I25 ML S
I25 ML S in 225/25 Tunnel, Denver County, Colorado received a condition grade of B (74/100). Built in 2004, the bridge carries 221K vehicles daily on I25 ML S over I225 Ramp.
I25 ML S carries a B on the BridgeSafety Condition Score with 74/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 2004 and is 22 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. I25 ML S carries an average daily traffic count of 221,000 vehicles, with 9 lane(s) crossing I225 Ramp. 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
I25 ML S is a 22-year-old bridge located 225/25 Tunnel in Denver County, Colorado. The bridge carries I25 ML S over I225 Ramp with 9 traffic lanes, handling approximately 221K vehicles per day. Built in 2004, the structure spans 34 meters.
The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I25 ML S has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I25 ML S was built in 2004, making it 22 years old. The average bridge age in the United States is 48 years.
I25 ML S carries approximately 221K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 34 meters long and located on I25 ML S in 225/25 Tunnel, Denver County, Colorado.
No, I25 ML S is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I25 ML S is located 225/25 Tunnel in Denver County, Colorado. The bridge carries I25 ML S over I225 Ramp. Its coordinates are 39.633317, -104.906197. It is maintained by State Highway Agency.
I25 ML S carries I25 ML S over I225 Ramp. The bridge is 34 meters long and was built in 2004.
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.