US Bridges

Wrentham Market RD over 15 MI Creek

Fair

Wasco County, Oregon · At Wrentham · Structure no. 65C01 004 00639

Built
1966
59 years old, rebuilt 1986
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
14
2020 count
Owner
County
County Highway Agency

About this bridge

Wrentham Market RD over 15 MI Creek is a prestressed concrete slab carrying Wrentham Market RD over 15 MI Creek in Wasco County, Oregon. It was built in 1966 and reconstructed in 1986, 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 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 14 vehicles a day, roughly 1% of them trucks, projected to reach 14 by 2025. The structure is 61 ft (18.6 m) long and 28 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesWrentham Market RD
Crosses15 MI Creek
LocationAt Wrentham
RouteCounty Highway 0
StateOregon
Coordinates45.5372, -120.992
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span57 ft (17.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (2020)
Projected traffic14 by 2025
Trucks1%
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

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 Wrentham Market RD over 15 MI Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1986.

What condition is Wrentham Market RD over 15 MI 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 August 2024.

How much traffic does Wrentham Market RD over 15 MI Creek carry?

About 14 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Wrentham Market RD over 15 MI Creek?

The structure is 61 ft (18.6 m) long with a longest span of 57 ft (17.4 m) and a deck 28 ft wide.

Who owns Wrentham Market RD over 15 MI Creek?

It is owned by the County Highway Agency.