I 25 ML
I 25 ML in Just N. Of 13th AVE, Denver County, Colorado received a condition grade of C (57/100). Built in 1956, the bridge carries 235K vehicles daily on I 25 ML over W. Myrtle PL. / RR.
I 25 ML carries a C on the BridgeSafety Condition Score with 57/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1956 and is now 70 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I 25 ML carries an average daily traffic count of 235,000 vehicles, with 13 lane(s) crossing W. Myrtle PL. / RR. 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 25 ML is a 70-year-old bridge located Just N. Of 13th AVE in Denver County, Colorado. The bridge carries I 25 ML over W. Myrtle PL. / RR with 13 traffic lanes, handling approximately 235K vehicles per day. Built in 1956 and reconstructed in 1991, the structure spans 42.4 meters.
The bridge received a Condition Grade of C (57/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 25 ML has a Condition Score of 57/100 (Grade C). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 25 ML was built in 1956 and reconstructed in 1991, making it 70 years old. The average bridge age in the United States is 48 years.
I 25 ML carries approximately 235K vehicles per day (average daily traffic). The bridge has 13 traffic lanes. It is 42.4 meters long and located on I 25 ML in Just N. Of 13th AVE, Denver County, Colorado.
No, I 25 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 25 ML is located Just N. Of 13th AVE in Denver County, Colorado. The bridge carries I 25 ML over W. Myrtle PL. / RR. Its coordinates are 39.737453, -105.013661. It is maintained by State Highway Agency.
I 25 ML carries I 25 ML over W. Myrtle PL. / RR. The bridge is 42.4 meters long and was built in 1956, with reconstruction in 1991.
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.