US Bridges

Gazley RD CR#35 over South Umpqua River

Fair

Douglas County, Oregon · 1.0 MI N of Canyonville · Structure no. 19C170003500025

Built
1977
48 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
331 ft
3 main spans
Daily traffic
1,182
2020 count
Owner
County
County Highway Agency

About this bridge

Gazley RD CR#35 over South Umpqua River is a prestressed concrete stringer/multi-beam or girder carrying Gazley RD CR#35 over South Umpqua River in Douglas County, Oregon. It was built in 1977, so it is 48 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 1,182 vehicles a day, roughly 5% of them trucks, projected to reach 1,337 by 2025. The structure is 331 ft (100.9 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesGazley RD CR#35
CrossesSouth Umpqua River
Location1.0 MI N of Canyonville
RouteCounty Highway C0035
StateOregon
Coordinates42.94361, -123.28588
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length331 ft (100.9 m)
Longest span124 ft (37.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,182 (2020)
Projected traffic1,337 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gazley RD CR#35 over South Umpqua River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Gazley RD CR#35 over South Umpqua River 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 June 2023.

How much traffic does Gazley RD CR#35 over South Umpqua River carry?

About 1,182 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Gazley RD CR#35 over South Umpqua River?

The structure is 331 ft (100.9 m) long with a longest span of 124 ft (37.8 m) and a deck 31 ft wide.

Who owns Gazley RD CR#35 over South Umpqua River?

It is owned by the County Highway Agency.