FHWA NBI 2024 Inspection record Public-domain dataset

BITTERROOT DR

Carrying BITTERROOT DR over FIVE MILE CREEK 119

N BILLINGS HEIGHTS, Yellowstone, Montana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
25 t Inventory load rating

Bridge Snapshot: BITTERROOT DR

The BITTERROOT DR bridge in Yellowstone, Montana carries BITTERROOT DR over FIVE MILE CREEK 119. It was built in 1999, making it 27 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 24.4 meters (80 feet) end to end. Daily traffic averages 1,563 vehicles, placing it in the moderately-trafficked tier of Montana 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 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 25.4 metric tons.

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

How BITTERROOT DR compares

▼ 5.3
Load rating vs Montana average (30.7 t)
Bottom 33%
Lower load rating than 67% of Montana bridges
283
Bridges in Yellowstone · 3 in Poor condition
BITTERROOT DR 25.4 t
Montana average 30.7 t

Live comparison across Montana.

Historical Sufficiency Rating

PlainBridge-computed
77.7 / 100 - historical 50–79.9 band
Structural adequacy /55
49.0
Serviceability /30
14.2
Essentiality /15
14.5
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
25.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1999
Material
Prestressed Concrete
Number of Spans
1
Structure Length
24.4 m (80 ft)
Deck Width
11.9 m (39 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,563 vehicles/day
Structure Number
L56730000+05001

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • 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 BITTERROOT DR 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 BITTERROOT DR against other structures in Yellowstone 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 BITTERROOT DR?

BITTERROOT DR in Yellowstone, Montana 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 BITTERROOT DR inspected?

BITTERROOT DR'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 1,563 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BITTERROOT DR 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 BITTERROOT DR?

BITTERROOT DR has an NBI inventory load rating of 25.4 metric tons.

Who is responsible for maintaining BITTERROOT DR?

BITTERROOT DR is owned and maintained by County Highway Agency.

How old is BITTERROOT DR and does age affect safety?

BITTERROOT DR was built in 1999, making it 27 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.