US Bridges

Morgan Street over Willow Creek EB

Fair

Morrow County, Oregon · 0.23 MI W of HWY 74 · Structure no. 49B10 000

Built
1977
48 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
350
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Morgan Street over Willow Creek EB is a prestressed concrete slab carrying Morgan Street over Willow Creek EB in Morrow County, Oregon. It was built in 1977, so it is 48 years old, younger 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.

It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 415 by 2025. The structure is 39 ft (11.9 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMorgan Street
CrossesWillow Creek EB
Location0.23 MI W of HWY 74
RouteCity Street 0
StateOregon
Coordinates45.36148, -119.55903
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2020)
Projected traffic415 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Morgan Street over Willow Creek EB built?

It was built in 1977, making it 48 years old in 2025.

What condition is Morgan Street over Willow Creek EB 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 August 2024.

How much traffic does Morgan Street over Willow Creek EB carry?

About 350 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Morgan Street over Willow Creek EB?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Morgan Street over Willow Creek EB?

It is owned by the City or Municipal Highway Agency.