US Bridges

Old Waialae RD over Manoa Palolo Strm

Fair

Honolulu County, Hawaii · 0.09MI E/Old Waialae RD · Structure no. 003000H11202486

Built
1953
72 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
117 ft
2 main spans
Daily traffic
21,400
2017 count
Owner
State
State Highway Agency

About this bridge

Old Waialae RD over Manoa Palolo Strm is a concrete continuous tee beam carrying Old Waialae RD over Manoa Palolo Strm in Honolulu County, Hawaii. It was built in 1953, so it is 72 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 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 21,400 vehicles a day, projected to reach 35,574 by 2025. The structure is 117 ft (35.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Waialae RD
CrossesManoa Palolo Strm
Location0.09MI E/Old Waialae RD
RouteU.S. Route 7601
StateHawaii
Coordinates21.29047, -157.81496
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length117 ft (35.7 m)
Longest span57 ft (17.4 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,400 (2017)
Projected traffic35,574 by 2025
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$915,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Waialae RD over Manoa Palolo Strm built?

It was built in 1953, making it 72 years old in 2025.

What condition is Old Waialae RD over Manoa Palolo Strm 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 July 2023.

How much traffic does Old Waialae RD over Manoa Palolo Strm carry?

About 21,400 vehicles per day (2017 count).

How long is Old Waialae RD over Manoa Palolo Strm?

The structure is 117 ft (35.7 m) long with a longest span of 57 ft (17.4 m) and a deck 54 ft wide.

Who owns Old Waialae RD over Manoa Palolo Strm?

It is owned by the State Highway Agency.