US Bridges

NB I-5 over NE 117th Salmon Ck Path

Good

Clark County, Washington · 4.1 N JCT SR 500 · Structure no. 0016610A0000000

Built
2005
20 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
427 ft
3 main spans
Daily traffic
40,791
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-5 over NE 117th Salmon Ck Path is a prestressed concrete continuous stringer/multi-beam or girder carrying NB I-5 over NE 117th Salmon Ck Path in Clark County, Washington. It was built in 2005, so it is 20 years old, younger than the Washington average of 49.8 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 40,791 vehicles a day, roughly 8% of them trucks, projected to reach 61,880 by 2039. The structure is 427 ft (130.1 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB I-5
CrossesNE 117th Salmon Ck Path
Location4.1 N JCT SR 500
RouteInterstate 5
Coordinates45.70531, -122.65469
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating57 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length427 ft (130.1 m)
Longest span155 ft (47.2 m)
Deck width71 ft (21.6 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,791 (2023)
Projected traffic61,880 by 2039
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$14.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NB I-5 over NE 117th Salmon Ck Path built?

It was built in 2005, making it 20 years old in 2025.

What condition is NB I-5 over NE 117th Salmon Ck Path 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 February 2023.

How much traffic does NB I-5 over NE 117th Salmon Ck Path carry?

About 40,791 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is NB I-5 over NE 117th Salmon Ck Path?

The structure is 427 ft (130.1 m) long with a longest span of 155 ft (47.2 m) and a deck 71 ft wide.

Who owns NB I-5 over NE 117th Salmon Ck Path?

It is owned by the State Highway Agency.