US Bridges

US 20 (hwy 007) over Chimney Crk (10th Xing)

Good

Malheur County, Oregon · 057 MI E Harney CO Line · Structure no. 19907 007 18581

Built
2005
20 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
1,475
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 007) over Chimney Crk (10th Xing) is a prestressed concrete slab carrying US 20 (hwy 007) over Chimney Crk (10th Xing) in Malheur County, Oregon. It was built in 2005, so it is 20 years old, younger 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 1,475 vehicles a day, roughly 28% of them trucks, projected to reach 1,600 by 2042. The structure is 81 ft (24.8 m) long and 44 ft wide. If it were closed, the detour would be 69 mi (111 km).

CarriesUS 20 (hwy 007)
CrossesChimney Crk (10th Xing)
Location057 MI E Harney CO Line
RouteU.S. Route 20
StateOregon
Coordinates43.7675, -118.1392
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length81 ft (24.8 m)
Longest span81 ft (24.8 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,475 (2022)
Projected traffic1,600 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed69 mi (111 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 (hwy 007) over Chimney Crk (10th Xing) built?

It was built in 2005, making it 20 years old in 2025.

What condition is US 20 (hwy 007) over Chimney Crk (10th Xing) 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 June 2024.

How much traffic does US 20 (hwy 007) over Chimney Crk (10th Xing) carry?

About 1,475 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 20 (hwy 007) over Chimney Crk (10th Xing)?

The structure is 81 ft (24.8 m) long with a longest span of 81 ft (24.8 m) and a deck 44 ft wide.

Who owns US 20 (hwy 007) over Chimney Crk (10th Xing)?

It is owned by the State Highway Agency.