US Bridges

Stage Coach RD over Rock Creek

Fair

Lane County, Oregon · 099 SE Swisshome · Structure no. 39C502502000173

Built
1981
44 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
152
2020 count
Owner
County
County Highway Agency

About this bridge

Stage Coach RD over Rock Creek is a prestressed concrete slab carrying Stage Coach RD over Rock Creek 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 152 vehicles a day, projected to reach 177 by 2025. The structure is 100 ft (30.5 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesStage Coach RD
CrossesRock Creek
Location099 SE Swisshome
RouteCounty Highway C5020
CountyLane County
StateOregon
Coordinates44.02313, -123.6949
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152 (2020)
Projected traffic177 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 Stage Coach RD over Rock Creek built?

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

What condition is Stage Coach RD over Rock 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 August 2023.

How much traffic does Stage Coach RD over Rock Creek carry?

About 152 vehicles per day (2020 count).

How long is Stage Coach RD over Rock Creek?

The structure is 100 ft (30.5 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Stage Coach RD over Rock Creek?

It is owned by the County Highway Agency.