US Bridges

US 30 (hwy 449) over Benson Creek

Good

Malheur County, Oregon · 1.1 Mi. N. Jct. I-84 · Structure no. 01648A449 01003

Built
1957
68 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
732
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 (hwy 449) over Benson Creek is a concrete continuous tee beam carrying US 30 (hwy 449) over Benson Creek in Malheur County, Oregon. It was built in 1957, so it is 68 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 732 vehicles a day, roughly 14% of them trucks, projected to reach 800 by 2042. The structure is 85 ft (25.9 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 30 (hwy 449)
CrossesBenson Creek
Location1.1 Mi. N. Jct. I-84
RouteU.S. Route 30
CountyMalheur County
StateOregon
Coordinates44.3007, -117.227
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span52 ft (15.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic732 (2022)
Projected traffic800 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$435,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 (hwy 449) over Benson Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is US 30 (hwy 449) over Benson Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does US 30 (hwy 449) over Benson Creek carry?

About 732 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US 30 (hwy 449) over Benson Creek?

The structure is 85 ft (25.9 m) long with a longest span of 52 ft (15.8 m) and a deck 28 ft wide.

Who owns US 30 (hwy 449) over Benson Creek?

It is owned by the State Highway Agency.