US Bridges

Irving Ave over Ravine

FairPosted for load

Clatsop County, Oregon · Irving at 33rd · Structure no. 07T02 000000140

Built
1951
74 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
201 ft
8 main spans
Daily traffic
1,811
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Irving Ave over Ravine is a wood or timber stringer/multi-beam or girder carrying Irving Ave over Ravine in Clatsop County, Oregon. It was built in 1951, so it is 74 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. Its operating status is: posted for load restriction.

It carries about 1,811 vehicles a day, roughly 15% of them trucks, projected to reach 1,991 by 2025. The structure is 201 ft (61.3 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIrving Ave
CrossesRavine
LocationIrving at 33rd
RouteCity Street U4360
StateOregon
Coordinates46.18829, -123.8075
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
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
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.7 US tons
Inventory rating20 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans8
Design loadUnknown
Structure length201 ft (61.3 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,811 (2020)
Projected traffic1,991 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Irving Ave over Ravine built?

It was built in 1951, making it 74 years old in 2025.

What condition is Irving Ave over Ravine 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 April 2023.

How much traffic does Irving Ave over Ravine carry?

About 1,811 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Irving Ave over Ravine?

The structure is 201 ft (61.3 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns Irving Ave over Ravine?

It is owned by the City or Municipal Highway Agency.