US Bridges

St. Paul HWY over Case Creek

PoorPosted for load

Marion County, Oregon · 01.2 Mi.Of Butteville Rd. · Structure no. 47C04 008 00000

Built
1966
59 years old
Condition
Poor
inspected August 2024
Type
Slab
Wood or Timber
Length
77 ft
4 main spans
Daily traffic
1,454
2020 count
Owner
County
County Highway Agency

About this bridge

St. Paul HWY over Case Creek is a wood or timber slab carrying St. Paul HWY over Case Creek in Marion County, Oregon. It was built in 1966, 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 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. Its operating status is: posted for load restriction.

It carries about 1,454 vehicles a day, roughly 7% of them trucks, projected to reach 1,634 by 2025. The structure is 77 ft (23.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSt. Paul HWY
CrossesCase Creek
Location01.2 Mi.Of Butteville Rd.
RouteCounty Highway A0598
StateOregon
Coordinates45.20033, -122.88544
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,454 (2020)
Projected traffic1,634 by 2025
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Case Creek built?

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

What condition is St. Paul HWY over Case Creek 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 August 2024.

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

About 1,454 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is St. Paul HWY over Case Creek?

The structure is 77 ft (23.5 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns St. Paul HWY over Case Creek?

It is owned by the County Highway Agency.