US Bridges

Saddle RD over Unmd STRM(53 MI Br)

Fair

Hawaii County, Hawaii · TMK:6-7-001:003 · Structure no. 001002010901164

Built
1942
83 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
39 ft
2 main spans
Daily traffic
1,020
2007 count
Owner
County
County Highway Agency

About this bridge

Saddle RD over Unmd STRM(53 MI Br) is a concrete continuous slab carrying Saddle RD over Unmd STRM(53 MI Br) in Hawaii County, Hawaii. It was built in 1942, so it is 83 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 1,020 vehicles a day, projected to reach 2,050 by 2025. The structure is 39 ft (11.9 m) long and 28 ft wide. If it were closed, the detour would be 64 mi (103 km).

CarriesSaddle RD
CrossesUnmd STRM(53 MI Br)
LocationTMK:6-7-001:003
RouteCounty Highway 0
StateHawaii
Coordinates19.92752, -155.67989
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2007)
Projected traffic2,050 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed64 mi (103 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$335,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Saddle RD over Unmd STRM(53 MI Br) built?

It was built in 1942, making it 83 years old in 2025.

What condition is Saddle RD over Unmd STRM(53 MI Br) 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 April 2024.

How much traffic does Saddle RD over Unmd STRM(53 MI Br) carry?

About 1,020 vehicles per day (2007 count).

How long is Saddle RD over Unmd STRM(53 MI Br)?

The structure is 39 ft (11.9 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns Saddle RD over Unmd STRM(53 MI Br)?

It is owned by the County Highway Agency.