US Bridges

Stc 1841;1950 W over Aberdeen Springfield Cnl

Fair

Bingham County, Idaho · 1.5 N. Springfield · Structure no. 000000000022530

Built
1969
56 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
114 ft
2 main spans
Daily traffic
220
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 1841;1950 W over Aberdeen Springfield Cnl is a prestressed concrete tee beam carrying Stc 1841;1950 W over Aberdeen Springfield Cnl in Bingham County, Idaho. It was built in 1969, so it is 56 years old, older 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 220 vehicles a day, roughly 16% of them trucks, projected to reach 330 by 2042. The structure is 114 ft (34.7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesStc 1841;1950 W
CrossesAberdeen Springfield Cnl
Location1.5 N. Springfield
RouteCounty Highway 1841
CountyBingham County
StateIdaho
Coordinates43.09942, -112.68275
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length114 ft (34.7 m)
Longest span56 ft (17.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2023)
Projected traffic330 by 2042
Trucks16%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$855,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 1841;1950 W over Aberdeen Springfield Cnl built?

It was built in 1969, making it 56 years old in 2025.

What condition is Stc 1841;1950 W 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 March 2023.

How much traffic does Stc 1841;1950 W over Aberdeen Springfield Cnl carry?

About 220 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Stc 1841;1950 W over Aberdeen Springfield Cnl?

The structure is 114 ft (34.7 m) long with a longest span of 56 ft (17.1 m) and a deck 30 ft wide.

Who owns Stc 1841;1950 W over Aberdeen Springfield Cnl?

It is owned by the County Highway Agency.