US Bridges

Old Mamalahoa HWY over Paheehee Stream

FairPosted for load

Hawaii County, Hawaii · Tmk: 2-8-017:012 · Structure no. 001280001100003

Built
1929
96 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
61 ft
2 main spans
Daily traffic
30
1986 count
Owner
County
County Highway Agency

About this bridge

Old Mamalahoa HWY over Paheehee Stream is a concrete continuous tee beam carrying Old Mamalahoa HWY over Paheehee Stream in Hawaii County, Hawaii. It was built in 1929, so it is 96 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, projected to reach 38 by 2025. The structure is 61 ft (18.6 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOld Mamalahoa HWY
CrossesPaheehee Stream
LocationTmk: 2-8-017:012
RouteCounty Highway 28000
CountyHawaii County
StateHawaii
Coordinates19.87233, -155.11648
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.8 US tons
Inventory rating11.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1986)
Projected traffic38 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$444,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Mamalahoa HWY over Paheehee Stream built?

It was built in 1929, making it 96 years old in 2025.

What condition is Old Mamalahoa HWY over Paheehee Stream 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 2024.

How much traffic does Old Mamalahoa HWY over Paheehee Stream carry?

About 30 vehicles per day (1986 count).

How long is Old Mamalahoa HWY over Paheehee Stream?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 20 ft wide.

Who owns Old Mamalahoa HWY over Paheehee Stream?

It is owned by the County Highway Agency.