US Bridges

Tinker Road over Waimanalo Stream

Poor

Honolulu County, Hawaii · 100 M N of Bellows Gate · Structure no. AFHIBFMV85103

Built
1941
84 years old, rebuilt 1956
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
94 ft
2 main spans
Daily traffic
500
2012 count
Owner
Federal
Air Force

About this bridge

Tinker Road over Waimanalo Stream is a prestressed concrete stringer/multi-beam or girder carrying Tinker Road over Waimanalo Stream in Honolulu County, Hawaii. It was built in 1941 and reconstructed in 1956, 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, posting recommended but not legally implemented.

It carries about 500 vehicles a day, projected to reach 600 by 2032. The structure is 94 ft (28.5 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesTinker Road
CrossesWaimanalo Stream
Location100 M N of Bellows Gate
StateHawaii
Coordinates21.36425, -157.71035
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating3 US tons
Inventory rating3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length94 ft (28.5 m)
Longest span45 ft (13.6 m)
Deck width27 ft (8.3 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2012)
Projected traffic600 by 2032
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$3.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Tinker Road over Waimanalo Stream built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1956.

What condition is Tinker Road over Waimanalo Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Tinker Road over Waimanalo Stream carry?

About 500 vehicles per day (2012 count).

How long is Tinker Road over Waimanalo Stream?

The structure is 94 ft (28.5 m) long with a longest span of 45 ft (13.6 m) and a deck 27 ft wide.

Who owns Tinker Road over Waimanalo Stream?

It is owned by the Air Force.