US Bridges

Elliot Creek Road over Slate Creek

Good

Josephine County, Oregon · T37S-R7W-S10 Josephine CO · Structure no. 21585 365500004

Built
2012
13 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
37
2020 count
Owner
County
County Highway Agency

About this bridge

Elliot Creek Road over Slate Creek is a prestressed concrete slab carrying Elliot Creek Road over Slate Creek in Josephine County, Oregon. It was built in 2012, so it is 13 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 37 vehicles a day, roughly 10% of them trucks, projected to reach 43 by 2025. The structure is 80 ft (24.4 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesElliot Creek Road
CrossesSlate Creek
LocationT37S-R7W-S10 Josephine CO
RouteCounty Highway C3655
StateOregon
Coordinates42.36366, -123.51143
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2020)
Projected traffic43 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Elliot Creek Road over Slate Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Elliot Creek Road over Slate 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 October 2024.

How much traffic does Elliot Creek Road over Slate Creek carry?

About 37 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Elliot Creek Road over Slate Creek?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Elliot Creek Road over Slate Creek?

It is owned by the County Highway Agency.