US Bridges

Or 99 (hwy 234) over Deer Creek

Fair

Douglas County, Oregon · 00.1 N JCT HWY 073 · Structure no. 02279A234 01710

Built
1937
88 years old, rebuilt 1967
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
250 ft
7 main spans
Daily traffic
14,285
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99 (hwy 234) over Deer Creek is a concrete continuous tee beam carrying Or 99 (hwy 234) over Deer Creek in Douglas County, Oregon. It was built in 1937 and reconstructed in 1967, so it is 88 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 5 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 14,285 vehicles a day, roughly 5% of them trucks, projected to reach 19,560 by 2030. The structure is 250 ft (76.2 m) long and 84 ft wide.

CarriesOr 99 (hwy 234)
CrossesDeer Creek
Location00.1 N JCT HWY 073
RouteState Highway 99
StateOregon
Coordinates43.21442, -123.34275
Functional classUrban Other Principal Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length250 ft (76.2 m)
Longest span70 ft (21.3 m)
Deck width84 ft (25.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,285 (2022)
Projected traffic19,560 by 2030
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 99 (hwy 234) over Deer Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1967.

What condition is Or 99 (hwy 234) over Deer 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 July 2024.

How much traffic does Or 99 (hwy 234) over Deer Creek carry?

About 14,285 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Or 99 (hwy 234) over Deer Creek?

The structure is 250 ft (76.2 m) long with a longest span of 70 ft (21.3 m) and a deck 84 ft wide.

Who owns Or 99 (hwy 234) over Deer Creek?

It is owned by the State Highway Agency.