US Bridges

Sma 7363;EMERALD over Ridenbaugh Canal

Fair

Ada County, Idaho · In Boise;emerald Street · Structure no. 000000000026038

Built
1990
35 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
13,000
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7363;EMERALD over Ridenbaugh Canal is a prestressed concrete tee beam carrying Sma 7363;EMERALD over Ridenbaugh Canal in Ada County, Idaho. It was built in 1990, so it is 35 years old, younger 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 13,000 vehicles a day, roughly 3% of them trucks, projected to reach 19,500 by 2042. The structure is 31 ft (9.4 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSma 7363;EMERALD
CrossesRidenbaugh Canal
LocationIn Boise;emerald Street
RouteCity Street 7363
CountyAda County
StateIdaho
Coordinates43.61096, -116.29642
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width64 ft (19.5 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic19,500 by 2042
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$866,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sma 7363;EMERALD over Ridenbaugh Canal built?

It was built in 1990, making it 35 years old in 2025.

What condition is Sma 7363;EMERALD over Ridenbaugh 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 November 2024.

How much traffic does Sma 7363;EMERALD over Ridenbaugh Canal carry?

About 13,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Sma 7363;EMERALD over Ridenbaugh Canal?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 64 ft wide.

Who owns Sma 7363;EMERALD over Ridenbaugh Canal?

It is owned by the County Highway Agency.