US Bridges

Fourth Plain Blvd. over Np RY Sps RY & Access RD

FairPosted for load

Clark County, Washington · 1.7 N JCT I-5 · Structure no. 0006786A0000000

Built
1962
63 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
472 ft
2 main spans
Daily traffic
6,180
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fourth Plain Blvd. over Np RY Sps RY & Access RD is a steel continuous stringer/multi-beam or girder carrying Fourth Plain Blvd. over Np RY Sps RY & Access RD in Clark County, Washington. It was built in 1962, so it is 63 years old, older than the Washington average of 49.8 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. Its operating status is: posted for load restriction.

It carries about 6,180 vehicles a day, roughly 9% of them trucks, projected to reach 6,180 by 2039. The structure is 472 ft (143.9 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFourth Plain Blvd.
CrossesNp RY Sps RY & Access RD
Location1.7 N JCT I-5
RouteCity Street 501
CountyClark County
StateWashington
Coordinates45.64044, -122.68619
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length472 ft (143.9 m)
Longest span133 ft (40.5 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,180 (2016)
Projected traffic6,180 by 2039
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$17.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Fourth Plain Blvd. over Np RY Sps RY & Access RD built?

It was built in 1962, making it 63 years old in 2025.

What condition is Fourth Plain Blvd. over Np RY Sps RY & Access RD 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 December 2022.

How much traffic does Fourth Plain Blvd. over Np RY Sps RY & Access RD carry?

About 6,180 vehicles per day (2016 count), of which roughly 9% are trucks.

How long is Fourth Plain Blvd. over Np RY Sps RY & Access RD?

The structure is 472 ft (143.9 m) long with a longest span of 133 ft (40.5 m) and a deck 38 ft wide.

Who owns Fourth Plain Blvd. over Np RY Sps RY & Access RD?

It is owned by the City or Municipal Highway Agency.