US Bridges

HWY 1NB Conn over I-5 (hwy 001)

Fair

Lane County, Oregon · Ncl Eugene · Structure no. 20060 001 19546

Built
2008
17 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
2,067 ft
10 main spans
Daily traffic
20,890
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 1NB Conn over I-5 (hwy 001) is a prestressed concrete continuous box beam or girders - multiple carrying HWY 1NB Conn over I-5 (hwy 001) in Lane County, Oregon. It was built in 2008, so it is 17 years old, younger 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 6 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 20,890 vehicles a day, roughly 11% of them trucks, projected to reach 14,300 by 2030. The structure is 2,067 ft (630 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHWY 1NB Conn
CrossesI-5 (hwy 001)
LocationNcl Eugene
RouteInterstate 5
CountyLane County
StateOregon
Coordinates44.0836, -123.0472
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHL 93
Structure length2,067 ft (630 m)
Longest span279 ft (85 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,890 (2022)
Projected traffic14,300 by 2030
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY 1NB Conn over I-5 (hwy 001) built?

It was built in 2008, making it 17 years old in 2025.

What condition is HWY 1NB Conn over I-5 (hwy 001) 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 March 2023.

How much traffic does HWY 1NB Conn over I-5 (hwy 001) carry?

About 20,890 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is HWY 1NB Conn over I-5 (hwy 001)?

The structure is 2,067 ft (630 m) long with a longest span of 279 ft (85 m) and a deck 45 ft wide.

Who owns HWY 1NB Conn over I-5 (hwy 001)?

It is owned by the State Highway Agency.