OLD-27
Carrying OLD-27 over STATE AND INDIAN CREEK
LEE TWP SEC 18, Calhoun, Michigan
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLD-27
The OLD-27 bridge in Calhoun, Michigan carries OLD-27 over STATE AND INDIAN CREEK. It was built in 1931, making it 95 years old today. The structure is built primarily of concrete and spans 1 section, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 2,925 vehicles, placing it in the moderately-trafficked 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 4/9, substructure at 4/9. 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 24.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLD-27 compares
Live comparison across Michigan.
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 How the historical reference is calculated.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
- 1931
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 8.2 m (27 ft)
- Deck Width
- 15.6 m (51 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 2,925 vehicles/day
- Structure Number
- 000000000001328
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
OLD-27 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 OLD-27 against other structures in Calhoun 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 OLD-27?
OLD-27 in Calhoun, Michigan has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is OLD-27 inspected?
OLD-27'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 2,925 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD-27 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 OLD-27?
OLD-27 has an NBI inventory load rating of 24.9 metric tons.
Who is responsible for maintaining OLD-27?
OLD-27 is owned and maintained by County Highway Agency.
How old is OLD-27 and does age affect safety?
OLD-27 was built in 1931, making it 95 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.
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.