US 59 HOV
US 59 HOV in Ih 610/US 59 Interchange, Harris County, Texas received a condition grade of A (85/100). Built in 2002, the bridge carries 165K vehicles daily on US 59 HOV over Ih 610 Nbfr.
US 59 HOV carries an A on the BridgeSafety Condition Score with 85/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 2002 and is 24 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. US 59 HOV carries an average daily traffic count of 164,550 vehicles, with 1 lane(s) crossing Ih 610 Nbfr. 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
US 59 HOV is a 24-year-old bridge located Ih 610/US 59 Interchange in Harris County, Texas. The bridge carries US 59 HOV over Ih 610 Nbfr with 1 traffic lane, handling approximately 165K vehicles per day. Built in 2002, the structure spans 13.4 meters.
The bridge received a Condition Grade of A (85/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
US 59 HOV has a Condition Score of 85/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
US 59 HOV was built in 2002, making it 24 years old. The average bridge age in the United States is 48 years.
US 59 HOV carries approximately 165K vehicles per day (average daily traffic). The bridge has 1 traffic lane. It is 13.4 meters long and located on US 59 HOV in Ih 610/US 59 Interchange, Harris County, Texas.
No, US 59 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.
US 59 HOV is located Ih 610/US 59 Interchange in Harris County, Texas. The bridge carries US 59 HOV over Ih 610 Nbfr. Its coordinates are 29.729044, -95.459211. It is maintained by State Highway Agency.
US 59 HOV carries US 59 HOV over Ih 610 Nbfr. The bridge is 13.4 meters long and was built in 2002.
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.