GLEN ONOKO BRIDGE
Carrying GLEN ONOKO BRIDGE over LEHIGH RIVER
LEHIGH GORGE SP, Carbon, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: GLEN ONOKO BRIDGE
The GLEN ONOKO BRIDGE bridge in Carbon, Pennsylvania carries GLEN ONOKO BRIDGE over LEHIGH RIVER. It was built in 1812, making it 214 years old today. It was last reconstructed in 1912, extending its service life. The structure is built primarily of steel and spans 2 sections, stretching 72.8 meters (239 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Park/Forest/Reservation.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 99.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How GLEN ONOKO BRIDGE compares
Live comparison across Pennsylvania.
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 How the historical reference is calculated.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
- 1812
- Last Reconstructed
- 1912
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 72.8 m (239 ft)
- Deck Width
- 10.8 m (35 ft)
- Owner
- State Park/Forest/Reservation
- Avg Daily Traffic
- 100 vehicles/day
- Structure Number
- 000000000040359
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether GLEN ONOKO BRIDGE 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 GLEN ONOKO BRIDGE against other structures in Carbon and across Pennsylvania. Pennsylvania 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 GLEN ONOKO BRIDGE?
GLEN ONOKO BRIDGE in Carbon, Pennsylvania has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is GLEN ONOKO BRIDGE inspected?
GLEN ONOKO BRIDGE'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 100 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. GLEN ONOKO BRIDGE 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 GLEN ONOKO BRIDGE?
GLEN ONOKO BRIDGE has an NBI inventory load rating of 99.8 metric tons.
Who is responsible for maintaining GLEN ONOKO BRIDGE?
GLEN ONOKO BRIDGE is owned and maintained by State Park/Forest/Reservation.
How old is GLEN ONOKO BRIDGE and does age affect safety?
GLEN ONOKO BRIDGE was built in 1812, making it 214 years old and last reconstructed in 1912.
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.