US Bridges

Akaka Falls RD over Paheehee Glh-Akaka Falls

Fair

Hawaii County, Hawaii · 3.37MI W/Mamalahoa HWY · Structure no. 001002200500040

Built
1927
98 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
720
2019 count
Owner
State
State Highway Agency

About this bridge

Akaka Falls RD over Paheehee Glh-Akaka Falls is a concrete continuous slab carrying Akaka Falls RD over Paheehee Glh-Akaka Falls in Hawaii County, Hawaii. It was built in 1927, so it is 98 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 720 vehicles a day, roughly 3% of them trucks, projected to reach 2,028 by 2025. The structure is 26 ft (7.8 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesAkaka Falls RD
CrossesPaheehee Glh-Akaka Falls
Location3.37MI W/Mamalahoa HWY
RouteU.S. Route 220
CountyHawaii County
StateHawaii
Coordinates19.85084, -155.14793
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span11 ft (3.4 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2019)
Projected traffic2,028 by 2025
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$399,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Akaka Falls RD over Paheehee Glh-Akaka Falls built?

It was built in 1927, making it 98 years old in 2025.

What condition is Akaka Falls RD over Paheehee Glh-Akaka Falls in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does Akaka Falls RD over Paheehee Glh-Akaka Falls carry?

About 720 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Akaka Falls RD over Paheehee Glh-Akaka Falls?

The structure is 26 ft (7.8 m) long with a longest span of 11 ft (3.4 m) and a deck 16 ft wide.

Who owns Akaka Falls RD over Paheehee Glh-Akaka Falls?

It is owned by the State Highway Agency.