US Bridges

Kelso Avenue over A-2 Channel

Good

Lane County, Oregon · At Irvington · Structure no. 39C322344200021

Built
1992
33 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Kelso Avenue over A-2 Channel is a prestressed concrete slab carrying Kelso Avenue over A-2 Channel in Lane County, Oregon. It was built in 1992, so it is 33 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 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 150 vehicles a day, projected to reach 172 by 2025. The structure is 58 ft (17.7 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKelso Avenue
CrossesA-2 Channel
LocationAt Irvington
RouteCounty Highway C3442
StateOregon
Coordinates44.11339, -123.16976
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating69 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span57 ft (17.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic172 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Kelso Avenue over A-2 Channel built?

It was built in 1992, making it 33 years old in 2025.

What condition is Kelso Avenue over A-2 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 May 2023.

How much traffic does Kelso Avenue over A-2 Channel carry?

About 150 vehicles per day (2020 count).

How long is Kelso Avenue over A-2 Channel?

The structure is 58 ft (17.7 m) long with a longest span of 57 ft (17.4 m) and a deck 28 ft wide.

Who owns Kelso Avenue over A-2 Channel?

It is owned by the County Highway Agency.