US Bridges

Long ST over Ames Creek

Fair

Linn County, Oregon · 0.10MI E.Of JCT HWY228&20 · Structure no. 043B12000000014

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
3,399
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Long ST over Ames Creek is a prestressed concrete slab carrying Long ST over Ames Creek in Linn County, Oregon. It was built in 1960, so it is 65 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 3,399 vehicles a day, roughly 10% of them trucks, projected to reach 5,150 by 2041. The structure is 24 ft (7.3 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLong ST
CrossesAmes Creek
Location0.10MI E.Of JCT HWY228&20
RouteCity Street 0
StateOregon
Coordinates44.39626, -122.73336
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width57 ft (17.4 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,399 (2021)
Projected traffic5,150 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Long ST over Ames Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Long ST over Ames 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 2023.

How much traffic does Long ST over Ames Creek carry?

About 3,399 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Long ST over Ames Creek?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 57 ft wide.

Who owns Long ST over Ames Creek?

It is owned by the City or Municipal Highway Agency.