IH 37 NB US 281 NB
IH 37 NB US 281 NB in Ih 35 & Ih 37 Interchange, Bexar County, Texas received a condition grade of B (65/100). Built in 1972, the bridge carries 127K vehicles daily on IH 37 NB US 281 NB over Ih 35 Etc.
IH 37 NB US 281 NB carries a B on the BridgeSafety Condition Score with 65/100. 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 1972 and is now 54 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 37 NB US 281 NB carries an average daily traffic count of 127,190 vehicles, with 4 lane(s) crossing Ih 35 Etc. 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 37 NB US 281 NB is a 54-year-old bridge located Ih 35 & Ih 37 Interchange in Bexar County, Texas. The bridge carries IH 37 NB US 281 NB over Ih 35 Etc with 4 traffic lanes, handling approximately 127K vehicles per day. Built in 1972, the structure spans 958 meters.
The bridge received a Condition Grade of B (65/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
IH 37 NB US 281 NB has a Condition Score of 65/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
IH 37 NB US 281 NB was built in 1972, making it 54 years old. The average bridge age in the United States is 48 years.
IH 37 NB US 281 NB carries approximately 127K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 958 meters long and located on IH 37 NB US 281 NB in Ih 35 & Ih 37 Interchange, Bexar County, Texas.
No, IH 37 NB US 281 NB 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 37 NB US 281 NB is located Ih 35 & Ih 37 Interchange in Bexar County, Texas. The bridge carries IH 37 NB US 281 NB over Ih 35 Etc. Its coordinates are 29.436844, -98.476953. It is maintained by State Highway Agency.
IH 37 NB US 281 NB carries IH 37 NB US 281 NB over Ih 35 Etc. The bridge is 958 meters long and was built in 1972.
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.