US Bridges

N Lake Creek DR over Swale

Poor

Linn County, Oregon · 012 MI West HWY 99E · Structure no. 12238 012200115

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Concrete
Length
58 ft
3 main spans
Daily traffic
592
2021 count
Owner
County
County Highway Agency

About this bridge

N Lake Creek DR over Swale is a concrete channel beam carrying N Lake Creek DR over Swale in Linn County, Oregon. It was built in 1960, so it is 65 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.

It carries about 592 vehicles a day, roughly 10% of them trucks, projected to reach 824 by 2041. The structure is 58 ft (17.7 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesN Lake Creek DR
CrossesSwale
Location012 MI West HWY 99E
RouteCounty Highway A0479
StateOregon
Coordinates44.54219, -123.13153
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span18 ft (5.5 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic592 (2021)
Projected traffic824 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed2.5 mi (4 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$387,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Lake Creek DR over Swale built?

It was built in 1960, making it 65 years old in 2025.

What condition is N Lake Creek DR over Swale 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 October 2024.

How much traffic does N Lake Creek DR over Swale carry?

About 592 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is N Lake Creek DR over Swale?

The structure is 58 ft (17.7 m) long with a longest span of 18 ft (5.5 m) and a deck 38 ft wide.

Who owns N Lake Creek DR over Swale?

It is owned by the County Highway Agency.