US Bridges

Road over 28 Mile Creek

Fair

Pierce County, Washington · 4.5 MI E of Hy 410/70 JCT · Structure no. 060507000001318

Built
1963
62 years old, rebuilt 2008
Condition
Fair
inspected March 2025
Type
Frame
Concrete
Length
55 ft
3 main spans
Daily traffic
278
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over 28 Mile Creek is a concrete frame carrying Road over 28 Mile Creek in Pierce County, Washington. It was built in 1963 and reconstructed in 2008, so it is 62 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 278 vehicles a day, roughly 15% of them trucks, projected to reach 417 by 2045. The structure is 55 ft (16.8 m) long and 29 ft wide. If it were closed, the detour would be 84.5 mi (136 km).

CarriesRoad
Crosses28 Mile Creek
Location4.5 MI E of Hy 410/70 JCT
RouteFederal Lands Road 70000
Coordinates47.12153, -121.54644
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating32.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length55 ft (16.8 m)
Longest span35 ft (10.7 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic278 (1991)
Projected traffic417 by 2045
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed84.5 mi (136 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over 28 Mile Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2008.

What condition is Road over 28 Mile 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 March 2025.

How much traffic does Road over 28 Mile Creek carry?

About 278 vehicles per day (1991 count), of which roughly 15% are trucks.

How long is Road over 28 Mile Creek?

The structure is 55 ft (16.8 m) long with a longest span of 35 ft (10.7 m) and a deck 29 ft wide.

Who owns Road over 28 Mile Creek?

It is owned by the U.S. Forest Service.