US Bridges

Bullock RD over Umpqua River

Fair

Douglas County, Oregon · 13.0 MI NW of Sutherlin · Structure no. 19C358 57A 015

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
725 ft
5 main spans
Daily traffic
643
2020 count
Owner
County
County Highway Agency

About this bridge

Bullock RD over Umpqua River is a prestressed concrete stringer/multi-beam or girder carrying Bullock RD over Umpqua River in Douglas County, Oregon. It was built in 1986, so it is 39 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 643 vehicles a day, roughly 5% of them trucks, projected to reach 728 by 2025. The structure is 725 ft (221 m) long and 31 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

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CarriesBullock RD
CrossesUmpqua River
Location13.0 MI NW of Sutherlin
RouteCounty Highway C057A
CountyDouglas County
StateOregon
Coordinates43.47963, -123.47865
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length725 ft (221 m)
Longest span144 ft (43.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic643 (2020)
Projected traffic728 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 Bullock RD over Umpqua River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Bullock RD over 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 October 2024.

How much traffic does Bullock RD over Umpqua River carry?

About 643 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Bullock RD over Umpqua River?

The structure is 725 ft (221 m) long with a longest span of 144 ft (43.9 m) and a deck 31 ft wide.

Who owns Bullock RD over Umpqua River?

It is owned by the County Highway Agency.