US Bridges

First Ave. over Necanicum Rv

Good

Clatsop County, Oregon · 0.2 MI W of US 101 · Structure no. 19264 000 00000

Built
2001
24 years old
Condition
Good
inspected April 2023
Type
Slab
Prestressed Concrete
Length
193 ft
3 main spans
Daily traffic
7,018
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

First Ave. over Necanicum Rv is a prestressed concrete slab carrying First Ave. over Necanicum Rv in Clatsop County, Oregon. It was built in 2001, so it is 24 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,018 vehicles a day, roughly 10% of them trucks, projected to reach 11,390 by 2025. The structure is 193 ft (58.8 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesFirst Ave.
CrossesNecanicum Rv
Location0.2 MI W of US 101
RouteCity Street C0000
CountyClatsop County
StateOregon
Coordinates45.99453, -123.92419
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating59.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length193 ft (58.8 m)
Longest span64 ft (19.5 m)
Deck width46 ft (14.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,018 (2020)
Projected traffic11,390 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$988,000
NavigationNo navigation control on waterway

Frequently asked questions

When was First Ave. over Necanicum Rv built?

It was built in 2001, making it 24 years old in 2025.

What condition is First Ave. over Necanicum Rv in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does First Ave. over Necanicum Rv carry?

About 7,018 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is First Ave. over Necanicum Rv?

The structure is 193 ft (58.8 m) long with a longest span of 64 ft (19.5 m) and a deck 46 ft wide.

Who owns First Ave. over Necanicum Rv?

It is owned by the City or Municipal Highway Agency.