US Bridges

Or 42 (hwy 035) over S. Umpqua Oflow

Fair

Douglas County, Oregon · 03.0 MI W HWY 001 JCT · Structure no. 01986A035 07413

Built
1976
49 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
21,604
2022 count
Owner
State
State Highway Agency

About this bridge

Or 42 (hwy 035) over S. Umpqua Oflow is a concrete continuous slab carrying Or 42 (hwy 035) over S. Umpqua Oflow in Douglas County, Oregon. It was built in 1976, so it is 49 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 21,604 vehicles a day, roughly 4% of them trucks, projected to reach 25,200 by 2042. The structure is 110 ft (33.5 m) long and 100 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesOr 42 (hwy 035)
CrossesS. Umpqua Oflow
Location03.0 MI W HWY 001 JCT
RouteState Highway 42
StateOregon
Coordinates43.13094, -123.40417
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width100 ft (30.5 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,604 (2022)
Projected traffic25,200 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Or 42 (hwy 035) over S. Umpqua Oflow built?

It was built in 1976, making it 49 years old in 2025.

What condition is Or 42 (hwy 035) over S. Umpqua Oflow 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 April 2024.

How much traffic does Or 42 (hwy 035) over S. Umpqua Oflow carry?

About 21,604 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Or 42 (hwy 035) over S. Umpqua Oflow?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 100 ft wide.

Who owns Or 42 (hwy 035) over S. Umpqua Oflow?

It is owned by the State Highway Agency.