IRR:LOST RIVER RD
Carrying IRR:LOST RIVER RD over LOST RIVER
MILE POINT 5.9, Yakutat City and, Alaska
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
IRR:LOST RIVER RD in Yakutat City and, Alaska sits above 20% of rated Alaska bridges on inventory load rating (25 t), while its 1985 build year is earlier than 7% of Yakutat City and's recorded-year cohort (15 bridges).
IRR:LOST RIVER RD in Yakutat City and, Alaska is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1985, 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 AK:1196
LATE-CENTURY · PRESTRESS · MULTI-SPAN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- MULTI-SPAN 3 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard 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: IRR:LOST RIVER RD
The IRR:LOST RIVER RD bridge in Yakutat City and, Alaska carries IRR:LOST RIVER RD over LOST RIVER. It was built in 1985, making it 41 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 30.6 meters (100 feet) end to end. Daily traffic averages 100 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 a deck rating of 7/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How IRR:LOST RIVER RD compares
Age against the county: built in 1985, earlier than 1 of Yakutat City and's 15 bridges with a recorded construction year (7%), against a county median build year of 1976. This is one of the newer structures in its county.
Live comparison across Alaska bridges with a recorded inventory load rating (1,679 of 1,685 rated).
IRR:LOST RIVER RD vs every rated Alaska bridge
Inventory load rating (metric tons), FHWA NBI, this state
25 Top 80% higher than 20% 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.
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.
Yakutat City and inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 15 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
- 1985
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 30.6 m (100 ft)
- Deck Width
- 5.2 m (17 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 100 vehicles/day
- Structure Number
- 1196
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) rates good at 7/9, with no significant deterioration on file.
- • 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 IRR:LOST RIVER 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 IRR:LOST RIVER RD against other structures in Yakutat City and 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 IRR:LOST RIVER RD?
IRR:LOST RIVER RD in Yakutat City and, Alaska 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 IRR:LOST RIVER RD inspected?
IRR:LOST RIVER 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 100 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IRR:LOST RIVER 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 IRR:LOST RIVER RD?
IRR:LOST RIVER RD has an NBI inventory load rating of 24.5 metric tons.
Who is responsible for maintaining IRR:LOST RIVER RD?
IRR:LOST RIVER RD is owned and maintained by State Highway Agency.
How old is IRR:LOST RIVER RD and does age affect safety?
IRR:LOST RIVER RD was built in 1985, making it 41 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.