US Bridges

Lynch Creek RD E over Lynch Creek

Fair

Pierce County, Washington · .57 N JCT SR161 · Structure no. 081697000000000

Built
1954
71 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
170 ft
1 main span
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

Lynch Creek RD E over Lynch Creek is a concrete tee beam carrying Lynch Creek RD E over Lynch Creek in Pierce County, Washington. It was built in 1954, so it is 71 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 250 by 2042. The structure is 170 ft (51.8 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLynch Creek RD E
CrossesLynch Creek
Location.57 N JCT SR161
RouteCounty Highway 71610
Coordinates46.87588, -122.26132
Functional classRural Local

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating33 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 15
Structure length170 ft (51.8 m)
Longest span50 ft (15.2 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic250 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$89,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lynch Creek RD E over Lynch Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Lynch Creek RD E over Lynch Creek 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 June 2024.

How much traffic does Lynch Creek RD E over Lynch Creek carry?

About 150 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Lynch Creek RD E over Lynch Creek?

The structure is 170 ft (51.8 m) long with a longest span of 50 ft (15.2 m) and a deck 22 ft wide.

Who owns Lynch Creek RD E over Lynch Creek?

It is owned by the County Highway Agency.