US Bridges

NW Joss Ave. over Unnamed Channel

Good

Washington County, Oregon · MP 0.01 · Structure no. 23237 000 00000

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
74 ft
3 main spans
Daily traffic
100
2016 count
Owner
County
County Highway Agency

About this bridge

NW Joss Ave. over Unnamed Channel is a steel culvert carrying NW Joss Ave. over Unnamed Channel in Washington County, Oregon. It was built in 2007, so it is 18 years old, younger than the Oregon average of 49.9 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2036. The structure is 74 ft (22.6 m) long and 44 ft wide. If it were closed, the detour would be 123 mi (198 km).

Location

Open in Google Maps
CarriesNW Joss Ave.
CrossesUnnamed Channel
LocationMP 0.01
RouteCounty Highway 0
CountyWashington County
StateOregon
Coordinates45.56511, -122.84916
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHL 93
Structure length74 ft (22.6 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2016)
Projected traffic100 by 2036
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123 mi (198 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW Joss Ave. over Unnamed Channel built?

It was built in 2007, making it 18 years old in 2025.

What condition is NW Joss Ave. over Unnamed Channel 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 August 2023.

How much traffic does NW Joss Ave. over Unnamed Channel carry?

About 100 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is NW Joss Ave. over Unnamed Channel?

The structure is 74 ft (22.6 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns NW Joss Ave. over Unnamed Channel?

It is owned by the County Highway Agency.