FHWA NBI 2024 Inspection record Public-domain dataset

NELSON PIT RD

Carrying NELSON PIT RD over EAST HIGHLINE CANAL

1.2 MI E/O MILLER RD, Imperial, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
21 t Inventory load rating

Bridge Snapshot: NELSON PIT RD

The NELSON PIT RD bridge in Imperial, California carries NELSON PIT RD over EAST HIGHLINE CANAL. It was built in 1950, making it 76 years old today. The structure is built primarily of wood or timber and spans 8 sections, stretching 36.6 meters (120 feet) end to end. Daily traffic averages 100 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 7/9, 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 20.7 metric tons.

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

How NELSON PIT RD compares

▼ 10.6
Load rating vs California average (31.3 t)
Bottom 14%
Lower load rating than 86% of California bridges
448
Bridges in Imperial · 39 in Poor condition
NELSON PIT RD 20.7 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
66.4 / 100 - historical 50–79.9 band
Structural adequacy /55
32.0
Serviceability /30
22.5
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
20.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1950
Material
Wood or Timber
Number of Spans
8
Structure Length
36.6 m (120 ft)
Deck Width
5.6 m (18 ft)
Owner
County Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
58C0121

Condition Analysis

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

How to read this record

This page shows what the last federal inspection recorded, not whether NELSON PIT RD 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 NELSON PIT RD against other structures in Imperial 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 NELSON PIT RD?

NELSON PIT RD in Imperial, California has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is NELSON PIT RD inspected?

NELSON PIT RD'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 100 vehicles per day.

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

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

NELSON PIT RD has an NBI inventory load rating of 20.7 metric tons.

Who is responsible for maintaining NELSON PIT RD?

NELSON PIT RD is owned and maintained by County Highway Agency.

How old is NELSON PIT RD and does age affect safety?

NELSON PIT RD was built in 1950, making it 76 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.