I-84 (SR-84) WBL
Carrying I-84 (SR-84) WBL over WEBER RIVER AND UPRR
BELOW UP&L RESERVOIR, Morgan, Utah
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
I-84 (SR-84) WBL in Morgan, Utah sits above 71% of rated Utah bridges on inventory load rating (40 t), while its 1965 build year is earlier than 43% of Morgan's recorded-year cohort (53 bridges).
I-84 (SR-84) WBL in Morgan, Utah is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1965, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure UT:4C 476
INTERSTATE-ERA · STEEL · LONG-SPAN-RUN · SUPER-LED · HEAVY-ADT · HEAVY-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- LONG-SPAN-RUN 8 spans
- SUPER-LED Superstructure-led
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: I-84 (SR-84) WBL
The I-84 (SR-84) WBL bridge in Morgan, Utah carries I-84 (SR-84) WBL over WEBER RIVER AND UPRR. It was built in 1965, making it 61 years old today. It was last reconstructed in 2008, extending its service life. The structure is built primarily of steel continuous and spans 8 sections, stretching 177.5 meters (582 feet) end to end. Daily traffic averages 23,828 vehicles, placing it in the heavily-trafficked tier of Utah bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How I-84 (SR-84) WBL compares
Age against the county: built in 1965, earlier than 23 of Morgan's 53 bridges with a recorded construction year (43%), against a county median build year of 1964. This is one of the newer structures in its county.
Live comparison across Utah bridges with a recorded inventory load rating (3,113 of 3,125 rated).
I-84 (SR-84) WBL vs every rated Utah bridge
Inventory load rating (metric tons), FHWA NBI, this state
40 Top 29% higher than 71% of 3,113 bridges
rated Utah bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Morgan inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 53 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1965
- Last Reconstructed
- 2008
- Material
- Steel Continuous
- Number of Spans
- 8
- Structure Length
- 177.5 m (582 ft)
- Deck Width
- 10.1 m (33 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 23,828 vehicles/day
- Structure Number
- 4C 476
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
- • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
I-84 (SR-84) WBL is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare I-84 (SR-84) WBL against other structures in Morgan 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 I-84 (SR-84) WBL?
I-84 (SR-84) WBL in Morgan, Utah has a deck rating of 7/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is I-84 (SR-84) WBL inspected?
I-84 (SR-84) WBL'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 23,828 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I-84 (SR-84) WBL is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for I-84 (SR-84) WBL?
I-84 (SR-84) WBL has an NBI inventory load rating of 40.2 metric tons.
Who is responsible for maintaining I-84 (SR-84) WBL?
I-84 (SR-84) WBL is owned and maintained by State Highway Agency.
How old is I-84 (SR-84) WBL and does age affect safety?
I-84 (SR-84) WBL was built in 1965, making it 61 years old and last reconstructed in 2008.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.