US Bridges

St. Paul HWY over Champoeg Creek

Fair

Marion County, Oregon · 03.1 East of St. Paul · Structure no. 47C05 008 00000

Built
1968
57 years old
Condition
Fair
inspected August 2023
Type
Slab
Wood or Timber
Length
96 ft
5 main spans
Daily traffic
1,183
2020 count
Owner
County
County Highway Agency

About this bridge

St. Paul HWY over Champoeg Creek is a wood or timber slab carrying St. Paul HWY over Champoeg Creek in Marion County, Oregon. It was built in 1968, so it is 57 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 5 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 1,183 vehicles a day, roughly 11% of them trucks, projected to reach 1,328 by 2025. The structure is 96 ft (29.3 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesSt. Paul HWY
CrossesChampoeg Creek
Location03.1 East of St. Paul
RouteCounty Highway A0598
CountyMarion County
StateOregon
Coordinates45.20937, -122.91129
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 20
Structure length96 ft (29.3 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,183 (2020)
Projected traffic1,328 by 2025
Trucks11%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was St. Paul HWY over Champoeg Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is St. Paul HWY over Champoeg 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 2023.

How much traffic does St. Paul HWY over Champoeg Creek carry?

About 1,183 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is St. Paul HWY over Champoeg Creek?

The structure is 96 ft (29.3 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns St. Paul HWY over Champoeg Creek?

It is owned by the County Highway Agency.