US Bridges

Stc 7673;GOWEN RD over Five Mile Creek

Good

Ada County, Idaho · In Boise;gowen Road · Structure no. 000000000025860

Built
1940
85 years old
Condition
Good
inspected February 2023
Type
Frame
Concrete
Length
20 ft
1 main span
Daily traffic
3,100
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 7673;GOWEN RD over Five Mile Creek is a concrete frame carrying Stc 7673;GOWEN RD over Five Mile Creek in Ada County, Idaho. It was built in 1940, so it is 85 years old, older 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 3,100 vehicles a day, roughly 9% of them trucks, projected to reach 4,650 by 2042. The structure is 20 ft (6.1 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesStc 7673;GOWEN RD
CrossesFive Mile Creek
LocationIn Boise;gowen Road
RouteCounty Highway 7673
StateIdaho
Coordinates43.55711, -116.24731
Functional classUrban Collector

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width55 ft (16.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2023)
Projected traffic4,650 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Stc 7673;GOWEN RD over Five Mile Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Stc 7673;GOWEN RD 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 February 2023.

How much traffic does Stc 7673;GOWEN RD over Five Mile Creek carry?

About 3,100 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Stc 7673;GOWEN RD 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 55 ft wide.

Who owns Stc 7673;GOWEN RD over Five Mile Creek?

It is owned by the County Highway Agency.