US Bridges

Kohala Mtn RD over Keawewai Strm(honokoa)

Good

Hawaii County, Hawaii · 5.89MI N/Kawaihae RD · Structure no. 001002500500844

Built
1961
64 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
51 ft
1 main span
Daily traffic
2,400
2017 count
Owner
State
State Highway Agency

About this bridge

Kohala Mtn RD over Keawewai Strm(honokoa) is a concrete slab carrying Kohala Mtn RD over Keawewai Strm(honokoa) in Hawaii County, Hawaii. It was built in 1961, so it is 64 years old, older 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 2,400 vehicles a day, roughly 6% of them trucks, projected to reach 2,095 by 2025. The structure is 51 ft (15.5 m) long and 37 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKohala Mtn RD
CrossesKeawewai Strm(honokoa)
Location5.89MI N/Kawaihae RD
RouteU.S. Route 250
StateHawaii
Coordinates20.07786, -155.76264
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span49 ft (14.9 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2017)
Projected traffic2,095 by 2025
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
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$308,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kohala Mtn RD over Keawewai Strm(honokoa) built?

It was built in 1961, making it 64 years old in 2025.

What condition is Kohala Mtn RD over Keawewai Strm(honokoa) 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 April 2024.

How much traffic does Kohala Mtn RD over Keawewai Strm(honokoa) carry?

About 2,400 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is Kohala Mtn RD over Keawewai Strm(honokoa)?

The structure is 51 ft (15.5 m) long with a longest span of 49 ft (14.9 m) and a deck 37 ft wide.

Who owns Kohala Mtn RD over Keawewai Strm(honokoa)?

It is owned by the State Highway Agency.