ROUTE 12 MUNSON RO
Carrying ROUTE 12 MUNSON RO over ANNIE CREEK
0.4 miles north of OR Rou, Klamath, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ROUTE 12 MUNSON RO
The ROUTE 12 MUNSON RO bridge in Klamath, Oregon carries ROUTE 12 MUNSON RO over ANNIE CREEK. It was built in 1954, making it 72 years old today. The structure is built primarily of wood or timber and spans 3 sections, stretching 33.8 meters (111 feet) end to end. Daily traffic averages 1,470 vehicles, placing it in the moderately-trafficked tier of Oregon bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 15.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ROUTE 12 MUNSON RO compares
Live comparison across Oregon.
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 How the historical reference is calculated.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
- 1954
- Material
- Wood or Timber
- Number of Spans
- 3
- Structure Length
- 33.8 m (111 ft)
- Deck Width
- 9.8 m (32 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 1,470 vehicles/day
- Structure Number
- 9320001P0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether ROUTE 12 MUNSON RO 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 ROUTE 12 MUNSON RO against other structures in Klamath and across Oregon. Oregon 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 ROUTE 12 MUNSON RO?
ROUTE 12 MUNSON RO in Klamath, Oregon has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is ROUTE 12 MUNSON RO inspected?
ROUTE 12 MUNSON RO'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 1,470 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ROUTE 12 MUNSON RO 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 ROUTE 12 MUNSON RO?
ROUTE 12 MUNSON RO has an NBI inventory load rating of 15.4 metric tons.
Who is responsible for maintaining ROUTE 12 MUNSON RO?
ROUTE 12 MUNSON RO is owned and maintained by National Park Service.
How old is ROUTE 12 MUNSON RO and does age affect safety?
ROUTE 12 MUNSON RO was built in 1954, making it 72 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.