FHWA NBI 2024 Inspection record Public-domain dataset

I 225 ML

Carrying I 225 ML over DRAW

IN AURORA, Adams, Colorado

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: I 225 ML

The I 225 ML bridge in Adams, Colorado carries I 225 ML over DRAW. It was built in 1964, making it 62 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 16.6 meters (54 feet) end to end. Daily traffic averages 121,000 vehicles, placing it in the heavily-trafficked tier of Colorado bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.9 metric tons.

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

How I 225 ML compares

▼ 12.2
Load rating vs Colorado average (37.1 t)
Bottom 20%
Lower load rating than 80% of Colorado bridges
535
Bridges in Adams · 33 in Poor condition
I 225 ML 24.9 t
Colorado average 37.1 t

Live comparison across Colorado.

Historical Sufficiency Rating

PlainBridge-computed
48.3 / 100 - historical 20–49.9 band
Structural adequacy /55
38.3
Serviceability /30
10.0
Essentiality /15
0.0
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Inventory Load Rating
24.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1964
Material
Concrete
Number of Spans
4
Structure Length
16.6 m (54 ft)
Deck Width
84.0 m (276 ft)
Owner
State Highway Agency
Avg Daily Traffic
121,000 vehicles/day
Structure Number
F-17-BF

How to read this record

This page shows what the last federal inspection recorded, not whether I 225 ML 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 I 225 ML against other structures in Adams and across Colorado. Colorado 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 I 225 ML?

I 225 ML in Adams, Colorado on the FHWA's 0–9 scale.

How often is I 225 ML inspected?

I 225 ML'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 121,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I 225 ML 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 I 225 ML?

I 225 ML has an NBI inventory load rating of 24.9 metric tons.

Who is responsible for maintaining I 225 ML?

I 225 ML is owned and maintained by State Highway Agency.

How old is I 225 ML and does age affect safety?

I 225 ML was built in 1964, making it 62 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.