US Bridges

Or 99 (hwy 226) over Coast Fk Willamette R

Fair

Lane County, Oregon · 04.2 MI N HWY 001 JCT · Structure no. 00613C226 01575

Built
1949
76 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
342 ft
7 main spans
Daily traffic
3,706
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99 (hwy 226) over Coast Fk Willamette R is a concrete continuous tee beam carrying Or 99 (hwy 226) over Coast Fk Willamette R in Lane County, Oregon. It was built in 1949, so it is 76 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 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 3,706 vehicles a day, roughly 17% of them trucks, projected to reach 3,800 by 2042. The structure is 342 ft (104.2 m) long and 39 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesOr 99 (hwy 226)
CrossesCoast Fk Willamette R
Location04.2 MI N HWY 001 JCT
RouteState Highway 99
StateOregon
Coordinates43.7847, -123.06815
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length342 ft (104.2 m)
Longest span70 ft (21.3 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,706 (2022)
Projected traffic3,800 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 99 (hwy 226) over Coast Fk Willamette R built?

It was built in 1949, making it 76 years old in 2025.

What condition is Or 99 (hwy 226) 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 June 2023.

How much traffic does Or 99 (hwy 226) over Coast Fk Willamette R carry?

About 3,706 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Or 99 (hwy 226) over Coast Fk Willamette R?

The structure is 342 ft (104.2 m) long with a longest span of 70 ft (21.3 m) and a deck 39 ft wide.

Who owns Or 99 (hwy 226) over Coast Fk Willamette R?

It is owned by the State Highway Agency.