US Bridges

Loganberry Lane over Small Stream

Poor

Yamhill County, Oregon · 300 MI SE Sheridan · Structure no. 11812 000

Built
1969
56 years old
Condition
Poor
inspected September 2024
Type
Slab
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
219
2020 count
Owner
County
County Highway Agency

About this bridge

Loganberry Lane over Small Stream is a prestressed concrete slab carrying Loganberry Lane over Small Stream in Yamhill County, Oregon. It was built in 1969, so it is 56 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 219 vehicles a day, roughly 20% of them trucks, projected to reach 244 by 2025. The structure is 33 ft (10.1 m) long and 21 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesLoganberry Lane
CrossesSmall Stream
Location300 MI SE Sheridan
RouteCounty Highway C0423
StateOregon
Coordinates45.07674, -123.33994
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2020)
Projected traffic244 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$220,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Loganberry Lane over Small Stream built?

It was built in 1969, making it 56 years old in 2025.

What condition is Loganberry Lane over Small Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Loganberry Lane over Small Stream carry?

About 219 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Loganberry Lane over Small Stream?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 21 ft wide.

Who owns Loganberry Lane over Small Stream?

It is owned by the County Highway Agency.