IH 45 SB PIERCE EL
IH 45 SB PIERCE EL in SW Of Downtown Houston, Harris County, Texas received a condition grade of B (62/100). Built in 1967, the bridge carries 124K vehicles daily on IH 45 SB PIERCE EL over US 59 & RR Misc ST.
IH 45 SB PIERCE EL carries a B on the BridgeSafety Condition Score with 62/100. 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 1967 and is now 59 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 SB PIERCE EL carries an average daily traffic count of 124,161 vehicles, with 3 lane(s) crossing US 59 & RR Misc 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
IH 45 SB PIERCE EL is a 59-year-old bridge located SW Of Downtown Houston in Harris County, Texas. The bridge carries IH 45 SB PIERCE EL over US 59 & RR Misc ST with 3 traffic lanes, handling approximately 124K vehicles per day. Built in 1967 and reconstructed in 1997, the structure spans 2281.1 meters.
The bridge received a Condition Grade of B (62/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 6/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
IH 45 SB PIERCE EL has a Condition Score of 62/100 (Grade B). Its deck is rated 7/9, superstructure 6/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
IH 45 SB PIERCE EL was built in 1967 and reconstructed in 1997, making it 59 years old. The average bridge age in the United States is 48 years.
IH 45 SB PIERCE EL carries approximately 124K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 2281.1 meters long and located on IH 45 SB PIERCE EL in SW Of Downtown Houston, Harris County, Texas.
No, IH 45 SB PIERCE EL 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 SB PIERCE EL is located SW Of Downtown Houston in Harris County, Texas. The bridge carries IH 45 SB PIERCE EL over US 59 & RR Misc ST. Its coordinates are 29.749358, -95.371275. It is maintained by State Highway Agency.
IH 45 SB PIERCE EL carries IH 45 SB PIERCE EL over US 59 & RR Misc ST. The bridge is 2281.1 meters long and was built in 1967, with reconstruction in 1997.
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.