US Bridges

Lorane HWY over Spencer Creek

Good

Lane County, Oregon · 030 MI W of Eugene · Structure no. 014942125000609

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
103 ft
3 main spans
Daily traffic
2,493
2020 count
Owner
County
County Highway Agency

About this bridge

Lorane HWY over Spencer Creek is a prestressed concrete slab carrying Lorane HWY over Spencer Creek in Lane County, Oregon. It was built in 1991, so it is 34 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 2,493 vehicles a day, roughly 10% of them trucks, projected to reach 2,918 by 2025. The structure is 103 ft (31.4 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLorane HWY
CrossesSpencer Creek
Location030 MI W of Eugene
RouteCounty Highway A0449
StateOregon
Coordinates43.98816, -123.17793
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
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 rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 25 or greater
Structure length103 ft (31.4 m)
Longest span34 ft (10.4 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,493 (2020)
Projected traffic2,918 by 2025
Trucks10%
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 Lorane HWY over Spencer Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Lorane HWY over Spencer 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 July 2024.

How much traffic does Lorane HWY over Spencer Creek carry?

About 2,493 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Lorane HWY over Spencer Creek?

The structure is 103 ft (31.4 m) long with a longest span of 34 ft (10.4 m) and a deck 36 ft wide.

Who owns Lorane HWY over Spencer Creek?

It is owned by the County Highway Agency.