FHWA NBI 2024 Inspection record Public-domain dataset

MAIN ST

Carrying MAIN ST over COTTONWOOD CREEK

DEER LODGE-MAIN ST, Powell, Montana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
37 t Inventory load rating

Bridge Snapshot: MAIN ST

The MAIN ST bridge in Powell, Montana carries MAIN ST over COTTONWOOD CREEK. It was built in 2014, making it 12 years old today. The structure is built primarily of concrete and spans 1 section, stretching 16.1 meters (53 feet) end to end. Daily traffic averages 4,979 vehicles, placing it in the moderately-trafficked tier of Montana bridges. It is owned and maintained by State 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 37.2 metric tons.

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

How MAIN ST compares

▲ 6.5
Load rating vs Montana average (30.7 t)
Top 17%
Higher load rating than 83% of Montana bridges
112
Bridges in Powell · 5 in Poor condition
MAIN ST 37.2 t
Montana average 30.7 t

Live comparison across Montana.

Historical Sufficiency Rating

PlainBridge-computed
98.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
13.8
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 How the historical reference is calculated.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
37.2 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2014
Material
Concrete
Number of Spans
1
Structure Length
16.1 m (53 ft)
Deck Width
32.9 m (108 ft)
Owner
State Highway Agency
Avg Daily Traffic
4,979 vehicles/day
Structure Number
S00275001+00951

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • 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 MAIN ST 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 MAIN ST against other structures in Powell 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 MAIN ST?

MAIN ST in Powell, 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 MAIN ST inspected?

MAIN ST'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 4,979 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MAIN ST 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 MAIN ST?

MAIN ST has an NBI inventory load rating of 37.2 metric tons.

Who is responsible for maintaining MAIN ST?

MAIN ST is owned and maintained by State Highway Agency.

How old is MAIN ST and does age affect safety?

MAIN ST was built in 2014, making it 12 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.