US Bridges

HWY 081 (or 99E) over Beaver Creek

Fair

Clackamas County, Oregon · 5.3 MI SW Oregon City Cc · Structure no. 00580 01E 01787

Built
1929
96 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
292 ft
9 main spans
Daily traffic
23,127
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 081 (or 99E) over Beaver Creek is a concrete continuous tee beam carrying HWY 081 (or 99E) over Beaver Creek in Clackamas County, Oregon. It was built in 1929, so it is 96 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.

It carries about 23,127 vehicles a day, roughly 4% of them trucks, projected to reach 29,400 by 2042. The structure is 292 ft (89 m) long and 57 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesHWY 081 (or 99E)
CrossesBeaver Creek
Location5.3 MI SW Oregon City Cc
RouteState Highway 99
StateOregon
Coordinates45.29787, -122.6584
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 rating24.7 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length292 ft (89 m)
Longest span60 ft (18.3 m)
Deck width57 ft (17.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,127 (2022)
Projected traffic29,400 by 2042
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

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 HWY 081 (or 99E) over Beaver Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is HWY 081 (or 99E) over Beaver 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 November 2024.

How much traffic does HWY 081 (or 99E) over Beaver Creek carry?

About 23,127 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is HWY 081 (or 99E) over Beaver Creek?

The structure is 292 ft (89 m) long with a longest span of 60 ft (18.3 m) and a deck 57 ft wide.

Who owns HWY 081 (or 99E) over Beaver Creek?

It is owned by the State Highway Agency.