US Bridges

Greenburg Road over Ash Creek

Fair

Washington County, Oregon · 001 MI South HWY 217 · Structure no. 67T009920700000

Built
1989
36 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
48 ft
2 main spans
Daily traffic
24,002
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Greenburg Road over Ash Creek is a prestressed concrete slab carrying Greenburg Road over Ash Creek in Washington County, Oregon. It was built in 1989, so it is 36 years old, younger 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 24,002 vehicles a day, roughly 10% of them trucks, projected to reach 34,637 by 2025. The structure is 48 ft (14.6 m) long and 61 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesGreenburg Road
CrossesAsh Creek
Location001 MI South HWY 217
RouteCity Street C0000
CountyWashington County
StateOregon
Coordinates45.4405, -122.77982
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
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 rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length48 ft (14.6 m)
Longest span22 ft (6.7 m)
Deck width61 ft (18.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,002 (2020)
Projected traffic34,637 by 2025
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Greenburg Road over Ash Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Greenburg Road over Ash 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 July 2024.

How much traffic does Greenburg Road over Ash Creek carry?

About 24,002 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Greenburg Road over Ash Creek?

The structure is 48 ft (14.6 m) long with a longest span of 22 ft (6.7 m) and a deck 61 ft wide.

Who owns Greenburg Road over Ash Creek?

It is owned by the City or Municipal Highway Agency.