I 225 ML
I 225 ML in In Aurora, Arapahoe County, Colorado received a condition grade of A (81/100). Built in 1988, the bridge carries 140K vehicles daily on I 225 ML over US 40 Ml.
I 225 ML carries an A on the BridgeSafety Condition Score with 81/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 1988, making it 38 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. I 225 ML carries an average daily traffic count of 140,000 vehicles, with 7 lane(s) crossing US 40 Ml. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I 225 ML is a 38-year-old bridge located In Aurora in Arapahoe County, Colorado. The bridge carries I 225 ML over US 40 Ml with 7 traffic lanes, handling approximately 140K vehicles per day. Built in 1988, the structure spans 70.1 meters.
The bridge received a Condition Grade of A (81/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 225 ML has a Condition Score of 81/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 225 ML was built in 1988, making it 38 years old. The average bridge age in the United States is 48 years.
I 225 ML carries approximately 140K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 70.1 meters long and located on I 225 ML in In Aurora, Arapahoe County, Colorado.
No, I 225 ML is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I 225 ML is located In Aurora in Arapahoe County, Colorado. The bridge carries I 225 ML over US 40 Ml. Its coordinates are 39.739853, -104.825128. It is maintained by State Highway Agency.
I 225 ML carries I 225 ML over US 40 Ml. The bridge is 70.1 meters long and was built in 1988.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.