US Bridges

Moanalua RD over Moanalua Str Ec TRESTL#1

Fair

Honolulu County, Hawaii · 0.25MI E/Off Ramp Paa ST · Structure no. 003000780400395

Built
1979
46 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
163 ft
4 main spans
Daily traffic
98,600
2017 count
Owner
State
State Highway Agency

About this bridge

Moanalua RD over Moanalua Str Ec TRESTL#1 is a prestressed concrete continuous stringer/multi-beam or girder carrying Moanalua RD over Moanalua Str Ec TRESTL#1 in Honolulu County, Hawaii. It was built in 1979, so it is 46 years old, younger 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 6 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 98,600 vehicles a day, roughly 2% of them trucks, projected to reach 136,900 by 2025. The structure is 163 ft (49.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMoanalua RD
CrossesMoanalua Str Ec TRESTL#1
Location0.25MI E/Off Ramp Paa ST
RouteU.S. Route 0H201
CountyHonolulu County
StateHawaii
Coordinates21.34475, -157.89316
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating52.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,600 (2017)
Projected traffic136,900 by 2025
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$722,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Moanalua RD over Moanalua Str Ec TRESTL#1 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Moanalua RD over Moanalua Str Ec TRESTL#1 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 May 2023.

How much traffic does Moanalua RD over Moanalua Str Ec TRESTL#1 carry?

About 98,600 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Moanalua RD over Moanalua Str Ec TRESTL#1?

The structure is 163 ft (49.7 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Moanalua RD over Moanalua Str Ec TRESTL#1?

It is owned by the State Highway Agency.