US Bridges

Sma 7563;OVERLAND over Ridenbaugh Canal

Fair

Ada County, Idaho · 1.5 S. 2.9 E. Meridian · Structure no. 000000000019836

Built
1991
34 years old
Condition
Fair
inspected February 2024
Type
Frame
Concrete
Length
31 ft
1 main span
Daily traffic
26,000
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7563;OVERLAND over Ridenbaugh Canal is a concrete frame carrying Sma 7563;OVERLAND over Ridenbaugh Canal in Ada County, Idaho. It was built in 1991, so it is 34 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 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 26,000 vehicles a day, roughly 1% of them trucks, projected to reach 39,000 by 2042. The structure is 31 ft (9.4 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSma 7563;OVERLAND
CrossesRidenbaugh Canal
Location1.5 S. 2.9 E. Meridian
RouteCounty Highway 7563
CountyAda County
StateIdaho
Coordinates43.59031, -116.3336
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating47 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2023)
Projected traffic39,000 by 2042
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$790,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sma 7563;OVERLAND over Ridenbaugh Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is Sma 7563;OVERLAND 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 February 2024.

How much traffic does Sma 7563;OVERLAND over Ridenbaugh Canal carry?

About 26,000 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Sma 7563;OVERLAND 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 76 ft wide.

Who owns Sma 7563;OVERLAND over Ridenbaugh Canal?

It is owned by the County Highway Agency.