FHWA NBI 2024 Inspection record Public-domain dataset

PARKER ROAD

Carrying PARKER ROAD over TRIB TO MILL CREEK

SCIO TWP SEC 30, Washtenaw, Michigan

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
11 t Inventory load rating Lower than 98% of rated Michigan bridges

PARKER ROAD in Washtenaw, Michigan sits above 2% of rated Michigan bridges on inventory load rating (11 t), while its 1968 build year is earlier than 53% of Washtenaw's recorded-year cohort (262 bridges).

PARKER ROAD in Washtenaw, Michigan is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1968, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 3. 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 MI:000000000013913

INTERSTATE-ERA · STEEL · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · LIGHT-LOAD · CAT-POOR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • SINGLE-SPAN Single span
  • CULVERT-LED Culvert-led
  • LOCAL-ADT Local ADT
  • LIGHT-LOAD Light 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: PARKER ROAD

The PARKER ROAD bridge in Washtenaw, Michigan carries PARKER ROAD over TRIB TO MILL CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of steel and spans 1 section, stretching 6.2 meters (20 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of Michigan bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

How PARKER ROAD compares

▼ 30.5
Load rating vs Michigan average (41.2 t; 11,366 of 11,371 rated)
262
Bridges in Washtenaw · 53 in Poor condition

Age against the county: built in 1968, earlier than 138 of Washtenaw's 262 bridges with a recorded construction year (53%), against a county median build year of 1971. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

PARKER ROAD 10.7 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).

PARKER ROAD vs every rated Michigan bridge

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

11 Top 98% higher than 2% 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

Culvert
3/9
Poor (1–4)
Inventory Load Rating
10.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Washtenaw inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 262 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
1968
Material
Steel
Number of Spans
1
Structure Length
6.2 m (20 ft)
0
Owner
County Highway Agency
Avg Daily Traffic
300 vehicles/day
Structure Number
000000000013913

How to read this record

PARKER ROAD 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 PARKER ROAD against other structures in Washtenaw 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 PARKER ROAD?

PARKER ROAD in Washtenaw, Michigan on the FHWA's 0–9 scale.

How often is PARKER ROAD inspected?

PARKER ROAD'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 300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. PARKER ROAD 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 PARKER ROAD?

PARKER ROAD has an NBI inventory load rating of 10.7 metric tons.

Who is responsible for maintaining PARKER ROAD?

PARKER ROAD is owned and maintained by County Highway Agency.

How old is PARKER ROAD and does age affect safety?

PARKER ROAD was built in 1968, making it 58 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

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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.