US Bridges

Kappler RD over Milton Creek

Good

Columbia County, Oregon · 002 MI South of Yankton · Structure no. 13701A108300527

Built
1985
40 years old
Condition
Good
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
843
2020 count
Owner
County
County Highway Agency

About this bridge

Kappler RD over Milton Creek is a prestressed concrete tee beam carrying Kappler RD over Milton Creek in Columbia County, Oregon. It was built in 1985, so it is 40 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 843 vehicles a day, roughly 10% of them trucks, projected to reach 953 by 2025. The structure is 102 ft (31.1 m) long and 31 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesKappler RD
CrossesMilton Creek
Location002 MI South of Yankton
RouteCounty Highway A0745
StateOregon
Coordinates45.86409, -122.88799
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating9.6 US tons
Inventory rating7.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic843 (2020)
Projected traffic953 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 Kappler RD over Milton Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Kappler RD over Milton Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Kappler RD over Milton Creek carry?

About 843 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Kappler RD over Milton Creek?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.

Who owns Kappler RD over Milton Creek?

It is owned by the County Highway Agency.