US Bridges

South Ferguson RD over Parke Creek

Good

Kittitas County, Washington · 00.34 N Sorenson RD · Structure no. 082945000000000

Built
1996
29 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
37 ft
1 main span
Daily traffic
95
2023 count
Owner
County
County Highway Agency

About this bridge

South Ferguson RD over Parke Creek is a concrete continuous slab carrying South Ferguson RD over Parke Creek in Kittitas County, Washington. It was built in 1996, so it is 29 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 95 vehicles a day, roughly 24% of them trucks, projected to reach 251 by 2043. The structure is 37 ft (11.3 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSouth Ferguson RD
CrossesParke Creek
Location00.34 N Sorenson RD
RouteCounty Highway 62702
Coordinates46.9463, -120.45017
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2023)
Projected traffic251 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 South Ferguson RD over Parke Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is South Ferguson RD over Parke Creek 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 November 2024.

How much traffic does South Ferguson RD over Parke Creek carry?

About 95 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is South Ferguson RD over Parke Creek?

The structure is 37 ft (11.3 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns South Ferguson RD over Parke Creek?

It is owned by the County Highway Agency.