US Bridges

Yoman RD Ai over Balch Passage

Good

Pierce County, Washington · 0.1 NE Villa Beach · Structure no. 084498000000000

Built
1984
41 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
344 ft
1 main span
Daily traffic
505
2024 count
Owner
County
County Highway Agency

About this bridge

Yoman RD Ai over Balch Passage is a prestressed concrete box beam or girders - single or spread carrying Yoman RD Ai over Balch Passage in Pierce County, Washington. It was built in 1984, so it is 41 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 505 vehicles a day, roughly 5% of them trucks, projected to reach 840 by 2045. The structure is 344 ft (104.9 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesYoman RD Ai
CrossesBalch Passage
Location0.1 NE Villa Beach
RouteCounty Highway 10580
Coordinates47.17809, -122.67847
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating55 US tons
Inventory rating33 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+9 approach)
Design loadHS 20
Structure length344 ft (104.9 m)
Longest span90 ft (27.4 m)
Deck width21 ft (6.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic505 (2024)
Projected traffic840 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$11 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Yoman RD Ai over Balch Passage built?

It was built in 1984, making it 41 years old in 2025.

What condition is Yoman RD Ai over Balch Passage in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Yoman RD Ai over Balch Passage carry?

About 505 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Yoman RD Ai over Balch Passage?

The structure is 344 ft (104.9 m) long with a longest span of 90 ft (27.4 m) and a deck 21 ft wide.

Who owns Yoman RD Ai over Balch Passage?

It is owned by the County Highway Agency.