RICHARDSON HIGHWAY
Carrying RICHARDSON HIGHWAY over BOULDER CREEK
MILE POINT 55.5, Copper River, Alaska
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
RICHARDSON HIGHWAY in Copper River, Alaska sits above 95% of rated Alaska bridges on inventory load rating (81 t), while its 1974 build year is earlier than 60% of Copper River's recorded-year cohort (52 bridges).
RICHARDSON HIGHWAY in Copper River, Alaska is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1974, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. 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 AK:4117
INTERSTATE-ERA · STEEL · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- SINGLE-SPAN Single span
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy 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: RICHARDSON HIGHWAY
The RICHARDSON HIGHWAY bridge in Copper River, Alaska carries RICHARDSON HIGHWAY over BOULDER CREEK. It was built in 1974, making it 52 years old today. The structure is built primarily of steel and spans 1 section, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 440 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How RICHARDSON HIGHWAY compares
Age against the county: built in 1974, earlier than 31 of Copper River's 52 bridges with a recorded construction year (60%), against a county median build year of 1979. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Alaska bridges with a recorded inventory load rating (1,679 of 1,685 rated).
RICHARDSON HIGHWAY vs every rated Alaska bridge
Inventory load rating (metric tons), FHWA NBI, this state
81 Top 5% higher than 95% of 1,679 bridges
rated Alaska 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.
Copper River inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 52 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
- 1974
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 6.4 m (21 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 440 vehicles/day
- Structure Number
- 4117
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 RICHARDSON HIGHWAY 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 RICHARDSON HIGHWAY against other structures in Copper River and across Alaska. Alaska 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 RICHARDSON HIGHWAY?
RICHARDSON HIGHWAY in Copper River, Alaska on the FHWA's 0–9 scale.
How often is RICHARDSON HIGHWAY inspected?
RICHARDSON HIGHWAY'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 440 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. RICHARDSON HIGHWAY 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 RICHARDSON HIGHWAY?
RICHARDSON HIGHWAY has an NBI inventory load rating of 80.6 metric tons.
Who is responsible for maintaining RICHARDSON HIGHWAY?
RICHARDSON HIGHWAY is owned and maintained by State Highway Agency.
How old is RICHARDSON HIGHWAY and does age affect safety?
RICHARDSON HIGHWAY was built in 1974, making it 52 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.