US Bridges

Ferguson Road over Ferguson Creek

Good

Lane County, Oregon · 100 MI West Junction City · Structure no. 39C349350800922

Built
1979
46 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
338
2020 count
Owner
County
County Highway Agency

About this bridge

Ferguson Road over Ferguson Creek is a prestressed concrete slab carrying Ferguson Road over Ferguson Creek in Lane County, Oregon. It was built in 1979, so it is 46 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 338 vehicles a day, projected to reach 353 by 2025. The structure is 44 ft (13.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFerguson Road
CrossesFerguson Creek
Location100 MI West Junction City
RouteCounty Highway C3508
CountyLane County
StateOregon
Coordinates44.26338, -123.39176
Functional classRural Minor Collector

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span43 ft (13.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic338 (2020)
Projected traffic353 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 Ferguson Road over Ferguson Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Ferguson Road over Ferguson Creek 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 July 2024.

How much traffic does Ferguson Road over Ferguson Creek carry?

About 338 vehicles per day (2020 count).

How long is Ferguson Road over Ferguson Creek?

The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.

Who owns Ferguson Road over Ferguson Creek?

It is owned by the County Highway Agency.