US Bridges

Baseline RD over Eightmile Creek

Good

Gilliam County, Oregon · 8.9 MI E of HWY 19 · Structure no. 24321 045400947

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
28
2020 count
Owner
County
County Highway Agency

About this bridge

Baseline RD over Eightmile Creek is a steel culvert carrying Baseline RD over Eightmile Creek in Gilliam County, Oregon. It was built in 2023, so it is 2 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 28 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2025. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 28 mi (45 km).

CarriesBaseline RD
CrossesEightmile Creek
Location8.9 MI E of HWY 19
RouteCounty Highway C0454
StateOregon
Coordinates45.4948, -120.0134
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2020)
Projected traffic28 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Baseline RD over Eightmile Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Baseline RD over Eightmile 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 November 2023.

How much traffic does Baseline RD over Eightmile Creek carry?

About 28 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Baseline RD over Eightmile Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3.2 m).

Who owns Baseline RD over Eightmile Creek?

It is owned by the County Highway Agency.