US Bridges

Silverstone Way over Five Mile Creek

Good

Ada County, Idaho · Meridian · Structure no. 000000000034125

Built
2017
8 years old
Condition
Good
inspected March 2022
Type
Frame
Concrete
Length
20 ft
1 main span
Daily traffic
3,300
2023 count
Owner
County
County Highway Agency

About this bridge

Silverstone Way over Five Mile Creek is a concrete frame carrying Silverstone Way over Five Mile Creek in Ada County, Idaho. It was built in 2017, so it is 8 years old, younger than the Idaho average of 45.3 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 3,300 vehicles a day, projected to reach 4,950 by 2042. The structure is 20 ft (6.1 m) long and 85 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSilverstone Way
CrossesFive Mile Creek
LocationMeridian
RouteCity Street 0
CountyAda County
StateIdaho
Coordinates43.59156, -116.34975
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width85 ft (25.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic4,950 by 2042
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silverstone Way over Five Mile Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Silverstone Way over Five Mile 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 March 2022.

How much traffic does Silverstone Way over Five Mile Creek carry?

About 3,300 vehicles per day (2023 count).

How long is Silverstone Way over Five Mile Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 85 ft wide.

Who owns Silverstone Way over Five Mile Creek?

It is owned by the County Highway Agency.