US Bridges

SH 55 over N.Fk.Payette R;lardo

Fair

Valley County, Idaho · In Mccall · Structure no. 000000000014881

Built
2014
11 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
157 ft
1 main span
Daily traffic
7,400
2023 count
Owner
State
State Highway Agency

About this bridge

SH 55 over N.Fk.Payette R;lardo is a prestressed concrete stringer/multi-beam or girder carrying SH 55 over N.Fk.Payette R;lardo in Valley County, Idaho. It was built in 2014, so it is 11 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 7,400 vehicles a day, roughly 6% of them trucks, projected to reach 11,100 by 2042. The structure is 157 ft (47.9 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 55
CrossesN.Fk.Payette R;lardo
LocationIn Mccall
RouteState Highway 55
CountyValley County
StateIdaho
Coordinates44.91192, -116.11867
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length157 ft (47.9 m)
Longest span155 ft (47.2 m)
Deck width54 ft (16.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,400 (2023)
Projected traffic11,100 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 55 over N.Fk.Payette R;lardo built?

It was built in 2014, making it 11 years old in 2025.

What condition is SH 55 over N.Fk.Payette R;lardo 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 May 2023.

How much traffic does SH 55 over N.Fk.Payette R;lardo carry?

About 7,400 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 55 over N.Fk.Payette R;lardo?

The structure is 157 ft (47.9 m) long with a longest span of 155 ft (47.2 m) and a deck 54 ft wide.

Who owns SH 55 over N.Fk.Payette R;lardo?

It is owned by the State Highway Agency.