Lahaina Bypass Hwy
Carrying Lahaina Bypass Hwy over Unknown Stream
_, Maui, Hawaii
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Lahaina Bypass Hwy
The Lahaina Bypass Hwy bridge in Maui, Hawaii carries Lahaina Bypass Hwy over Unknown Stream. It was built in 2012, making it 14 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 16,500 vehicles, placing it in the heavily-trafficked tier of Hawaii bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 48.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Lahaina Bypass Hwy compares
Live comparison across Hawaii.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 2012
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 10.4 m (34 ft)
- Deck Width
- 12.2 m (40 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 16,500 vehicles/day
- Structure Number
- 009030001400363
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 Lahaina Bypass Hwy 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 Lahaina Bypass Hwy against other structures in Maui and across Hawaii. Hawaii 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 Lahaina Bypass Hwy?
Lahaina Bypass Hwy in Maui, Hawaii on the FHWA's 0–9 scale.
How often is Lahaina Bypass Hwy inspected?
Lahaina Bypass Hwy'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 16,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Lahaina Bypass Hwy 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 Lahaina Bypass Hwy?
Lahaina Bypass Hwy has an NBI inventory load rating of 48.3 metric tons.
Who is responsible for maintaining Lahaina Bypass Hwy?
Lahaina Bypass Hwy is owned and maintained by State Highway Agency.
How old is Lahaina Bypass Hwy and does age affect safety?
Lahaina Bypass Hwy was built in 2012, making it 14 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.