US Bridges

Flumerfelt Road over Oconner Creek

Good

Thurston County, Washington · 0.24 M W of Oconner RD · Structure no. 089021000000000

Built
2018
7 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Flumerfelt Road over Oconner Creek is a steel stringer/multi-beam or girder carrying Flumerfelt Road over Oconner Creek in Thurston County, Washington. It was built in 2018, so it is 7 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 140 vehicles a day, roughly 2% of them trucks, projected to reach 216 by 2042. The structure is 36 ft (11 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFlumerfelt Road
CrossesOconner Creek
Location0.24 M W of Oconner RD
RouteCounty Highway 11565
CountyThurston County
StateWashington
Coordinates46.77844, -122.92208
Functional classRural Local

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating52 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic216 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Flumerfelt Road over Oconner Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Flumerfelt Road over Oconner 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 October 2023.

How much traffic does Flumerfelt Road over Oconner Creek carry?

About 140 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Flumerfelt Road over Oconner Creek?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 26 ft wide.

Who owns Flumerfelt Road over Oconner Creek?

It is owned by the County Highway Agency.