MARSHALL RD
Carrying MARSHALL RD over MILL CREEK
SCIO TWP SEC 18, Washtenaw, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
MARSHALL RD in Washtenaw, Michigan sits above 52% of rated Michigan bridges on inventory load rating (40 t), while its 1976 build year is earlier than 41% of Washtenaw's recorded-year cohort (262 bridges).
MARSHALL RD in Washtenaw, Michigan is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1976, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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:000000000011026
INTERSTATE-ERA · PRESTRESS · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
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: MARSHALL RD
The MARSHALL RD bridge in Washtenaw, Michigan carries MARSHALL RD over MILL CREEK. It was built in 1976, making it 50 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 23.7 meters (78 feet) end to end. Daily traffic averages 807 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 a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How MARSHALL RD compares
Age against the county: built in 1976, earlier than 107 of Washtenaw's 262 bridges with a recorded construction year (41%), against a county median build year of 1971. 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).
MARSHALL RD vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
40 Top 48% higher than 52% 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.
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
- 1976
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 23.7 m (78 ft)
- Deck Width
- 10.3 m (34 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 807 vehicles/day
- Structure Number
- 000000000011026
Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) rates good at 7/9, 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 MARSHALL RD 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 MARSHALL RD 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 MARSHALL RD?
MARSHALL RD in Washtenaw, Michigan has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is MARSHALL RD inspected?
MARSHALL RD'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 807 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MARSHALL RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for MARSHALL RD?
MARSHALL RD has an NBI inventory load rating of 39.5 metric tons.
Who is responsible for maintaining MARSHALL RD?
MARSHALL RD is owned and maintained by County Highway Agency.
How old is MARSHALL RD and does age affect safety?
MARSHALL RD was built in 1976, making it 50 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.