US Bridges

Stafford RD over HWY 064

Fair

Clackamas County, Oregon · 6.0 MI S of Willamette R · Structure no. 09739 064C00332

Built
1970
55 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
14,000
2022 count
Owner
State
State Highway Agency

About this bridge

Stafford RD over HWY 064 is a steel continuous box beam or girders - single or spread carrying Stafford RD over HWY 064 in Clackamas County, Oregon. It was built in 1970, so it is 55 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 14,000 vehicles a day, roughly 8% of them trucks, projected to reach 97,700 by 2040. The structure is 398 ft (121.3 m) long and 73 ft wide.

CarriesStafford RD
CrossesHWY 064
Location6.0 MI S of Willamette R
RouteCounty Highway 0
StateOregon
Coordinates45.37011, -122.70599
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating52.1 US tons
Inventory rating40.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length398 ft (121.3 m)
Longest span174 ft (53 m)
Deck width73 ft (22.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2022)
Projected traffic97,700 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Stafford RD over HWY 064 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Stafford 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 Stafford RD over HWY 064 carry?

About 14,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Stafford RD over HWY 064?

The structure is 398 ft (121.3 m) long with a longest span of 174 ft (53 m) and a deck 73 ft wide.

Who owns Stafford RD over HWY 064?

It is owned by the State Highway Agency.