US Bridges

Grant Creek RD over Big Elk Creek

FairPosted for load

Lincoln County, Oregon · 005 MI West of Harlan · Structure no. 12166A61001 017

Built
1955
70 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
105 ft
3 main spans
Daily traffic
123
2020 count
Owner
County
County Highway Agency

About this bridge

Grant Creek RD over Big Elk Creek is a concrete continuous tee beam carrying Grant Creek RD over Big Elk Creek in Lincoln County, Oregon. It was built in 1955, so it is 70 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 6 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 load restriction.

It carries about 123 vehicles a day, roughly 10% of them trucks, projected to reach 218 by 2040. The structure is 105 ft (32 m) long and 17 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesGrant Creek RD
CrossesBig Elk Creek
Location005 MI West of Harlan
RouteCounty Highway 0
StateOregon
Coordinates44.54066, -123.71391
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length105 ft (32 m)
Longest span64 ft (19.5 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic123 (2020)
Projected traffic218 by 2040
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$538,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Grant Creek RD over Big Elk Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Grant Creek RD over Big Elk 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 September 2024.

How much traffic does Grant Creek RD over Big Elk Creek carry?

About 123 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Grant Creek RD over Big Elk Creek?

The structure is 105 ft (32 m) long with a longest span of 64 ft (19.5 m) and a deck 17 ft wide.

Who owns Grant Creek RD over Big Elk Creek?

It is owned by the County Highway Agency.