US Bridges

N. Boise Ave over Payette River

Fair

Gem County, Idaho · Emmett Ncl · Structure no. 000000000028154

Built
1996
29 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

N. Boise Ave over Payette River is a prestressed concrete tee beam carrying N. Boise Ave over Payette River in Gem County, Idaho. It was built in 1996, so it is 29 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 60 vehicles a day, roughly 5% of them trucks, projected to reach 90 by 2039. The structure is 92 ft (28 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN. Boise Ave
CrossesPayette River
LocationEmmett Ncl
RouteCounty Highway 0
CountyGem County
StateIdaho
Coordinates43.88183, -116.50333
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$125,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N. Boise Ave over Payette River built?

It was built in 1996, making it 29 years old in 2025.

What condition is N. Boise Ave over Payette River 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 October 2024.

How much traffic does N. Boise Ave over Payette River carry?

About 60 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is N. Boise Ave over Payette River?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 27 ft wide.

Who owns N. Boise Ave over Payette River?

It is owned by the County Highway Agency.