US Bridges

Komohana ST over Alenaio Stream

Fair

Hawaii County, Hawaii · Tmk: 2-3-037:020 · Structure no. 001019401400050

Built
2001
24 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
13,241
1988 count
Owner
County
County Highway Agency

About this bridge

Komohana ST over Alenaio Stream is a concrete culvert carrying Komohana ST over Alenaio Stream in Hawaii County, Hawaii. It was built in 2001, so it is 24 years old, younger 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 13,241 vehicles a day, projected to reach 16,551 by 2025. The structure is 36 ft (10.9 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKomohana ST
CrossesAlenaio Stream
LocationTmk: 2-3-037:020
RouteCity Street 1940
CountyHawaii County
StateHawaii
Coordinates19.71074, -155.09618
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length36 ft (10.9 m)
Longest span36 ft (10.9 m)
Deck width80 ft (24.4 m)
Roadway width61 ft (18.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,241 (1988)
Projected traffic16,551 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$31,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Komohana ST over Alenaio Stream built?

It was built in 2001, making it 24 years old in 2025.

What condition is Komohana ST over Alenaio Stream 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 December 2023.

How much traffic does Komohana ST over Alenaio Stream carry?

About 13,241 vehicles per day (1988 count).

How long is Komohana ST over Alenaio Stream?

The structure is 36 ft (10.9 m) long with a longest span of 36 ft (10.9 m) and a deck 80 ft wide.

Who owns Komohana ST over Alenaio Stream?

It is owned by the County Highway Agency.