US Bridges

FAI-H1 over Aiea Strm 15X12 Twn Culv

Good

Honolulu County, Hawaii · 0.08MI E/Aiea Hts DR Sep · Structure no. 003000H10201287

Built
1970
55 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
247,700
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Aiea Strm 15X12 Twn Culv is a concrete continuous culvert carrying FAI-H1 over Aiea Strm 15X12 Twn Culv in Honolulu County, Hawaii. It was built in 1970, so it is 55 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 247,700 vehicles a day, roughly 4% of them trucks, projected to reach 166,683 by 2025. The structure is 33 ft (10.1 m) long and 177 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAI-H1
CrossesAiea Strm 15X12 Twn Culv
Location0.08MI E/Aiea Hts DR Sep
RouteInterstate 0H1
StateHawaii
Coordinates21.37935, -157.92872
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.6 m)
Deck width177 ft (53.8 m)
Roadway width150 ft (45.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247,700 (2017)
Projected traffic166,683 by 2025
Trucks4%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FAI-H1 over Aiea Strm 15X12 Twn Culv built?

It was built in 1970, making it 55 years old in 2025.

What condition is FAI-H1 over Aiea Strm 15X12 Twn Culv in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FAI-H1 over Aiea Strm 15X12 Twn Culv carry?

About 247,700 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is FAI-H1 over Aiea Strm 15X12 Twn Culv?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.6 m) and a deck 177 ft wide.

Who owns FAI-H1 over Aiea Strm 15X12 Twn Culv?

It is owned by the State Highway Agency.