US Bridges

Kamehameha HWY over Anahulu Strm

PoorPosted for load

Honolulu County, Hawaii · 0.052MI Ne/Int Haleiwa/K · Structure no. 00300C291100137

Built
1921
104 years old
Condition
Poor
inspected October 2023
Type
Arch - Thru
Concrete Continuous
Length
161 ft
2 main spans
Daily traffic
12,850
2000 count
Owner
County
County Highway Agency

About this bridge

Kamehameha HWY over Anahulu Strm is a concrete continuous arch - thru carrying Kamehameha HWY over Anahulu Strm in Honolulu County, Hawaii. It was built in 1921, so it is 104 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 4 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: posted for load restriction.

It carries about 12,850 vehicles a day, projected to reach 16,063 by 2025. The structure is 161 ft (49.1 m) long and 33 ft wide.

CarriesKamehameha HWY
CrossesAnahulu Strm
Location0.052MI Ne/Int Haleiwa/K
RouteCounty Highway 0
StateHawaii
Coordinates21.59357, -158.10338
Functional classRural Principal Arterial - Other

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeArch - Thru
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length161 ft (49.1 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic12,850 (2000)
Projected traffic16,063 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$714,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kamehameha HWY over Anahulu Strm built?

It was built in 1921, making it 104 years old in 2025.

What condition is Kamehameha HWY over Anahulu Strm 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 October 2023.

How much traffic does Kamehameha HWY over Anahulu Strm carry?

About 12,850 vehicles per day (2000 count).

How long is Kamehameha HWY over Anahulu Strm?

The structure is 161 ft (49.1 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns Kamehameha HWY over Anahulu Strm?

It is owned by the County Highway Agency.