EIGHTH STREET
Carrying EIGHTH STREET over BOARDMAN RIVER
IN TRAVERSE CITY, Grand Traverse, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
EIGHTH STREET in Grand Traverse, Michigan sits above 97% of rated Michigan bridges on inventory load rating (87 t), while its 1974 build year is earlier than 36% of Grand Traverse's recorded-year cohort (33 bridges).
EIGHTH STREET in Grand Traverse, Michigan is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1974, 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:000000000003071
INTERSTATE-ERA · PRESTRESS · MULTI-SPAN · SUB-LED · HEAVY-ADT · HEAVY-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- MULTI-SPAN 2 spans
- SUB-LED Substructure-led
- HEAVY-ADT Heavy 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: EIGHTH STREET
The EIGHTH STREET bridge in Grand Traverse, Michigan carries EIGHTH STREET over BOARDMAN RIVER. It was built in 1974, making it 52 years old today. It was last reconstructed in 2021, extending its service life. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 36.1 meters (118 feet) end to end. Daily traffic averages 15,609 vehicles, placing it in the heavily-trafficked tier of Michigan bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 9/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How EIGHTH STREET compares
Age against the county: built in 1974, earlier than 12 of Grand Traverse's 33 bridges with a recorded construction year (36%), against a county median build year of 1962. This is one of the newer structures in its county.
Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).
EIGHTH STREET vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
87 Top 3% higher than 97% 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
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.
Grand Traverse inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 33 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
- 1974
- Last Reconstructed
- 2021
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 36.1 m (118 ft)
- Deck Width
- 20.4 m (67 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 15,609 vehicles/day
- Structure Number
- 000000000003071
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 (9/9), showing no significant deterioration.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether EIGHTH 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 EIGHTH STREET against other structures in Grand Traverse 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 EIGHTH STREET?
EIGHTH STREET in Grand Traverse, Michigan has a deck rating of 8/9, superstructure rating of 9/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is EIGHTH STREET inspected?
EIGHTH 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 15,609 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. EIGHTH STREET 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 EIGHTH STREET?
EIGHTH STREET has an NBI inventory load rating of 86.5 metric tons.
Who is responsible for maintaining EIGHTH STREET?
EIGHTH STREET is owned and maintained by City/Municipal Highway Agency.
How old is EIGHTH STREET and does age affect safety?
EIGHTH STREET was built in 1974, making it 52 years old and last reconstructed in 2021.
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.