US Bridges

S-S Ramp over NE 16th Ave

Good

Clark County, Washington · 5.3 N JCT SR 500 · Structure no. 0018311C0000000

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
434 ft
4 main spans
Daily traffic
5,884
2023 count
Owner
State
State Highway Agency

About this bridge

S-S Ramp over NE 16th Ave is a prestressed concrete continuous stringer/multi-beam or girder carrying S-S Ramp over NE 16th Ave in Clark County, Washington. It was built in 2014, so it is 11 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 5,884 vehicles a day, roughly 5% of them trucks, projected to reach 8,583 by 2039. The structure is 434 ft (132.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-S Ramp
CrossesNE 16th Ave
Location5.3 N JCT SR 500
RouteInterstate 5
Coordinates45.72156, -122.65614
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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length434 ft (132.3 m)
Longest span150 ft (45.7 m)
Deck width42 ft (12.8 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,884 (2023)
Projected traffic8,583 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-S Ramp over NE 16th Ave built?

It was built in 2014, making it 11 years old in 2025.

What condition is S-S Ramp over NE 16th Ave 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 September 2024.

How much traffic does S-S Ramp over NE 16th Ave carry?

About 5,884 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-S Ramp over NE 16th Ave?

The structure is 434 ft (132.3 m) long with a longest span of 150 ft (45.7 m) and a deck 42 ft wide.

Who owns S-S Ramp over NE 16th Ave?

It is owned by the State Highway Agency.