US Bridges

Mayger Road over Beaver Creek

Poor

Columbia County, Oregon · 035 MI NE Clatskanie · Structure no. 13809A413400014

Built
1961
64 years old
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete
Length
121 ft
4 main spans
Daily traffic
1,339
2020 count
Owner
County
County Highway Agency

About this bridge

Mayger Road over Beaver Creek is a concrete tee beam carrying Mayger Road over Beaver Creek in Columbia County, Oregon. It was built in 1961, so it is 64 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,339 vehicles a day, roughly 10% of them trucks, projected to reach 1,514 by 2025. The structure is 121 ft (36.9 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMayger Road
CrossesBeaver Creek
Location035 MI NE Clatskanie
RouteCounty Highway A0753
CountyColumbia County
StateOregon
Coordinates46.1317, -123.16405
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length121 ft (36.9 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,339 (2020)
Projected traffic1,514 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Mayger Road over Beaver Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Mayger Road over Beaver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Mayger Road over Beaver Creek carry?

About 1,339 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Mayger Road over Beaver Creek?

The structure is 121 ft (36.9 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns Mayger Road over Beaver Creek?

It is owned by the County Highway Agency.