GRAVEL RD 46LC
Carrying GRAVEL RD 46LC over UNNAMED CREEK
BTW SECTIONS 46PC & 46LC, Pittsburg, Oklahoma
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
GRAVEL RD 46LC in Pittsburg, Oklahoma sits above 8% of rated Oklahoma bridges on inventory load rating (16 t), while its 1954 build year is earlier than 68% of Pittsburg's recorded-year cohort (411 bridges).
GRAVEL RD 46LC in Pittsburg, Oklahoma is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1954, it carries 3 rated components 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:DAPAMCMCA000561
INTERSTATE-ERA · TIMBER · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- TIMBER Wood or timber
- LONG-SPAN-RUN 4 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light 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: GRAVEL RD 46LC
The GRAVEL RD 46LC bridge in Pittsburg, Oklahoma carries GRAVEL RD 46LC over UNNAMED CREEK. It was built in 1954, making it 72 years old today. The structure is built primarily of wood or timber and spans 4 sections, stretching 15.2 meters (50 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Oklahoma bridges. It is owned and maintained by NASA.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure 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 GRAVEL RD 46LC compares
Age against the county: built in 1954, earlier than 281 of Pittsburg's 411 bridges with a recorded construction year (68%), against a county median build year of 1965. 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).
GRAVEL RD 46LC vs every rated Oklahoma bridge
Inventory load rating (metric tons), FHWA NBI, this state
16 Top 92% higher than 8% 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.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Pittsburg inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 411 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
- 1954
- Material
- Wood or Timber
- Number of Spans
- 4
- Structure Length
- 15.2 m (50 ft)
- Deck Width
- 7.2 m (24 ft)
- Owner
- NASA
- Avg Daily Traffic
- 100 vehicles/day
- Structure Number
- DAPAMCMCA000561
Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
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 GRAVEL RD 46LC 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 GRAVEL RD 46LC against other structures in Pittsburg 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 GRAVEL RD 46LC?
GRAVEL RD 46LC in Pittsburg, Oklahoma has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is GRAVEL RD 46LC inspected?
GRAVEL RD 46LC'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. GRAVEL RD 46LC 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 GRAVEL RD 46LC?
GRAVEL RD 46LC has an NBI inventory load rating of 15.9 metric tons.
Who is responsible for maintaining GRAVEL RD 46LC?
GRAVEL RD 46LC is owned and maintained by NASA.
How old is GRAVEL RD 46LC and does age affect safety?
GRAVEL RD 46LC 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.
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.