IH 45 ML
IH 45 ML in Ih 45 Ml, Harris County, Texas received a condition grade of B (64/100). Built in 1971, the bridge carries 236K vehicles daily on IH 45 ML over Bw 8 Ebfr & Wbfr.
IH 45 ML carries a B on the BridgeSafety Condition Score with 64/100. 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 1971 and is now 55 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. IH 45 ML carries an average daily traffic count of 235,527 vehicles, with 9 lane(s) crossing Bw 8 Ebfr & Wbfr. 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
IH 45 ML is a 55-year-old bridge located Ih 45 Ml in Harris County, Texas. The bridge carries IH 45 ML over Bw 8 Ebfr & Wbfr with 9 traffic lanes, handling approximately 236K vehicles per day. Built in 1971 and reconstructed in 1995, the structure spans 164.6 meters.
The bridge received a Condition Grade of B (64/100) 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
IH 45 ML has a Condition Score of 64/100 (Grade B). 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.
IH 45 ML was built in 1971 and reconstructed in 1995, making it 55 years old. The average bridge age in the United States is 48 years.
IH 45 ML carries approximately 236K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 164.6 meters long and located on IH 45 ML in Ih 45 Ml, Harris County, Texas.
No, IH 45 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.
IH 45 ML is located Ih 45 Ml in Harris County, Texas. The bridge carries IH 45 ML over Bw 8 Ebfr & Wbfr. Its coordinates are 29.940253, -95.413828. It is maintained by State Highway Agency.
IH 45 ML carries IH 45 ML over Bw 8 Ebfr & Wbfr. The bridge is 164.6 meters long and was built in 1971, with reconstruction in 1995.
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.