US Bridges

Parvin Road over Lost Creek

FairPosted for load

Lane County, Oregon · 10 S HWY 58 at Dexter · Structure no. 39C643610700001

Built
1921
104 years old, rebuilt 1986
Condition
Fair
inspected October 2024
Type
Truss - Thru
Wood or Timber
Length
132 ft
1 main span
Daily traffic
371
2020 count
Owner
County
County Highway Agency

About this bridge

Parvin Road over Lost Creek is a wood or timber truss - thru carrying Parvin Road over Lost Creek in Lane County, Oregon. It was built in 1921 and reconstructed in 1986, so it is 104 years old, older 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. Its operating status is: posted for load restriction.

It carries about 371 vehicles a day, roughly 5% of them trucks, projected to reach 401 by 2025. The structure is 132 ft (40.2 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesParvin Road
CrossesLost Creek
Location10 S HWY 58 at Dexter
RouteCounty Highway C6122
CountyLane County
StateOregon
Coordinates43.89947, -122.82297
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating20.4 US tons
Inventory rating15.8 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1 (+3 approach)
Design loadH 10
Structure length132 ft (40.2 m)
Longest span75 ft (22.9 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4 m)
Vertical clearance over deck12 ft (3.7 m)

Traffic and service

Average daily traffic371 (2020)
Projected traffic401 by 2025
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$676,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Parvin Road over Lost Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1986.

What condition is Parvin Road over Lost 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 October 2024.

How much traffic does Parvin Road over Lost Creek carry?

About 371 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Parvin Road over Lost Creek?

The structure is 132 ft (40.2 m) long with a longest span of 75 ft (22.9 m) and a deck 14 ft wide.

Who owns Parvin Road over Lost Creek?

It is owned by the County Highway Agency.