US Bridges

Stoltz Hill RD over Oak Creek

Fair

Linn County, Oregon · 008 MI West CR 777 · Structure no. 12629 073900083

Built
1965
60 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
1,030
2021 count
Owner
County
County Highway Agency

About this bridge

Stoltz Hill RD over Oak Creek is a prestressed concrete slab carrying Stoltz Hill RD over Oak Creek in Linn County, Oregon. It was built in 1965, so it is 60 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 1,030 vehicles a day, roughly 15% of them trucks, projected to reach 1,442 by 2041. The structure is 50 ft (15.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStoltz Hill RD
CrossesOak Creek
Location008 MI West CR 777
RouteCounty Highway A0493
StateOregon
Coordinates44.51562, -122.92609
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,030 (2021)
Projected traffic1,442 by 2041
Trucks15%
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 Stoltz Hill RD over Oak Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Stoltz Hill RD over Oak 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 June 2023.

How much traffic does Stoltz Hill RD over Oak Creek carry?

About 1,030 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Stoltz Hill RD over Oak Creek?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Stoltz Hill RD over Oak Creek?

It is owned by the County Highway Agency.