US Bridges

Saginaw Road East over Coast Fk Willamette R

Fair

Lane County, Oregon · 001 MI W I5 at Sag Exit · Structure no. 14782A220200010

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
311 ft
5 main spans
Daily traffic
3,020
2020 count
Owner
County
County Highway Agency

About this bridge

Saginaw Road East over Coast Fk Willamette R is a prestressed concrete stringer/multi-beam or girder carrying Saginaw Road East over Coast Fk Willamette R in Lane County, Oregon. It was built in 1965, so it is 60 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 3,020 vehicles a day, roughly 10% of them trucks, projected to reach 3,535 by 2025. The structure is 311 ft (94.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSaginaw Road East
CrossesCoast Fk Willamette R
Location001 MI W I5 at Sag Exit
RouteCounty Highway A0472
CountyLane County
StateOregon
Coordinates43.83263, -123.04238
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length311 ft (94.8 m)
Longest span73 ft (22.3 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,020 (2020)
Projected traffic3,535 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Saginaw Road East over Coast Fk Willamette R built?

It was built in 1965, making it 60 years old in 2025.

What condition is Saginaw Road East over Coast Fk Willamette R 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 September 2024.

How much traffic does Saginaw Road East over Coast Fk Willamette R carry?

About 3,020 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Saginaw Road East over Coast Fk Willamette R?

The structure is 311 ft (94.8 m) long with a longest span of 73 ft (22.3 m) and a deck 44 ft wide.

Who owns Saginaw Road East over Coast Fk Willamette R?

It is owned by the County Highway Agency.