I-15 SB off Ramp
I-15 SB off Ramp in I-15 SB Off Ramp To Lehi, Utah County, Utah received a condition grade of F (0/100). Built in 2020, the bridge carries 195K vehicles daily on I-15 SB off Ramp over I-15 SB On Ramp. It is classified as structurally deficient.
I-15 SB off Ramp carries an F on the BridgeSafety Condition Score with 0/100 — the bottom tier of the FHWA NBI distribution. Component ratings flag the structure for near-term rehabilitation or replacement; the bridge may remain open to traffic but is on the priority list for action.
The bridge was built in 2020 and is 6 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. I-15 SB off Ramp carries an average daily traffic count of 195,000 vehicles, with 1 lane(s) crossing I-15 SB On Ramp. 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
I-15 SB off Ramp is a 6-year-old bridge located I-15 SB Off Ramp To Lehi in Utah County, Utah. The bridge carries I-15 SB off Ramp over I-15 SB On Ramp with 1 traffic lane, handling approximately 195K vehicles per day. Built in 2020, the structure spans 14.7 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below, this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-15 SB off Ramp has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
I-15 SB off Ramp was built in 2020, making it 6 years old. The average bridge age in the United States is 48 years.
I-15 SB off Ramp carries approximately 195K vehicles per day (average daily traffic). The bridge has 1 traffic lane. It is 14.7 meters long and located on I-15 SB off Ramp in I-15 SB Off Ramp To Lehi, Utah County, Utah.
Yes, I-15 SB off Ramp is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
I-15 SB off Ramp is located I-15 SB Off Ramp To Lehi in Utah County, Utah. The bridge carries I-15 SB off Ramp over I-15 SB On Ramp. Its coordinates are 40.418611, -111.876667. It is maintained by State Highway Agency.
I-15 SB off Ramp carries I-15 SB off Ramp over I-15 SB On Ramp. The bridge is 14.7 meters long and was built in 2020.
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.