US Bridges

S. Park River DR over Ridenbaugh Canal

Fair

Ada County, Idaho · In Boise · Structure no. 000000000033400

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Frame
Concrete
Length
64 ft
2 main spans
Daily traffic
1,500
2023 count
Owner
County
County Highway Agency

About this bridge

S. Park River DR over Ridenbaugh Canal is a concrete frame carrying S. Park River DR 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 1,500 vehicles a day, roughly 5% of them trucks, projected to reach 2,250 by 2039. The structure is 64 ft (19.5 m) long and 130 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS. Park River DR
CrossesRidenbaugh Canal
LocationIn Boise
RouteCity Street 0
CountyAda County
StateIdaho
Coordinates43.56789, -116.14778
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span30 ft (9.1 m)
Deck width130 ft (39.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic2,250 by 2039
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S. Park River DR over Ridenbaugh Canal built?

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

What condition is S. Park River DR 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 March 2023.

How much traffic does S. Park River DR over Ridenbaugh Canal carry?

About 1,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S. Park River DR over Ridenbaugh Canal?

The structure is 64 ft (19.5 m) long with a longest span of 30 ft (9.1 m) and a deck 130 ft wide.

Who owns S. Park River DR over Ridenbaugh Canal?

It is owned by the County Highway Agency.