C15-LONG CREEK RD
Carrying C15-LONG CREEK RD over N.FORK JOHN DAY RIVER
26.0 MI NW JCT US 395, Grant, Oregon
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
C15-LONG CREEK RD in Grant, Oregon is rated Fair in the FHWA's 2024 National Bridge Inventory.
Built in 1899, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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 OR:23C151015 02602
PRE-1950 · PRESTRESS · MULTI-SPAN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- PRESTRESS Prestressed concrete
- MULTI-SPAN 3 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
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: C15-LONG CREEK RD
The C15-LONG CREEK RD bridge in Grant, Oregon carries C15-LONG CREEK RD over N.FORK JOHN DAY RIVER. It was built in 1899, making it 127 years old today. It was last reconstructed in 1982, extending its service life. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 59.1 meters (194 feet) end to end. Daily traffic averages 132 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How C15-LONG CREEK RD compares
Age against the county: built in 1899, earlier than 143 of Grant's 144 bridges with a recorded construction year (99%), against a county median build year of 1977. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Oregon bridges with a recorded inventory load rating (8,282 of 8,305 rated).
C15-LONG CREEK RD vs every rated Oregon bridge
Inventory load rating (metric tons), FHWA NBI, this state
61 Top 5% higher than 95% of 8,282 bridges
rated Oregon 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.
Grant inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 144 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
- 1899
- Last Reconstructed
- 1982
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 59.1 m (194 ft)
- Deck Width
- 4.9 m (16 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 132 vehicles/day
- Structure Number
- 23C151015 02602
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
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 C15-LONG CREEK RD 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 C15-LONG CREEK RD against other structures in Grant 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 C15-LONG CREEK RD?
C15-LONG CREEK RD in Grant, Oregon has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is C15-LONG CREEK RD inspected?
C15-LONG CREEK RD'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 132 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. C15-LONG CREEK RD 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 C15-LONG CREEK RD?
C15-LONG CREEK RD has an NBI inventory load rating of 60.8 metric tons.
Who is responsible for maintaining C15-LONG CREEK RD?
C15-LONG CREEK RD is owned and maintained by County Highway Agency.
How old is C15-LONG CREEK RD and does age affect safety?
C15-LONG CREEK RD was built in 1899, making it 127 years old and last reconstructed in 1982.
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.