US Bridges

Or 229 (hwy 181) over Depot Creek

PoorPosted for load

Lincoln County, Oregon · 062 MI S Siletz · Structure no. 09048 181 02964

Built
1963
62 years old
Condition
Poor
inspected June 2023
Type
Slab
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
3,605
2022 count
Owner
State
State Highway Agency

About this bridge

Or 229 (hwy 181) over Depot Creek is a prestressed concrete slab carrying Or 229 (hwy 181) over Depot Creek in Lincoln 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 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 other load-capacity restriction.

It carries about 3,605 vehicles a day, roughly 12% of them trucks, projected to reach 3,900 by 2042. The structure is 75 ft (22.9 m) long and 35 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

Location

Open in Google Maps
CarriesOr 229 (hwy 181)
CrossesDepot Creek
Location062 MI S Siletz
RouteState Highway 229
CountyLincoln County
StateOregon
Coordinates44.65604, -123.95291
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,605 (2022)
Projected traffic3,900 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41.6 mi (67 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 Depot Creek built?

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

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

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

About 3,605 vehicles per day (2022 count), of which roughly 12% are trucks.

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

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

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

It is owned by the State Highway Agency.