US Bridges

Oconnor Road over Irrigation Canal

Good

Klamath County, Oregon · 009 MI W of Matney Road · Structure no. 35C169088700110

Built
1966
59 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
85
2020 count
Owner
County
County Highway Agency

About this bridge

Oconnor Road over Irrigation Canal is a prestressed concrete slab carrying Oconnor Road over Irrigation Canal in Klamath County, Oregon. It was built in 1966, so it is 59 years old, older 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 85 vehicles a day, projected to reach 90 by 2025. The structure is 41 ft (12.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOconnor Road
CrossesIrrigation Canal
Location009 MI W of Matney Road
RouteCounty Highway C0887
CountyKlamath County
StateOregon
Coordinates42.08977, -121.71515
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckWood or timber
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2020)
Projected traffic90 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Oconnor Road over Irrigation Canal built?

It was built in 1966, making it 59 years old in 2025.

What condition is Oconnor Road over Irrigation Canal 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 February 2023.

How much traffic does Oconnor Road over Irrigation Canal carry?

About 85 vehicles per day (2020 count).

How long is Oconnor Road over Irrigation Canal?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Oconnor Road over Irrigation Canal?

It is owned by the County Highway Agency.