FHWA NBI 2024 Inspection record Public-domain dataset

US 20 EBL & WBL

Carrying US 20 EBL & WBL over SALEM UNION CANAL

1.2 E. ST ANTHONY, Fremont, Idaho

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: US 20 EBL & WBL

The US 20 EBL & WBL bridge in Fremont, Idaho carries US 20 EBL & WBL over SALEM UNION CANAL. It was built in 1979, making it 47 years old today. The structure is built primarily of steel and spans 1 section, stretching 11.6 meters (38 feet) end to end. Daily traffic averages 9,000 vehicles, placing it in the moderately-trafficked tier of Idaho bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 6/9. 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 32.7 metric tons.

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

How US 20 EBL & WBL compares

▲ 1.4
Load rating vs Idaho average (31.3 t)
Top 39%
Higher load rating than 61% of Idaho bridges
46
Bridges in Fremont · 3 in Poor condition
US 20 EBL & WBL 32.7 t
Idaho average 31.3 t

Live comparison across Idaho.

Historical Sufficiency Rating

PlainBridge-computed
84.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
15.0
Essentiality /15
14.0
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1979
Material
Steel
Number of Spans
1
Structure Length
11.6 m (38 ft)
Deck Width
53.8 m (177 ft)
Owner
State Highway Agency
Avg Daily Traffic
9,000 vehicles/day
Structure Number
000000000012615

How to read this record

This page shows what the last federal inspection recorded, not whether US 20 EBL & WBL 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 US 20 EBL & WBL against other structures in Fremont and across Idaho. Idaho 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 US 20 EBL & WBL?

US 20 EBL & WBL in Fremont, Idaho on the FHWA's 0–9 scale.

How often is US 20 EBL & WBL inspected?

US 20 EBL & WBL'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 9,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 20 EBL & WBL 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 US 20 EBL & WBL?

US 20 EBL & WBL has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining US 20 EBL & WBL?

US 20 EBL & WBL is owned and maintained by State Highway Agency.

How old is US 20 EBL & WBL and does age affect safety?

US 20 EBL & WBL was built in 1979, making it 47 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.