I 25 ML
I 25 ML in .85 MI N Of JCT I-25 &Amp, Arapahoe County, Colorado received a condition grade of C (58/100). Built in 1958, the bridge carries 171K vehicles daily on I 25 ML over County Line Road.
I 25 ML carries a C on the BridgeSafety Condition Score with 58/100. 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 1958 and is now 68 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 171,000 vehicles, with 10 lane(s) crossing County Line Road. 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 68-year-old bridge located .85 MI N Of JCT I-25 &Amp in Arapahoe County, Colorado. The bridge carries I 25 ML over County Line Road with 10 traffic lanes, handling approximately 171K vehicles per day. Built in 1958 and reconstructed in 1983, the structure spans 55.2 meters.
The bridge received a Condition Grade of C (58/100) 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 58/100 (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 1958 and reconstructed in 1983, making it 68 years old. The average bridge age in the United States is 48 years.
I 25 ML carries approximately 171K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 55.2 meters long and located on I 25 ML in .85 MI N Of JCT I-25 &Amp, Arapahoe 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 .85 MI N Of JCT I-25 &Amp in Arapahoe County, Colorado. The bridge carries I 25 ML over County Line Road. Its coordinates are 39.566106, -104.871994. It is maintained by State Highway Agency.
I 25 ML carries I 25 ML over County Line Road. The bridge is 55.2 meters long and was built in 1958, with reconstruction in 1983.
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.