US Bridges

Galloway Road over I 84;GALLOWAY Road Gs

Fair

Canyon County, Idaho · 4.3 W. Caldwell · Structure no. 000000000027620

Built
1962
63 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
219 ft
3 main spans
Daily traffic
410
2023 count
Owner
State
State Highway Agency

About this bridge

Galloway Road over I 84;GALLOWAY Road Gs is a prestressed concrete stringer/multi-beam or girder carrying Galloway Road over I 84;GALLOWAY Road Gs in Canyon County, Idaho. It was built in 1962, so it is 63 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 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 410 vehicles a day, roughly 46% of them trucks, projected to reach 615 by 2042. The structure is 219 ft (66.8 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGalloway Road
CrossesI 84;GALLOWAY Road Gs
Location4.3 W. Caldwell
RouteCounty Highway 0
CountyCanyon County
StateIdaho
Coordinates43.75, -116.71472
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length219 ft (66.8 m)
Longest span52 ft (15.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2023)
Projected traffic615 by 2042
Trucks46%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Galloway Road over I 84;GALLOWAY Road Gs built?

It was built in 1962, making it 63 years old in 2025.

What condition is Galloway Road over I 84;GALLOWAY Road Gs 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 June 2023.

How much traffic does Galloway Road over I 84;GALLOWAY Road Gs carry?

About 410 vehicles per day (2023 count), of which roughly 46% are trucks.

How long is Galloway Road over I 84;GALLOWAY Road Gs?

The structure is 219 ft (66.8 m) long with a longest span of 52 ft (15.8 m) and a deck 29 ft wide.

Who owns Galloway Road over I 84;GALLOWAY Road Gs?

It is owned by the State Highway Agency.