US Bridges

Or 99E (hwy 58) over Calapooia Bottoms No. 1

Fair

Linn County, Oregon · 020 MI S Tangent · Structure no. 00553A058 01072

Built
1954
71 years old
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
76 ft
4 main spans
Daily traffic
3,351
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99E (hwy 58) over Calapooia Bottoms No. 1 is a concrete channel beam carrying Or 99E (hwy 58) over Calapooia Bottoms No. 1 in Linn County, Oregon. It was built in 1954, so it is 71 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 3,351 vehicles a day, roughly 15% of them trucks, projected to reach 5,500 by 2042. The structure is 76 ft (23.2 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesOr 99E (hwy 58)
CrossesCalapooia Bottoms No. 1
Location020 MI S Tangent
RouteState Highway 99
CountyLinn County
StateOregon
Coordinates44.5139, -123.10866
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,351 (2022)
Projected traffic5,500 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

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 99E (hwy 58) over Calapooia Bottoms No. 1 built?

It was built in 1954, making it 71 years old in 2025.

What condition is Or 99E (hwy 58) over Calapooia Bottoms No. 1 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 August 2024.

How much traffic does Or 99E (hwy 58) over Calapooia Bottoms No. 1 carry?

About 3,351 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Or 99E (hwy 58) over Calapooia Bottoms No. 1?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 33 ft wide.

Who owns Or 99E (hwy 58) over Calapooia Bottoms No. 1?

It is owned by the State Highway Agency.