US Bridges

Horton Road over Congdon Creek

Fair

Lane County, Oregon · 040 MI North of Blachly · Structure no. 39C376364000350

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
273
2020 count
Owner
County
County Highway Agency

About this bridge

Horton Road over Congdon Creek is a prestressed concrete slab carrying Horton Road over Congdon Creek in Lane County, Oregon. It was built in 1977, so it is 48 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 273 vehicles a day, roughly 5% of them trucks, projected to reach 318 by 2025. The structure is 66 ft (20.1 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesHorton Road
CrossesCongdon Creek
Location040 MI North of Blachly
RouteCounty Highway C3640
CountyLane County
StateOregon
Coordinates44.22166, -123.51185
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span65 ft (19.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic273 (2020)
Projected traffic318 by 2025
Trucks5%
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 Horton Road over Congdon Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Horton Road over Congdon Creek 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 September 2023.

How much traffic does Horton Road over Congdon Creek carry?

About 273 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Horton Road over Congdon Creek?

The structure is 66 ft (20.1 m) long with a longest span of 65 ft (19.8 m) and a deck 32 ft wide.

Who owns Horton Road over Congdon Creek?

It is owned by the County Highway Agency.