US Bridges

Crystal Mnt Blvd over Silver Creek

Good

Pierce County, Washington · 3.4 E JCT SR410 · Structure no. 088947000000000

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Frame
Concrete
Length
32 ft
1 main span
Daily traffic
675
2020 count
Owner
County
County Highway Agency

About this bridge

Crystal Mnt Blvd over Silver Creek is a concrete frame carrying Crystal Mnt Blvd over Silver Creek in Pierce County, Washington. It was built in 2015, so it is 10 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 675 vehicles a day, roughly 5% of them trucks, projected to reach 1,086 by 2041. The structure is 32 ft (9.8 m) long and 58 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCrystal Mnt Blvd
CrossesSilver Creek
Location3.4 E JCT SR410
RouteFederal Lands Road 97810
Coordinates46.97286, -121.49587
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating94.2 US tons
Inventory rating72.9 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width58 ft (17.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2020)
Projected traffic1,086 by 2041
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$1.3 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Crystal Mnt Blvd over Silver Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Crystal Mnt Blvd over Silver Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Crystal Mnt Blvd over Silver Creek carry?

About 675 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Crystal Mnt Blvd over Silver Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 58 ft wide.

Who owns Crystal Mnt Blvd over Silver Creek?

It is owned by the County Highway Agency.