US Bridges

W 50 S over Aberdeen Springfield Cnl

Fair

Bingham County, Idaho · 0.4 W. Rockford · Structure no. 000000000023030

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
111 ft
2 main spans
Daily traffic
90
2023 count
Owner
County
County Highway Agency

About this bridge

W 50 S over Aberdeen Springfield Cnl is a steel stringer/multi-beam or girder carrying W 50 S over Aberdeen Springfield Cnl in Bingham County, Idaho. It was built in 1984, so it is 41 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 90 vehicles a day, roughly 29% of them trucks, projected to reach 135 by 2042. The structure is 111 ft (33.8 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesW 50 S
CrossesAberdeen Springfield Cnl
Location0.4 W. Rockford
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates43.19, -112.54117
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span54 ft (16.5 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2023)
Projected traffic135 by 2042
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W 50 S over Aberdeen Springfield Cnl built?

It was built in 1984, making it 41 years old in 2025.

What condition is W 50 S over Aberdeen Springfield Cnl 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 W 50 S over Aberdeen Springfield Cnl carry?

About 90 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is W 50 S over Aberdeen Springfield Cnl?

The structure is 111 ft (33.8 m) long with a longest span of 54 ft (16.5 m) and a deck 34 ft wide.

Who owns W 50 S over Aberdeen Springfield Cnl?

It is owned by the County Highway Agency.