US Bridges

SR 16 over Tyler ST - Snake Lake

Fair

Pierce County, Washington · 1.6 N JCT I-5 · Structure no. 0009415B0000000

Built
1972
53 years old, rebuilt 2006
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
512 ft
4 main spans
Daily traffic
59,613
2023 count
Owner
State
State Highway Agency

About this bridge

SR 16 over Tyler ST - Snake Lake is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 16 over Tyler ST - Snake Lake in Pierce County, Washington. It was built in 1972 and reconstructed in 2006, 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 59,613 vehicles a day, roughly 5% of them trucks, projected to reach 81,662 by 2039. The structure is 512 ft (156.1 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 16
CrossesTyler ST - Snake Lake
Location1.6 N JCT I-5
RouteState Highway 16
Coordinates47.23469, -122.49097
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length512 ft (156.1 m)
Longest span136 ft (41.5 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,613 (2023)
Projected traffic81,662 by 2039
Trucks5%
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 NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$17 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 16 over Tyler ST - Snake Lake built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2006.

What condition is SR 16 over Tyler ST - Snake Lake 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 July 2024.

How much traffic does SR 16 over Tyler ST - Snake Lake carry?

About 59,613 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 16 over Tyler ST - Snake Lake?

The structure is 512 ft (156.1 m) long with a longest span of 136 ft (41.5 m) and a deck 71 ft wide.

Who owns SR 16 over Tyler ST - Snake Lake?

It is owned by the State Highway Agency.