US Bridges

Sma 7643;HEALY RD over New York Canal

Poor

Ada County, Idaho · At Boise Ecl;healy Road · Structure no. 000000000012800

Built
1964
61 years old
Condition
Poor
inspected February 2024
Type
Tee Beam
Concrete
Length
114 ft
3 main spans
Daily traffic
7,000
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7643;HEALY RD over New York Canal is a concrete tee beam carrying Sma 7643;HEALY RD over New York Canal in Ada County, Idaho. It was built in 1964, so it is 61 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,000 vehicles a day, projected to reach 10,500 by 2042. The structure is 114 ft (34.7 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSma 7643;HEALY RD
CrossesNew York Canal
LocationAt Boise Ecl;healy Road
RouteCounty Highway 7643
CountyAda County
StateIdaho
Coordinates43.56239, -116.13111
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
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 inspectionFebruary 2024
Inspection intervalevery 12 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span37 ft (11.3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2023)
Projected traffic10,500 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.7 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sma 7643;HEALY RD over New York Canal built?

It was built in 1964, making it 61 years old in 2025.

What condition is Sma 7643;HEALY RD over New York Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Sma 7643;HEALY RD over New York Canal carry?

About 7,000 vehicles per day (2023 count).

How long is Sma 7643;HEALY RD over New York Canal?

The structure is 114 ft (34.7 m) long with a longest span of 37 ft (11.3 m) and a deck 35 ft wide.

Who owns Sma 7643;HEALY RD over New York Canal?

It is owned by the County Highway Agency.