US Bridges

Old HWY 30 over Beaver Creek

FairPosted for load

Columbia County, Oregon · 006 MI W HWY 30 JCT · Structure no. 00142 414700928

Built
1918
107 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
70 ft
2 main spans
Daily traffic
759
2020 count
Owner
County
County Highway Agency

About this bridge

Old HWY 30 over Beaver Creek is a concrete continuous tee beam carrying Old HWY 30 over Beaver Creek in Columbia County, Oregon. It was built in 1918, so it is 107 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. Its operating status is: posted for load restriction.

It carries about 759 vehicles a day, roughly 5% of them trucks, projected to reach 859 by 2025. The structure is 70 ft (21.3 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOld HWY 30
CrossesBeaver Creek
Location006 MI W HWY 30 JCT
RouteCounty Highway A0752
CountyColumbia County
StateOregon
Coordinates46.09878, -123.08024
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.1 US tons
Inventory rating9.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length70 ft (21.3 m)
Longest span35 ft (10.7 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic759 (2020)
Projected traffic859 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$359,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 30 over Beaver Creek built?

It was built in 1918, making it 107 years old in 2025.

What condition is Old HWY 30 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 May 2024.

How much traffic does Old HWY 30 over Beaver Creek carry?

About 759 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Old HWY 30 over Beaver Creek?

The structure is 70 ft (21.3 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns Old HWY 30 over Beaver Creek?

It is owned by the County Highway Agency.