US Bridges

Royal Ave over Amazon Creek

Fair

Lane County, Oregon · 029 MI W Eugene · Structure no. 39C007145500259

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
52 ft
2 main spans
Daily traffic
7,515
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Royal Ave over Amazon Creek is a prestressed concrete slab carrying Royal Ave over Amazon Creek in Lane County, Oregon. It was built in 1975, so it is 50 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 7,515 vehicles a day, roughly 10% of them trucks, projected to reach 10,714 by 2025. The structure is 52 ft (15.8 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRoyal Ave
CrossesAmazon Creek
Location029 MI W Eugene
RouteCity Street U1320
CountyLane County
StateOregon
Coordinates44.0702, -123.20103
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionJuly 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,515 (2020)
Projected traffic10,714 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$266,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Royal Ave over Amazon Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Royal Ave over Amazon 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 July 2024.

How much traffic does Royal Ave over Amazon Creek carry?

About 7,515 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Royal Ave over Amazon Creek?

The structure is 52 ft (15.8 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Royal Ave over Amazon Creek?

It is owned by the City or Municipal Highway Agency.