FHWA NBI 2024 Inspection record Public-domain dataset

LARSON LOOP RD

Carrying LARSON LOOP RD over BOX ELDER CREEK

30 M S EKALAKA, Carter, Montana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
41 t Inventory load rating

Bridge Snapshot: LARSON LOOP RD

The LARSON LOOP RD bridge in Carter, Montana carries LARSON LOOP RD over BOX ELDER CREEK. It was built in 2019, making it 7 years old today. The structure is built primarily of steel and spans 2 sections, stretching 46.1 meters (151 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Montana bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 40.8 metric tons.

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

How LARSON LOOP RD compares

▲ 10.1
Load rating vs Montana average (30.7 t)
Top 11%
Higher load rating than 89% of Montana bridges
39
Bridges in Carter · 2 in Poor condition
LARSON LOOP RD 40.8 t
Montana average 30.7 t

Live comparison across Montana.

Historical Sufficiency Rating

PlainBridge-computed
91.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
24.8
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
40.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2019
Material
Steel
Number of Spans
2
Structure Length
46.1 m (151 ft)
Deck Width
7.6 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
000000202002429

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
  • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether LARSON LOOP 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 LARSON LOOP RD against other structures in Carter and across Montana. Montana 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 LARSON LOOP RD?

LARSON LOOP RD in Carter, Montana has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is LARSON LOOP RD inspected?

LARSON LOOP 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. LARSON LOOP RD 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 LARSON LOOP RD?

LARSON LOOP RD has an NBI inventory load rating of 40.8 metric tons.

Who is responsible for maintaining LARSON LOOP RD?

LARSON LOOP RD is owned and maintained by County Highway Agency.

How old is LARSON LOOP RD and does age affect safety?

LARSON LOOP RD was built in 2019, making it 7 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.