US Bridges

Donald Road over Senecal Creek

Fair

Marion County, Oregon · 01.5 East of Donald · Structure no. 05132A010 00000

Built
1963
62 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
86 ft
3 main spans
Daily traffic
5,223
2022 count
Owner
County
County Highway Agency

About this bridge

Donald Road over Senecal Creek is a concrete tee beam carrying Donald Road over Senecal Creek in Marion County, Oregon. It was built in 1963, so it is 62 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 5,223 vehicles a day, roughly 24% of them trucks, projected to reach 5,500 by 2042. The structure is 86 ft (26.2 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesDonald Road
CrossesSenecal Creek
Location01.5 East of Donald
RouteCounty Highway A0601
CountyMarion County
StateOregon
Coordinates45.21608, -122.8059
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating60 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,223 (2022)
Projected traffic5,500 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Donald Road over Senecal Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Donald Road over Senecal 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 Donald Road over Senecal Creek carry?

About 5,223 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Donald Road over Senecal Creek?

The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns Donald Road over Senecal Creek?

It is owned by the County Highway Agency.