US Bridges

Sullivan Lake RD over Outlet Creek

Fair

Pend Oreille County, Washington · 1/4 M S/O Ranger Station · Structure no. 086265000000000

Built
1995
30 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
193 ft
3 main spans
Daily traffic
450
2018 count
Owner
County
County Highway Agency

About this bridge

Sullivan Lake RD over Outlet Creek is a prestressed concrete tee beam carrying Sullivan Lake RD over Outlet Creek in Pend Oreille County, Washington. It was built in 1995, so it is 30 years old, younger than the Washington average of 49.8 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 450 vehicles a day, projected to reach 550 by 2038. The structure is 193 ft (58.8 m) long and 37 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

Location

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CarriesSullivan Lake RD
CrossesOutlet Creek
Location1/4 M S/O Ranger Station
RouteCounty Highway 93450
CountyPend Oreille County
StateWashington
Coordinates48.83918, -117.28822
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length193 ft (58.8 m)
Longest span76 ft (23.2 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2018)
Projected traffic550 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sullivan Lake RD over Outlet Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Sullivan Lake RD over Outlet Creek 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 Sullivan Lake RD over Outlet Creek carry?

About 450 vehicles per day (2018 count).

How long is Sullivan Lake RD over Outlet Creek?

The structure is 193 ft (58.8 m) long with a longest span of 76 ft (23.2 m) and a deck 37 ft wide.

Who owns Sullivan Lake RD over Outlet Creek?

It is owned by the County Highway Agency.