US Bridges

Lacomb Road over Beaver Creek

Fair

Linn County, Oregon · 037 MI East of Brewster · Structure no. 11988 020L00374

Built
1969
56 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
61 ft
2 main spans
Daily traffic
2,832
2021 count
Owner
County
County Highway Agency

About this bridge

Lacomb Road over Beaver Creek is a prestressed concrete slab carrying Lacomb Road over Beaver Creek in Linn County, Oregon. It was built in 1969, so it is 56 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 5 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 2,832 vehicles a day, roughly 10% of them trucks, projected to reach 3,966 by 2041. The structure is 61 ft (18.6 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLacomb Road
CrossesBeaver Creek
Location037 MI East of Brewster
RouteCounty Highway A0490
CountyLinn County
StateOregon
Coordinates44.57716, -122.79312
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width36 ft (10.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,832 (2021)
Projected traffic3,966 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Lacomb Road over Beaver Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Lacomb Road over Beaver 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 Lacomb Road over Beaver Creek carry?

About 2,832 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Lacomb Road over Beaver Creek?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns Lacomb Road over Beaver Creek?

It is owned by the County Highway Agency.