US Bridges

Inchelium Highway over Barnaby Creek

Good

Ferry County, Washington · 60 S Intersect CR 00010 · Structure no. 088572000000000

Built
2012
13 years old
Condition
Good
inspected June 2023
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
762
2019 count
Owner
County
County Highway Agency

About this bridge

Inchelium Highway over Barnaby Creek is a steel culvert carrying Inchelium Highway over Barnaby Creek in Ferry County, Washington. It was built in 2012, so it is 13 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 762 vehicles a day, roughly 15% of them trucks, projected to reach 1,135 by 2040. The structure is 23 ft (6.9 m) long and 26 ft wide. If it were closed, the detour would be 57.8 mi (93 km).

CarriesInchelium Highway
CrossesBarnaby Creek
Location60 S Intersect CR 00010
RouteCounty Highway 30
Coordinates48.43355, -118.22171
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 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 rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span23 ft (6.9 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic762 (2019)
Projected traffic1,135 by 2040
Trucks15%
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$303,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Inchelium Highway over Barnaby Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Inchelium Highway over Barnaby 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 June 2023.

How much traffic does Inchelium Highway over Barnaby Creek carry?

About 762 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is Inchelium Highway over Barnaby Creek?

The structure is 23 ft (6.9 m) long with a longest span of 23 ft (6.9 m) and a deck 26 ft wide.

Who owns Inchelium Highway over Barnaby Creek?

It is owned by the County Highway Agency.