US Bridges

Meridian RD over HWY 064

Fair

Washington County, Oregon · 1.9 MI S of Stafford RD · Structure no. 09741 064 00127

Built
1969
56 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
398 ft
2 main spans
Daily traffic
5,133
2010 count
Owner
State
State Highway Agency

About this bridge

Meridian RD over HWY 064 is a steel continuous box beam or girders - single or spread carrying Meridian RD over HWY 064 in Washington County, Oregon. It was built in 1969, so it is 56 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 5,133 vehicles a day, roughly 11% of them trucks, projected to reach 5,627 by 2030. The structure is 398 ft (121.3 m) long and 51 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMeridian RD
CrossesHWY 064
Location1.9 MI S of Stafford RD
RouteCounty Highway 0
StateOregon
Coordinates45.37196, -122.74392
Functional classUrban 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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length398 ft (121.3 m)
Longest span177 ft (53.9 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,133 (2010)
Projected traffic5,627 by 2030
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Meridian RD over HWY 064 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Meridian RD over HWY 064 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 March 2024.

How much traffic does Meridian RD over HWY 064 carry?

About 5,133 vehicles per day (2010 count), of which roughly 11% are trucks.

How long is Meridian RD over HWY 064?

The structure is 398 ft (121.3 m) long with a longest span of 177 ft (53.9 m) and a deck 51 ft wide.

Who owns Meridian RD over HWY 064?

It is owned by the State Highway Agency.