US Bridges

ST Johns RD over Saint Johns RD/M-4

Fair

Honolulu County, Hawaii · TMK=8-7-02 · Structure no. 003814001100001

Built
1967
58 years old
Condition
Fair
inspected December 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
2,426
1985 count
Owner
County
County Highway Agency

About this bridge

ST Johns RD over Saint Johns RD/M-4 is a concrete frame carrying ST Johns RD over Saint Johns RD/M-4 in Honolulu County, Hawaii. It was built in 1967, so it is 58 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 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 2,426 vehicles a day, projected to reach 3,033 by 2025. The structure is 28 ft (8.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST Johns RD
CrossesSaint Johns RD/M-4
LocationTMK=8-7-02
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.41642, -158.17391
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionDecember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width43 ft (13.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,426 (1985)
Projected traffic3,033 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$227,000
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Johns RD over Saint Johns RD/M-4 built?

It was built in 1967, making it 58 years old in 2025.

What condition is ST Johns RD over Saint Johns RD/M-4 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 December 2023.

How much traffic does ST Johns RD over Saint Johns RD/M-4 carry?

About 2,426 vehicles per day (1985 count).

How long is ST Johns RD over Saint Johns RD/M-4?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.

Who owns ST Johns RD over Saint Johns RD/M-4?

It is owned by the County Highway Agency.