US Bridges

HWY 194 over South Fork Ash Creek

FairPosted for load

Polk County, Oregon · 002 MI W Monmouth · Structure no. 10261A194 00627

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
57 ft
3 main spans
Daily traffic
1,624
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 194 over South Fork Ash Creek is a prestressed concrete slab carrying HWY 194 over South Fork Ash Creek in Polk County, Oregon. It was built in 1966, so it is 59 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 5 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 other load-capacity restriction.

It carries about 1,624 vehicles a day, roughly 12% of them trucks, projected to reach 1,700 by 2042. The structure is 57 ft (17.4 m) long and 45 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesHWY 194
CrossesSouth Fork Ash Creek
Location002 MI W Monmouth
RouteState Highway 194
StateOregon
Coordinates44.84214, -123.24774
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,624 (2022)
Projected traffic1,700 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 HWY 194 over South Fork Ash Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is HWY 194 over South Fork Ash 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 June 2024.

How much traffic does HWY 194 over South Fork Ash Creek carry?

About 1,624 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is HWY 194 over South Fork Ash Creek?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 45 ft wide.

Who owns HWY 194 over South Fork Ash Creek?

It is owned by the State Highway Agency.