FHWA NBI 2024 Inspection record Public-domain dataset

US 93

Carrying US 93 over 'U' CANAL

12.5 N. TWIN FALLS, Jerome, Idaho

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
34 t Inventory load rating

Bridge Snapshot: US 93

The US 93 bridge in Jerome, Idaho carries US 93 over 'U' CANAL. It was built in 1984, making it 42 years old today. The structure is built primarily of prestressed concrete continuous and spans 3 sections, stretching 49.4 meters (162 feet) end to end. Daily traffic averages 6,500 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 a deck rating of 6/9, superstructure at 8/9, substructure at 7/9. 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 33.6 metric tons.

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

How US 93 compares

▲ 2.3
Load rating vs Idaho average (31.3 t)
Top 35%
Higher load rating than 65% of Idaho bridges
26
Bridges in Jerome · 3 in Poor condition
US 93 33.6 t
Idaho average 31.3 t

Live comparison across Idaho.

Historical Sufficiency Rating

PlainBridge-computed
98.4 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
14.4
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
8/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
33.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1984
Material
Prestressed Concrete Continuous
Number of Spans
3
Structure Length
49.4 m (162 ft)
Deck Width
12.7 m (42 ft)
Owner
State Highway Agency
Avg Daily Traffic
6,500 vehicles/day
Structure Number
000000000017605

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether US 93 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 93 against other structures in Jerome 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 93?

US 93 in Jerome, Idaho has a deck rating of 6/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is US 93 inspected?

US 93'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 6,500 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 93 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 93?

US 93 has an NBI inventory load rating of 33.6 metric tons.

Who is responsible for maintaining US 93?

US 93 is owned and maintained by State Highway Agency.

How old is US 93 and does age affect safety?

US 93 was built in 1984, making it 42 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.