US Bridges

FAS Route V242 over Sinlahekin Creek

Fair

Okanogan County, Washington · 2.3 Mi.N.Loomis · Structure no. 083465000000000

Built
1966
59 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
93
2023 count
Owner
County
County Highway Agency

About this bridge

FAS Route V242 over Sinlahekin Creek is a prestressed concrete tee beam carrying FAS Route V242 over Sinlahekin Creek in Okanogan County, Washington. It was built in 1966, so it is 59 years old, older 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 93 vehicles a day, roughly 16% of them trucks, projected to reach 150 by 2042. The structure is 61 ft (18.7 m) long and 20 ft wide. If it were closed, the detour would be 57.8 mi (93 km).

CarriesFAS Route V242
CrossesSinlahekin Creek
Location2.3 Mi.N.Loomis
RouteCounty Highway 40660
Coordinates48.85167, -119.65
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating23.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckWood or timber
Main spans1
Design loadHS 20
Structure length61 ft (18.7 m)
Longest span58 ft (17.7 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2023)
Projected traffic150 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed57.8 mi (93 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$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS Route V242 over Sinlahekin Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is FAS Route V242 over Sinlahekin 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 September 2024.

How much traffic does FAS Route V242 over Sinlahekin Creek carry?

About 93 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is FAS Route V242 over Sinlahekin Creek?

The structure is 61 ft (18.7 m) long with a longest span of 58 ft (17.7 m) and a deck 20 ft wide.

Who owns FAS Route V242 over Sinlahekin Creek?

It is owned by the County Highway Agency.