US Bridges

Weaver Road over Kizer Slough

Fair

Lane County, Oregon · 006 MI N HWY 126 5MI E Sf · Structure no. 39C105103900034

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
167
2020 count
Owner
County
County Highway Agency

About this bridge

Weaver Road over Kizer Slough is a prestressed concrete slab carrying Weaver Road over Kizer Slough in Lane County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 167 vehicles a day, roughly 10% of them trucks, projected to reach 197 by 2025. The structure is 47 ft (14.3 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesWeaver Road
CrossesKizer Slough
Location006 MI N HWY 126 5MI E Sf
RouteCounty Highway C1039
CountyLane County
StateOregon
Coordinates44.05694, -122.89742
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span46 ft (14 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic167 (2020)
Projected traffic197 by 2025
Trucks10%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$241,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Weaver Road over Kizer Slough built?

It was built in 1981, making it 44 years old in 2025.

What condition is Weaver Road over Kizer Slough in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Weaver Road over Kizer Slough carry?

About 167 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Weaver Road over Kizer Slough?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (14 m) and a deck 20 ft wide.

Who owns Weaver Road over Kizer Slough?

It is owned by the County Highway Agency.