FHWA NBI 2024 Inspection record Public-domain dataset

I-475 RAMP E

Carrying I-475 RAMP E over I-475 & I-69

IN FLINT, Genesee, Michigan

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
48 t Inventory load rating Higher than 75% of rated Michigan bridges

I-475 RAMP E in Genesee, Michigan sits above 75% of rated Michigan bridges on inventory load rating (48 t), while its 1970 build year is earlier than 44% of Genesee's recorded-year cohort (371 bridges).

I-475 RAMP E in Genesee, Michigan is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1970, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 MI:000000000002658

INTERSTATE-ERA · STEEL · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · HEAVY-LOAD · CAT-GOOD

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • MULTI-SPAN 2 spans
  • TIED-CTRL Tied control
  • ARTERIAL-ADT Arterial ADT
  • HEAVY-LOAD Heavy load
  • CAT-GOOD Good

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-475 RAMP E

The I-475 RAMP E bridge in Genesee, Michigan carries I-475 RAMP E over I-475 & I-69. It was built in 1970, making it 56 years old today. It was last reconstructed in 2022, extending its service life. The structure is built primarily of steel continuous and spans 2 sections, stretching 137.7 meters (452 feet) end to end. Daily traffic averages 5,010 vehicles, placing it in the moderately-trafficked tier of Michigan bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.

How I-475 RAMP E compares

▲ 6.8
Load rating vs Michigan average (41.2 t; 11,366 of 11,371 rated)
371
Bridges in Genesee · 57 in Poor condition

Age against the county: built in 1970, earlier than 163 of Genesee's 371 bridges with a recorded construction year (44%), against a county median build year of 1970.

I-475 RAMP E 48.0 t
Michigan average (11,366 of 11,371 rated) 41.2 t

Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).

I-475 RAMP E vs every rated Michigan bridge

Inventory load rating (metric tons), FHWA NBI, this state

48 Top 25% higher than 75% of 11,366 bridges

rated Michigan 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

Deck
8/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
48.0 t
NBI inventory level (metric tons)
Overall Condition
Good

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.

Genesee inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 371 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
1970
Last Reconstructed
2022
Material
Steel Continuous
Number of Spans
2
Structure Length
137.7 m (452 ft)
Deck Width
8.6 m (28 ft)
Owner
State Highway Agency
Avg Daily Traffic
5,010 vehicles/day
Structure Number
000000000002658

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether I-475 RAMP E 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 I-475 RAMP E against other structures in Genesee and across Michigan. Michigan 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-475 RAMP E?

I-475 RAMP E in Genesee, Michigan has a deck rating of 8/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is I-475 RAMP E inspected?

I-475 RAMP E'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 5,010 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I-475 RAMP E is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for I-475 RAMP E?

I-475 RAMP E has an NBI inventory load rating of 48.0 metric tons.

Who is responsible for maintaining I-475 RAMP E?

I-475 RAMP E is owned and maintained by State Highway Agency.

How old is I-475 RAMP E and does age affect safety?

I-475 RAMP E was built in 1970, making it 56 years old and last reconstructed in 2022.

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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.