US Bridges

Sma 7030;STATE ST over Dry Creek

Fair

Ada County, Idaho · At Eagle Wcl · Structure no. 000000000014285

Built
1959
66 years old
Condition
Fair
inspected March 2022
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
4,900
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7030;STATE ST over Dry Creek is a concrete frame carrying Sma 7030;STATE ST over Dry Creek in Ada County, Idaho. It was built in 1959, so it is 66 years old, older than the Idaho average of 45.3 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 4,900 vehicles a day, roughly 25% of them trucks, projected to reach 7,350 by 2042. The structure is 23 ft (7 m) long and 69 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSma 7030;STATE ST
CrossesDry Creek
LocationAt Eagle Wcl
RouteCounty Highway 7030
CountyAda County
StateIdaho
Coordinates43.69564, -116.36894
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width69 ft (20.9 m)
Roadway width46 ft (13.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic7,350 by 2042
Trucks25%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Sma 7030;STATE ST over Dry Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Sma 7030;STATE ST over Dry 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 2022.

How much traffic does Sma 7030;STATE ST over Dry Creek carry?

About 4,900 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is Sma 7030;STATE ST over Dry Creek?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 69 ft wide.

Who owns Sma 7030;STATE ST over Dry Creek?

It is owned by the County Highway Agency.