IH 45 NB & HOV
IH 45 NB & HOV in 8.0 MI N Of Ih 610, Harris County, Texas received a condition grade of B (74/100). Built in 1989, the bridge carries 126K vehicles daily on IH 45 NB & HOV over West RD.
IH 45 NB & HOV 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 1989, making it 37 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. IH 45 NB & HOV carries an average daily traffic count of 126,410 vehicles, with 6 lane(s) crossing West RD. 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 NB & HOV is a 37-year-old bridge located 8.0 MI N Of Ih 610 in Harris County, Texas. The bridge carries IH 45 NB & HOV over West RD with 6 traffic lanes, handling approximately 126K vehicles per day. Built in 1989, the structure spans 85.3 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
IH 45 NB & HOV 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.
IH 45 NB & HOV was built in 1989, making it 37 years old. The average bridge age in the United States is 48 years.
IH 45 NB & HOV carries approximately 126K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 85.3 meters long and located on IH 45 NB & HOV in 8.0 MI N Of Ih 610, Harris County, Texas.
No, IH 45 NB & HOV 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 NB & HOV is located 8.0 MI N Of Ih 610 in Harris County, Texas. The bridge carries IH 45 NB & HOV over West RD. Its coordinates are 29.915125, -95.412447. It is maintained by State Highway Agency.
IH 45 NB & HOV carries IH 45 NB & HOV over West RD. The bridge is 85.3 meters long and was built in 1989.
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.