I 25 ML
I 25 ML in I25 Sh33 US 40 Intercha, Denver County, Colorado received a condition grade of C (47/100). Built in 1952, the bridge carries 212K vehicles daily on I 25 ML over Ramp To I25 SB Walnut ST.
I 25 ML carries a C on the BridgeSafety Condition Score with 47/100. 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 1952 and is now 74 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 212,000 vehicles, with 8 lane(s) crossing Ramp To I25 SB Walnut ST. 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 74-year-old bridge located I25 Sh33 US 40 Intercha in Denver County, Colorado. The bridge carries I 25 ML over Ramp To I25 SB Walnut ST with 8 traffic lanes, handling approximately 212K vehicles per day. Built in 1952 and reconstructed in 1987, the structure spans 36.6 meters.
The bridge received a Condition Grade of C (47/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 5/9 (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 47/100 (Grade C). Its deck is rated 5/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 25 ML was built in 1952 and reconstructed in 1987, making it 74 years old. The average bridge age in the United States is 48 years.
I 25 ML carries approximately 212K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 36.6 meters long and located on I 25 ML in I25 Sh33 US 40 Intercha, 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 I25 Sh33 US 40 Intercha in Denver County, Colorado. The bridge carries I 25 ML over Ramp To I25 SB Walnut ST. Its coordinates are 39.741850, -105.014358. It is maintained by State Highway Agency.
I 25 ML carries I 25 ML over Ramp To I25 SB Walnut ST. The bridge is 36.6 meters long and was built in 1952, with reconstruction in 1987.
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.