FHWA NBI 2024 Inspection record Public-domain dataset

RD 284

Carrying RD 284 over TULE RIVER

0.1 MI N OF SR 190, Tulare, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
35 t Inventory load rating

Bridge Snapshot: RD 284

The RD 284 bridge in Tulare, California carries RD 284 over TULE RIVER. It was built in 1963, making it 63 years old today. The structure is built primarily of concrete continuous and spans 4 sections, stretching 39.0 meters (128 feet) end to end. Daily traffic averages 1,500 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 7/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 35.3 metric tons.

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

How RD 284 compares

▲ 4.0
Load rating vs California average (31.3 t)
Top 20%
Higher load rating than 80% of California bridges
599
Bridges in Tulare · 19 in Poor condition
RD 284 35.3 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
64.5 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
24.0
Essentiality /15
13.5
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
35.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1963
Material
Concrete Continuous
Number of Spans
4
Structure Length
39.0 m (128 ft)
Deck Width
12.2 m (40 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,500 vehicles/day
Structure Number
46C0419

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

RD 284 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 RD 284 against other structures in Tulare 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 RD 284?

RD 284 in Tulare, California has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is RD 284 inspected?

RD 284'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 1,500 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RD 284 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 RD 284?

RD 284 has an NBI inventory load rating of 35.3 metric tons.

Who is responsible for maintaining RD 284?

RD 284 is owned and maintained by County Highway Agency.

How old is RD 284 and does age affect safety?

RD 284 was built in 1963, making it 63 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.