HEAD-O-LAKE RD
Carrying HEAD-O-LAKE RD over OTTAWA LAKE OUTLET
1.6 MI NO OF OLD US 223, Monroe, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
HEAD-O-LAKE RD in Monroe, Michigan sits above 61% of rated Michigan bridges on inventory load rating (42 t), while its 2002 build year is earlier than 20% of Monroe's recorded-year cohort (297 bridges).
HEAD-O-LAKE RD in Monroe, Michigan is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2002, it carries 1 rated component 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:000000000007223
POST-2000 · CONCRETE · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- CONCRETE Concrete
- SINGLE-SPAN Single span
- CULVERT-LED Culvert-led
- LOCAL-ADT Local 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: HEAD-O-LAKE RD
The HEAD-O-LAKE RD bridge in Monroe, Michigan carries HEAD-O-LAKE RD over OTTAWA LAKE OUTLET. It was built in 2002, making it 24 years old today. The structure is built primarily of concrete and spans 1 section, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 570 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 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How HEAD-O-LAKE RD compares
Age against the county: built in 2002, earlier than 58 of Monroe's 297 bridges with a recorded construction year (20%), against a county median build year of 1973. 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).
HEAD-O-LAKE RD vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
42 Top 39% higher than 61% 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.
Monroe inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 297 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
- 2002
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 10.4 m (34 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 570 vehicles/day
- Structure Number
- 000000000007223
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 HEAD-O-LAKE 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 HEAD-O-LAKE RD against other structures in Monroe 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 HEAD-O-LAKE RD?
HEAD-O-LAKE RD in Monroe, Michigan on the FHWA's 0–9 scale.
How often is HEAD-O-LAKE RD inspected?
HEAD-O-LAKE 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 570 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HEAD-O-LAKE RD 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 HEAD-O-LAKE RD?
HEAD-O-LAKE RD has an NBI inventory load rating of 42.1 metric tons.
Who is responsible for maintaining HEAD-O-LAKE RD?
HEAD-O-LAKE RD is owned and maintained by County Highway Agency.
How old is HEAD-O-LAKE RD and does age affect safety?
HEAD-O-LAKE RD was built in 2002, making it 24 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.