US Bridges

South Blvd over US 26 Nb-Sb;s.Blvd Gs

Good

Bonneville County, Idaho · In Idaho Falls · Structure no. 000000000031421

Built
2001
24 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
172 ft
3 main spans
Daily traffic
2,400
2023 count
Owner
State
State Highway Agency

About this bridge

South Blvd over US 26 Nb-Sb;s.Blvd Gs is a steel stringer/multi-beam or girder carrying South Blvd over US 26 Nb-Sb;s.Blvd Gs in Bonneville County, Idaho. It was built in 2001, so it is 24 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,400 vehicles a day, roughly 2% of them trucks, projected to reach 3,600 by 2042. The structure is 172 ft (52.4 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSouth Blvd
CrossesUS 26 Nb-Sb;s.Blvd Gs
LocationIn Idaho Falls
RouteCity Street 0
CountyBonneville County
StateIdaho
Coordinates43.49644, -112.03433
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 25 or greater
Structure length172 ft (52.4 m)
Longest span43 ft (13.1 m)
Deck width22 ft (6.6 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic3,600 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Blvd over US 26 Nb-Sb;s.Blvd Gs built?

It was built in 2001, making it 24 years old in 2025.

What condition is South Blvd over US 26 Nb-Sb;s.Blvd Gs in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does South Blvd over US 26 Nb-Sb;s.Blvd Gs carry?

About 2,400 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is South Blvd over US 26 Nb-Sb;s.Blvd Gs?

The structure is 172 ft (52.4 m) long with a longest span of 43 ft (13.1 m) and a deck 22 ft wide.

Who owns South Blvd over US 26 Nb-Sb;s.Blvd Gs?

It is owned by the State Highway Agency.