OLBRICH ROAD
Carrying OLBRICH ROAD over DRAIN DITCH RUSH CR
.9 MI S DUNHAM RD, McHenry, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLBRICH ROAD
The OLBRICH ROAD bridge in McHenry, Illinois carries OLBRICH ROAD over DRAIN DITCH RUSH CR. It was built in 1921, making it 105 years old today. It was last reconstructed in 1977, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 7.8 meters (26 feet) end to end. Daily traffic averages 275 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 26.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLBRICH ROAD compares
Live comparison across Illinois.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1921
- Last Reconstructed
- 1977
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 7.8 m (26 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 275 vehicles/day
- Structure Number
- 056304100000000
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 OLBRICH ROAD 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 OLBRICH ROAD against other structures in McHenry and across Illinois. Illinois 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 OLBRICH ROAD?
OLBRICH ROAD in McHenry, Illinois on the FHWA's 0–9 scale.
How often is OLBRICH ROAD inspected?
OLBRICH 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 275 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLBRICH ROAD 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 OLBRICH ROAD?
OLBRICH ROAD has an NBI inventory load rating of 26.6 metric tons.
Who is responsible for maintaining OLBRICH ROAD?
OLBRICH ROAD is owned and maintained by Town/Township Highway Agency.
How old is OLBRICH ROAD and does age affect safety?
OLBRICH ROAD was built in 1921, making it 105 years old and last reconstructed in 1977.
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.
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.