US Bridges

SMA9803;MAPLE Grve over Settlers Canal

Good

Ada County, Idaho · In Boise · Structure no. 000000000025813

Built
2007
18 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
7,800
2023 count
Owner
County
County Highway Agency

About this bridge

SMA9803;MAPLE Grve over Settlers Canal is a prestressed concrete box beam or girders - multiple carrying SMA9803;MAPLE Grve over Settlers Canal in Ada County, Idaho. It was built in 2007, so it is 18 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 7,800 vehicles a day, roughly 22% of them trucks, projected to reach 11,700 by 2042. The structure is 67 ft (20.4 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSMA9803;MAPLE Grve
CrossesSettlers Canal
LocationIn Boise
RouteCity Street 9803
StateIdaho
Coordinates43.64853, -116.29439
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107 US tons
Inventory rating56 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length67 ft (20.4 m)
Longest span64 ft (19.5 m)
Deck width96 ft (29.3 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2023)
Projected traffic11,700 by 2042
Trucks22%
Lanes on structure4
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 SMA9803;MAPLE Grve over Settlers Canal built?

It was built in 2007, making it 18 years old in 2025.

What condition is SMA9803;MAPLE Grve over Settlers Canal 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 November 2023.

How much traffic does SMA9803;MAPLE Grve over Settlers Canal carry?

About 7,800 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is SMA9803;MAPLE Grve over Settlers Canal?

The structure is 67 ft (20.4 m) long with a longest span of 64 ft (19.5 m) and a deck 96 ft wide.

Who owns SMA9803;MAPLE Grve over Settlers Canal?

It is owned by the County Highway Agency.