US Bridges

Olympic DR NW over SR 16

Fair

Pierce County, Washington · 1.6 N JCT SR 16 Ar · Structure no. 0009245A0000000

Built
1972
53 years old, rebuilt 1996
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
207 ft
2 main spans
Daily traffic
22,899
2012 count
Owner
State
State Highway Agency

About this bridge

Olympic DR NW over SR 16 is a prestressed concrete continuous stringer/multi-beam or girder carrying Olympic DR NW over SR 16 in Pierce County, Washington. It was built in 1972 and reconstructed in 1996, so it is 53 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.

It carries about 22,899 vehicles a day, roughly 1% of them trucks, projected to reach 37,738 by 2036. The structure is 207 ft (63.1 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOlympic DR NW
CrossesSR 16
Location1.6 N JCT SR 16 Ar
RouteCounty Highway 0
Coordinates47.30511, -122.57678
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length207 ft (63.1 m)
Longest span101 ft (30.8 m)
Deck width79 ft (24.2 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,899 (2012)
Projected traffic37,738 by 2036
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$6.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Olympic DR NW over SR 16 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1996.

What condition is Olympic DR NW over SR 16 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 March 2024.

How much traffic does Olympic DR NW over SR 16 carry?

About 22,899 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Olympic DR NW over SR 16?

The structure is 207 ft (63.1 m) long with a longest span of 101 ft (30.8 m) and a deck 79 ft wide.

Who owns Olympic DR NW over SR 16?

It is owned by the State Highway Agency.