TTP BIA 1011
Carrying TTP BIA 1011 over ONION CREEK
SAGINAW CHIPPEWA RES., Isabella, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TTP BIA 1011 in Isabella, Michigan sits above 94% of rated Michigan bridges on inventory load rating (67 t), while its 2021 build year is earlier than 1% of Isabella's recorded-year cohort (183 bridges).
TTP BIA 1011 in Isabella, Michigan is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2021, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. 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:0000F60472T0001
POST-2000 · CONCRETE · SINGLE-SPAN · TIED-CTRL · ADT-UNK · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- CONCRETE Concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- ADT-UNK ADT unknown
- 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: TTP BIA 1011
The TTP BIA 1011 bridge in Isabella, Michigan carries TTP BIA 1011 over ONION CREEK. It was built in 2021, making it 5 years old today. The structure is built primarily of concrete and spans 1 section, stretching 9.1 meters (30 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by Indian Tribal Government.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How TTP BIA 1011 compares
Age against the county: built in 2021, earlier than 2 of Isabella's 183 bridges with a recorded construction year (1%), against a county median build year of 1980. 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).
TTP BIA 1011 vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
67 Top 6% higher than 94% 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.
Isabella inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 183 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
- 2021
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 9.1 m (30 ft)
- Deck Width
- 11.3 m (37 ft)
- Owner
- Indian Tribal Government
- Structure Number
- 0000F60472T0001
Condition Analysis
- • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.
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 TTP BIA 1011 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 TTP BIA 1011 against other structures in Isabella 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 TTP BIA 1011?
TTP BIA 1011 in Isabella, Michigan has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is TTP BIA 1011 inspected?
TTP BIA 1011's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TTP BIA 1011 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 TTP BIA 1011?
TTP BIA 1011 has an NBI inventory load rating of 66.7 metric tons.
Who is responsible for maintaining TTP BIA 1011?
TTP BIA 1011 is owned and maintained by Indian Tribal Government.
How old is TTP BIA 1011 and does age affect safety?
TTP BIA 1011 was built in 2021, making it 5 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.
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.