US Bridges

Or 229 (hwy 181) over Cedar Creek

Good

Lincoln County, Oregon · 015 MI S Summit · Structure no. 01972A181 01547

Built
1989
36 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
140 ft
2 main spans
Daily traffic
400
2022 count
Owner
State
State Highway Agency

About this bridge

Or 229 (hwy 181) over Cedar Creek is a prestressed concrete slab carrying Or 229 (hwy 181) over Cedar Creek in Lincoln County, Oregon. It was built in 1989, so it is 36 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 400 vehicles a day, roughly 17% of them trucks, projected to reach 540 by 2042. The structure is 140 ft (42.7 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesOr 229 (hwy 181)
CrossesCedar Creek
Location015 MI S Summit
RouteState Highway 229
StateOregon
Coordinates44.80054, -123.94743
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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length140 ft (42.7 m)
Longest span70 ft (21.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic540 by 2042
Trucks17%
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

OwnerState Highway Agency
Maintained byState 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 Or 229 (hwy 181) over Cedar Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Or 229 (hwy 181) over Cedar 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 June 2023.

How much traffic does Or 229 (hwy 181) over Cedar Creek carry?

About 400 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Or 229 (hwy 181) over Cedar Creek?

The structure is 140 ft (42.7 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns Or 229 (hwy 181) over Cedar Creek?

It is owned by the State Highway Agency.