FHWA NBI 2024 Inspection record Public-domain dataset

PARKER ROAD

Carrying PARKER ROAD over TRIB TO MILL CREEK

SCIO TWP SEC 30, Washtenaw, Michigan

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
11 t Inventory load rating

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. Its NBI inventory load rating is 10.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How PARKER ROAD compares

▼ 31.0
Load rating vs Michigan average (41.7 t)
Bottom 2%
Lower load rating than 98% of Michigan bridges
93
Bridges in Washtenaw · 15 in Poor condition
PARKER ROAD 10.7 t
Michigan average 41.7 t

Live comparison across Michigan.

Historical Sufficiency Rating

PlainBridge-computed
40.7 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
26.0
Essentiality /15
14.7
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

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.

Structural Details

Year Built
1968
Material
Steel
Number of Spans
1
Structure Length
6.2 m (20 ft)
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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.