US Bridges

SMA7017;FL.FEATHER over Dry Creek

Good

Ada County, Idaho · 0.8 N. 0.2 W. Eagle · Structure no. 000000000026021

Built
1991
34 years old
Condition
Good
inspected October 2021
Type
Frame
Concrete
Length
27 ft
1 main span
Daily traffic
5,900
2023 count
Owner
County
County Highway Agency

About this bridge

SMA7017;FL.FEATHER over Dry Creek is a concrete frame carrying SMA7017;FL.FEATHER over Dry Creek in Ada County, Idaho. It was built in 1991, so it is 34 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 5,900 vehicles a day, roughly 2% of them trucks, projected to reach 8,850 by 2042. The structure is 27 ft (8.2 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSMA7017;FL.FEATHER
CrossesDry Creek
Location0.8 N. 0.2 W. Eagle
RouteCity Street 7017
StateIdaho
Coordinates43.70639, -116.35778
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating110.1 US tons
Inventory rating71 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2023)
Projected traffic8,850 by 2042
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 SMA7017;FL.FEATHER over Dry Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is SMA7017;FL.FEATHER over Dry 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 October 2021.

How much traffic does SMA7017;FL.FEATHER over Dry Creek carry?

About 5,900 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is SMA7017;FL.FEATHER over Dry Creek?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 54 ft wide.

Who owns SMA7017;FL.FEATHER over Dry Creek?

It is owned by the County Highway Agency.