US Bridges

Sma 9463;FIVE Mile over Settlers Canal

Fair

Ada County, Idaho · In Boise · Structure no. 000000000026088

Built
1975
50 years old, rebuilt 2010
Condition
Fair
inspected March 2024
Type
Frame
Concrete
Length
59 ft
1 main span
Daily traffic
12,500
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 9463;FIVE Mile over Settlers Canal is a concrete frame carrying Sma 9463;FIVE Mile over Settlers Canal in Ada County, Idaho. It was built in 1975 and reconstructed in 2010, so it is 50 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 5 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 12,500 vehicles a day, roughly 8% of them trucks, projected to reach 18,750 by 2042. The structure is 59 ft (18 m) long and 123 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSma 9463;FIVE Mile
CrossesSettlers Canal
LocationIn Boise
RouteCity Street 9463
CountyAda County
StateIdaho
Coordinates43.63917, -116.31428
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length59 ft (18 m)
Longest span59 ft (18 m)
Deck width123 ft (37.4 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2023)
Projected traffic18,750 by 2042
Trucks8%
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 Sma 9463;FIVE Mile over Settlers Canal built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2010.

What condition is Sma 9463;FIVE Mile over Settlers Canal 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 2024.

How much traffic does Sma 9463;FIVE Mile over Settlers Canal carry?

About 12,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sma 9463;FIVE Mile over Settlers Canal?

The structure is 59 ft (18 m) long with a longest span of 59 ft (18 m) and a deck 123 ft wide.

Who owns Sma 9463;FIVE Mile over Settlers Canal?

It is owned by the County Highway Agency.