IH-820 ML Viaduct
IH-820 ML Viaduct in Ih820 Ml Viaduct @ Sh183, Tarrant County, Texas received a condition grade of B (78/100). Built in 2014, the bridge carries 169K vehicles daily on IH-820 ML Viaduct over Sh 183.
IH-820 ML Viaduct 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 2014 and is 12 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-820 ML Viaduct carries an average daily traffic count of 168,666 vehicles, with 4 lane(s) crossing Sh 183. 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-820 ML Viaduct is a 12-year-old bridge located Ih820 Ml Viaduct @ Sh183 in Tarrant County, Texas. The bridge carries IH-820 ML Viaduct over Sh 183 with 4 traffic lanes, handling approximately 169K vehicles per day. Built in 2014, the structure spans 1368.6 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-820 ML Viaduct 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-820 ML Viaduct was built in 2014, making it 12 years old. The average bridge age in the United States is 48 years.
IH-820 ML Viaduct carries approximately 169K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 1368.6 meters long and located on IH-820 ML Viaduct in Ih820 Ml Viaduct @ Sh183, Tarrant County, Texas.
No, IH-820 ML Viaduct 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-820 ML Viaduct is located Ih820 Ml Viaduct @ Sh183 in Tarrant County, Texas. The bridge carries IH-820 ML Viaduct over Sh 183. Its coordinates are 32.833989, -97.219128. It is maintained by State Highway Agency.
IH-820 ML Viaduct carries IH-820 ML Viaduct over Sh 183. The bridge is 1368.6 meters long and was built in 2014.
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.