US Bridges

Franklin Road over Cowiche Creek N.Fork

Good

Yakima County, Washington · 00.12 So. of Rosenkranz · Structure no. 087039000000000

Built
2002
23 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
495
2022 count
Owner
County
County Highway Agency

About this bridge

Franklin Road over Cowiche Creek N.Fork is a prestressed concrete slab carrying Franklin Road over Cowiche Creek N.Fork in Yakima County, Washington. It was built in 2002, so it is 23 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 495 vehicles a day, roughly 5% of them trucks, projected to reach 845 by 2042. The structure is 38 ft (11.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFranklin Road
CrossesCowiche Creek N.Fork
Location00.12 So. of Rosenkranz
RouteCounty Highway 20450
Coordinates46.70776, -120.7622
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating52.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic495 (2022)
Projected traffic845 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Franklin Road over Cowiche Creek N.Fork built?

It was built in 2002, making it 23 years old in 2025.

What condition is Franklin Road over Cowiche Creek N.Fork 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 July 2024.

How much traffic does Franklin Road over Cowiche Creek N.Fork carry?

About 495 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Franklin Road over Cowiche Creek N.Fork?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.

Who owns Franklin Road over Cowiche Creek N.Fork?

It is owned by the County Highway Agency.