US Bridges

US 730 (hwy 2) over Juniper Pt Half Viaduct

FairPosted for load

Umatilla County, Oregon · 5.2 MI W Wash State LN · Structure no. 01629 002 19806

Built
1933
92 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
334 ft
12 main spans
Daily traffic
3,403
2022 count
Owner
State
State Highway Agency

About this bridge

US 730 (hwy 2) over Juniper Pt Half Viaduct is a concrete continuous stringer/multi-beam or girder carrying US 730 (hwy 2) over Juniper Pt Half Viaduct in Umatilla County, Oregon. It was built in 1933, so it is 92 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 other load-capacity restriction.

It carries about 3,403 vehicles a day, roughly 50% of them trucks, projected to reach 4,200 by 2042. The structure is 334 ft (101.8 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS 730 (hwy 2)
CrossesJuniper Pt Half Viaduct
Location5.2 MI W Wash State LN
RouteU.S. Route 730
CountyUmatilla County
StateOregon
Coordinates45.94979, -119.05994
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.1 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadH 15
Structure length334 ft (101.8 m)
Longest span29 ft (8.8 m)
Deck width19 ft (5.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,403 (2022)
Projected traffic4,200 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 730 (hwy 2) over Juniper Pt Half Viaduct built?

It was built in 1933, making it 92 years old in 2025.

What condition is US 730 (hwy 2) over Juniper Pt Half Viaduct 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 February 2024.

How much traffic does US 730 (hwy 2) over Juniper Pt Half Viaduct carry?

About 3,403 vehicles per day (2022 count), of which roughly 50% are trucks.

How long is US 730 (hwy 2) over Juniper Pt Half Viaduct?

The structure is 334 ft (101.8 m) long with a longest span of 29 ft (8.8 m) and a deck 19 ft wide.

Who owns US 730 (hwy 2) over Juniper Pt Half Viaduct?

It is owned by the State Highway Agency.