1680C
Carrying 1680C over CREEK
3.9 MI N CHATTANOONA, Comanche, Oklahoma
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 1680C
The 1680C bridge in Comanche, Oklahoma carries 1680C over CREEK. It was built in 1939, making it 87 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.0 meters (23 feet) end to end. Daily traffic averages 189 vehicles, placing it in the lower-traffic tier of Oklahoma 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 21.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 1680C compares
Live comparison across Oklahoma.
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 How the historical reference is calculated.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
- 1939
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 7.0 m (23 ft)
- Deck Width
- 10.1 m (33 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 189 vehicles/day
- Structure Number
- 067220000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
1680C 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 1680C against other structures in Comanche and across Oklahoma. Oklahoma 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 1680C?
1680C in Comanche, Oklahoma on the FHWA's 0–9 scale.
How often is 1680C inspected?
1680C'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 189 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 1680C 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 1680C?
1680C has an NBI inventory load rating of 21.8 metric tons.
Who is responsible for maintaining 1680C?
1680C is owned and maintained by County Highway Agency.
How old is 1680C and does age affect safety?
1680C was built in 1939, making it 87 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.