US Bridges

Tinker Road over Drainage

Fair

Honolulu County, Hawaii · .2 Miles from HWY 72 · Structure no. AFHIBFMV00001

Built
1941
84 years old, rebuilt 1975
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
80 ft
8 main spans
Daily traffic
500
2012 count
Owner
Federal
Air Force

About this bridge

Tinker Road over Drainage is a concrete continuous culvert carrying Tinker Road over Drainage in Honolulu County, Hawaii. It was built in 1941 and reconstructed in 1975, so it is 84 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 5 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 500 vehicles a day, projected to reach 600 by 2032. The structure is 80 ft (24.3 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesTinker Road
CrossesDrainage
Location.2 Miles from HWY 72
CountyHonolulu County
StateHawaii
Coordinates21.34719, -157.71096
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans8
Design loadUnknown
Structure length80 ft (24.3 m)
Longest span10 ft (3 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2012)
Projected traffic600 by 2032
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$28,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Tinker Road over Drainage built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1975.

What condition is Tinker Road over Drainage 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 June 2023.

How much traffic does Tinker Road over Drainage carry?

About 500 vehicles per day (2012 count).

How long is Tinker Road over Drainage?

The structure is 80 ft (24.3 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Tinker Road over Drainage?

It is owned by the Air Force.