R compares

▼ 14.5
Load rating vs California average (31.3 t)
Bottom 8%
Lower load rating than 92% of California bridges
170
Bridges in Plumas · 7 in Poor condition
SLOAT-POPLAR VLY R 16.8 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
45.7 / 100 - historical 20–49.9 band
Structural adequacy /55
25.0
Serviceability /30
9.0
Essentiality /15
11.7
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
16.8 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1959
Material
Steel
Number of Spans
2
Structure Length
75.6 m (248 ft)
Deck Width
6.9 m (23 ft)
Owner
County Highway Agency
Avg Daily Traffic
140 vehicles/day
Structure Number
09C0149

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether SLOAT-POPLAR VLY R 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 SLOAT-POPLAR VLY R against other structures in Plumas and across California. California 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 SLOAT-POPLAR VLY R?

SLOAT-POPLAR VLY R in Plumas, California has a deck rating of 5/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is SLOAT-POPLAR VLY R inspected?

SLOAT-POPLAR VLY R'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 140 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SLOAT-POPLAR VLY R 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 SLOAT-POPLAR VLY R?

SLOAT-POPLAR VLY R has an NBI inventory load rating of 16.8 metric tons.

Who is responsible for maintaining SLOAT-POPLAR VLY R?

SLOAT-POPLAR VLY R is owned and maintained by County Highway Agency.

How old is SLOAT-POPLAR VLY R and does age affect safety?

SLOAT-POPLAR VLY R 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.