FHWA NBI 2024 Inspection record Public-domain dataset

WALNUT AVENUE WBND

Carrying WALNUT AVENUE WBND over PETERS CANYON CHANNEL

0.1 MI W HARVARD AVE, Orange, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating

Bridge Snapshot: WALNUT AVENUE WBND

The WALNUT AVENUE WBND bridge in Orange, California carries WALNUT AVENUE WBND over PETERS CANYON CHANNEL. It was built in 1980, making it 46 years old today. It was last reconstructed in 2000, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 32.3 meters (106 feet) end to end. Daily traffic averages 10,800 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by City/Municipal 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 32.4 metric tons.

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

How WALNUT AVENUE WBND compares

▲ 1.1
Load rating vs California average (31.3 t)
Bottom 41%
Lower load rating than 59% of California bridges
1,224
Bridges in Orange · 27 in Poor condition
WALNUT AVENUE WBND 32.4 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
76.7 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
10.0
Essentiality /15
13.7
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 How the historical reference is calculated.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
32.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1980
Last Reconstructed
2000
Material
Concrete Continuous
Number of Spans
2
Structure Length
32.3 m (106 ft)
Deck Width
16.4 m (54 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
10,800 vehicles/day
Structure Number
55C0439L

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 WALNUT AVENUE WBND 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 WALNUT AVENUE WBND against other structures in Orange 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 WALNUT AVENUE WBND?

WALNUT AVENUE WBND in Orange, California 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 WALNUT AVENUE WBND inspected?

WALNUT AVENUE WBND'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 10,800 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. WALNUT AVENUE WBND 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 WALNUT AVENUE WBND?

WALNUT AVENUE WBND has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining WALNUT AVENUE WBND?

WALNUT AVENUE WBND is owned and maintained by City/Municipal Highway Agency.

How old is WALNUT AVENUE WBND and does age affect safety?

WALNUT AVENUE WBND was built in 1980, making it 46 years old and last reconstructed in 2000.

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.