IRR 5836C
Carrying IRR 5836C over CREEK
1.5W .4S OF PITCHER, Ottawa, Oklahoma
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
IRR 5836C in Ottawa, Oklahoma sits above 30% of rated Oklahoma bridges on inventory load rating (23 t), while its 1938 build year is earlier than 87% of Ottawa's recorded-year cohort (271 bridges).
IRR 5836C in Ottawa, Oklahoma is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1938, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure OK:060630000000000
PRE-1950 · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- PRE-1950 Pre-1950
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: IRR 5836C
The IRR 5836C bridge in Ottawa, Oklahoma carries IRR 5836C over CREEK. It was built in 1938, making it 88 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 10.1 meters (33 feet) end to end. Daily traffic averages 200 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 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How IRR 5836C compares
Age against the county: built in 1938, earlier than 235 of Ottawa's 271 bridges with a recorded construction year (87%), against a county median build year of 1957. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Oklahoma bridges with a recorded inventory load rating (22,909 of 22,917 rated).
IRR 5836C vs every rated Oklahoma bridge
Inventory load rating (metric tons), FHWA NBI, this state
23 Top 70% higher than 30% of 22,909 bridges
rated Oklahoma bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Ottawa inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 271 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1938
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 10.1 m (33 ft)
- Deck Width
- 12.8 m (42 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 200 vehicles/day
- Structure Number
- 060630000000000
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 IRR 5836C 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 IRR 5836C against other structures in Ottawa 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 IRR 5836C?
IRR 5836C in Ottawa, Oklahoma on the FHWA's 0–9 scale.
How often is IRR 5836C inspected?
IRR 5836C'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 200 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IRR 5836C is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for IRR 5836C?
IRR 5836C has an NBI inventory load rating of 23.3 metric tons.
Who is responsible for maintaining IRR 5836C?
IRR 5836C is owned and maintained by County Highway Agency.
How old is IRR 5836C and does age affect safety?
IRR 5836C was built in 1938, making it 88 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.