IH 45
IH 45 in 0.90 MI N Of Fm 1488, Montgomery County, Texas received a condition grade of B (78/100). Built in 2007, the bridge carries 181K vehicles daily on IH 45 over W Fk San Jac Ri N Rel.
IH 45 carries a B on the BridgeSafety Condition Score with 78/100. 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 2007 and is 19 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. IH 45 carries an average daily traffic count of 180,786 vehicles, with 10 lane(s) crossing W Fk San Jac Ri N Rel. 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 is a 19-year-old bridge located 0.90 MI N Of Fm 1488 in Montgomery County, Texas. The bridge carries IH 45 over W Fk San Jac Ri N Rel with 10 traffic lanes, handling approximately 181K vehicles per day. Built in 2007, the structure spans 210.9 meters.
The bridge received a Condition Grade of B (78/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), 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 has a Condition Score of 78/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
IH 45 was built in 2007, making it 19 years old. The average bridge age in the United States is 48 years.
IH 45 carries approximately 181K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 210.9 meters long and located on IH 45 in 0.90 MI N Of Fm 1488, Montgomery County, Texas.
No, IH 45 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 is located 0.90 MI N Of Fm 1488 in Montgomery County, Texas. The bridge carries IH 45 over W Fk San Jac Ri N Rel. Its coordinates are 30.250381, -95.456900. It is maintained by State Highway Agency.
IH 45 carries IH 45 over W Fk San Jac Ri N Rel. The bridge is 210.9 meters long and was built in 2007.
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.