US Bridges

SH 79 over I 84 Eb-Wb;s.Jerome Ic

Fair

Jerome County, Idaho · 2.8 E. Jerome · Structure no. 000000000015310

Built
1966
59 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
470 ft
5 main spans
Daily traffic
15,000
2023 count
Owner
State
State Highway Agency

About this bridge

SH 79 over I 84 Eb-Wb;s.Jerome Ic is a steel stringer/multi-beam or girder carrying SH 79 over I 84 Eb-Wb;s.Jerome Ic in Jerome County, Idaho. It was built in 1966, so it is 59 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 15,000 vehicles a day, roughly 2% of them trucks, projected to reach 22,500 by 2042. The structure is 470 ft (143.3 m) long and 68 ft wide.

Location

Open in Google Maps
CarriesSH 79
CrossesI 84 Eb-Wb;s.Jerome Ic
Location2.8 E. Jerome
RouteState Highway 79
CountyJerome County
StateIdaho
Coordinates42.68833, -114.51847
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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length470 ft (143.3 m)
Longest span105 ft (32 m)
Deck width68 ft (20.7 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic22,500 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 79 over I 84 Eb-Wb;s.Jerome Ic built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 79 over I 84 Eb-Wb;s.Jerome Ic 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 August 2024.

How much traffic does SH 79 over I 84 Eb-Wb;s.Jerome Ic carry?

About 15,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is SH 79 over I 84 Eb-Wb;s.Jerome Ic?

The structure is 470 ft (143.3 m) long with a longest span of 105 ft (32 m) and a deck 68 ft wide.

Who owns SH 79 over I 84 Eb-Wb;s.Jerome Ic?

It is owned by the State Highway Agency.