FHWA NBI 2024 Inspection record Public-domain dataset

Main Street

Carrying Main Street over City Creek Parking

Main St. SLC, Salt Lake, Utah

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
8 t Inventory load rating

Bridge Snapshot: Main Street

The Main Street bridge in Salt Lake, Utah carries Main Street over City Creek Parking. It was built in 2008, making it 18 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 30.5 meters (100 feet) end to end. Daily traffic averages 15,031 vehicles, placing it in the heavily-trafficked tier of Utah bridges. It is owned and maintained by Private.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 8.4 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How Main Street compares

▼ 28.4
Load rating vs Utah average (36.8 t)
Bottom 2%
Lower load rating than 98% of Utah bridges
659
Bridges in Salt Lake · 18 in Poor condition
Main Street 8.4 t
Utah average 36.8 t

Live comparison across Utah.

Historical Sufficiency Rating

PlainBridge-computed
49.6 / 100 - historical 20–49.9 band
Structural adequacy /55
16.7
Serviceability /30
21.0
Essentiality /15
11.8
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
8.4 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
2008
Material
Concrete
Number of Spans
3
Structure Length
30.5 m (100 ft)
Deck Width
10.8 m (35 ft)
Owner
Private
Avg Daily Traffic
15,031 vehicles/day
Structure Number
035226D

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether Main Street is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare Main Street against other structures in Salt Lake and across Utah. Utah bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for Main Street?

Main Street in Salt Lake, Utah has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is Main Street inspected?

Main Street's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 15,031 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. Main Street is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for Main Street?

Main Street has an NBI inventory load rating of 8.4 metric tons.

Who is responsible for maintaining Main Street?

Main Street is owned and maintained by Private.

How old is Main Street and does age affect safety?

Main Street was built in 2008, making it 18 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.