US Bridges

Or 53 (hwy 46) over Mohler Oflow

Fair

Tillamook County, Oregon · 01.0 MI NE JCT HWY 53 101 · Structure no. 01371A046 01791

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
231 ft
5 main spans
Daily traffic
1,592
2022 count
Owner
State
State Highway Agency

About this bridge

Or 53 (hwy 46) over Mohler Oflow is a prestressed concrete slab carrying Or 53 (hwy 46) over Mohler Oflow in Tillamook County, Oregon. It was built in 1980, so it is 45 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 1,592 vehicles a day, roughly 9% of them trucks, projected to reach 1,800 by 2042. The structure is 231 ft (70.4 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesOr 53 (hwy 46)
CrossesMohler Oflow
Location01.0 MI NE JCT HWY 53 101
RouteState Highway 46
CountyTillamook County
StateOregon
Coordinates45.7084, -123.862
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,592 (2022)
Projected traffic1,800 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed11.8 mi (19 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 Or 53 (hwy 46) over Mohler Oflow built?

It was built in 1980, making it 45 years old in 2025.

What condition is Or 53 (hwy 46) over Mohler Oflow 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 May 2023.

How much traffic does Or 53 (hwy 46) over Mohler Oflow carry?

About 1,592 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Or 53 (hwy 46) over Mohler Oflow?

The structure is 231 ft (70.4 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Or 53 (hwy 46) over Mohler Oflow?

It is owned by the State Highway Agency.