US Bridges

Plantation RD over Plt Rd/Kaupuni Chl K-2

Good

Honolulu County, Hawaii · TMK=8-5-03 · Structure no. 003810001100001

Built
1968
57 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
6,861
2000 count
Owner
County
County Highway Agency

About this bridge

Plantation RD over Plt Rd/Kaupuni Chl K-2 is a prestressed concrete tee beam carrying Plantation RD over Plt Rd/Kaupuni Chl K-2 in Honolulu County, Hawaii. It was built in 1968, so it is 57 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 6,861 vehicles a day, projected to reach 8,576 by 2025. The structure is 43 ft (13.1 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPlantation RD
CrossesPlt Rd/Kaupuni Chl K-2
LocationTMK=8-5-03
RouteCity Street 8541
CountyHonolulu County
StateHawaii
Coordinates21.4493, -158.18479
Functional classUrban 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 protection6 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 evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating17.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span32 ft (9.8 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,861 (2000)
Projected traffic8,576 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Plantation RD over Plt Rd/Kaupuni Chl K-2 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Plantation RD over Plt Rd/Kaupuni Chl K-2 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 December 2023.

How much traffic does Plantation RD over Plt Rd/Kaupuni Chl K-2 carry?

About 6,861 vehicles per day (2000 count).

How long is Plantation RD over Plt Rd/Kaupuni Chl K-2?

The structure is 43 ft (13.1 m) long with a longest span of 32 ft (9.8 m) and a deck 50 ft wide.

Who owns Plantation RD over Plt Rd/Kaupuni Chl K-2?

It is owned by the County Highway Agency.