US Bridges

East 11th Street over Hylebos Waterway

FairPosted for load

Pierce County, Washington · 4.2 N JCT I-5 · Structure no. 0002376A0000000

Built
1939
86 years old, rebuilt 2012
Condition
Fair
inspected September 2024
Type
Movable - Bascule
Steel
Length
947 ft
1 main span
Daily traffic
1,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

East 11th Street over Hylebos Waterway is a steel movable - bascule carrying East 11th Street over Hylebos Waterway in Pierce County, Washington. It was built in 1939 and reconstructed in 2012, so it is 86 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 2,000 by 2044. The structure is 947 ft (288.6 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesEast 11th Street
CrossesHylebos Waterway
Location4.2 N JCT I-5
RouteCity Street 50950
Coordinates47.27757, -122.39451
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+5 approach)
Design loadH 15
Structure length947 ft (288.6 m)
Longest span217 ft (66.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic2,000 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$11.2 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was East 11th Street over Hylebos Waterway built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2012.

What condition is East 11th Street over Hylebos Waterway 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 September 2024.

How much traffic does East 11th Street over Hylebos Waterway carry?

About 1,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is East 11th Street over Hylebos Waterway?

The structure is 947 ft (288.6 m) long with a longest span of 217 ft (66.1 m) and a deck 26 ft wide.

Who owns East 11th Street over Hylebos Waterway?

It is owned by the City or Municipal Highway Agency.