US Bridges

Christine Street over Settlers Canal

Fair

Ada County, Idaho · In Boise;christine St. · Structure no. 000000000026320

Built
1968
57 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
500
2023 count
Owner
County
County Highway Agency

About this bridge

Christine Street over Settlers Canal is a prestressed concrete tee beam carrying Christine Street over Settlers Canal in Ada County, Idaho. It was built in 1968, so it is 57 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 750 by 2039. The structure is 51 ft (15.5 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChristine Street
CrossesSettlers Canal
LocationIn Boise;christine St.
RouteCity Street 0
StateIdaho
Coordinates43.64506, -116.28725
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.8 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic750 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Christine Street over Settlers Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Christine Street 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 February 2023.

How much traffic does Christine Street over Settlers Canal carry?

About 500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Christine Street over Settlers Canal?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns Christine Street over Settlers Canal?

It is owned by the County Highway Agency.