US Bridges

Maunawili RD over Maunawili Stream

Fair

Honolulu County, Hawaii · TMK=4-2-67 · Structure no. 003437001100001

Built
1937
88 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
41 ft
2 main spans
Daily traffic
2,151
1980 count
Owner
County
County Highway Agency

About this bridge

Maunawili RD over Maunawili Stream is a concrete continuous slab carrying Maunawili RD over Maunawili Stream in Honolulu County, Hawaii. It was built in 1937, so it is 88 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 2,151 vehicles a day, projected to reach 2,689 by 2025. The structure is 41 ft (12.5 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMaunawili RD
CrossesMaunawili Stream
LocationTMK=4-2-67
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.36165, -157.765
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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.5 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,151 (1980)
Projected traffic2,689 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-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$280,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Maunawili RD over Maunawili Stream built?

It was built in 1937, making it 88 years old in 2025.

What condition is Maunawili RD over Maunawili 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 August 2023.

How much traffic does Maunawili RD over Maunawili Stream carry?

About 2,151 vehicles per day (1980 count).

How long is Maunawili RD over Maunawili Stream?

The structure is 41 ft (12.5 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns Maunawili RD over Maunawili Stream?

It is owned by the County Highway Agency.