US Bridges

Bunker Hill Road over Willow Creek EB

Good

Morrow County, Oregon · 0.10 MI W of HWY 74 · Structure no. 17384 059400000

Built
1996
29 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
171
2020 count
Owner
County
County Highway Agency

About this bridge

Bunker Hill Road over Willow Creek EB is a prestressed concrete slab carrying Bunker Hill Road over Willow Creek EB in Morrow County, Oregon. It was built in 1996, so it is 29 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 171 vehicles a day, projected to reach 199 by 2025. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesBunker Hill Road
CrossesWillow Creek EB
Location0.10 MI W of HWY 74
RouteCounty Highway 0
StateOregon
Coordinates45.39749, -119.61114
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic171 (2020)
Projected traffic199 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Bunker Hill Road over Willow Creek EB built?

It was built in 1996, making it 29 years old in 2025.

What condition is Bunker Hill Road over Willow Creek EB 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 August 2024.

How much traffic does Bunker Hill Road over Willow Creek EB carry?

About 171 vehicles per day (2020 count).

How long is Bunker Hill Road over Willow Creek EB?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 32 ft wide.

Who owns Bunker Hill Road over Willow Creek EB?

It is owned by the County Highway Agency.