US Bridges

620 North Road over Milner Gooding Canal

Fair

Lincoln County, Idaho · 6.1 N. 9.0 W. Shoshone · Structure no. 000000000025110

Built
1960
65 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
31 ft
2 main spans
Daily traffic
560
2023 count
Owner
Local
Other Local Agency

About this bridge

620 North Road over Milner Gooding Canal is a steel continuous stringer/multi-beam or girder carrying 620 North Road over Milner Gooding Canal in Lincoln County, Idaho. It was built in 1960, so it is 65 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 560 vehicles a day, roughly 6% of them trucks, projected to reach 840 by 2042. The structure is 31 ft (9.4 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries620 North Road
CrossesMilner Gooding Canal
Location6.1 N. 9.0 W. Shoshone
RouteCounty Highway 0
CountyLincoln County
StateIdaho
Coordinates43.02558, -114.58697
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2023)
Projected traffic840 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$567,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 620 North Road over Milner Gooding Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is 620 North Road over Milner Gooding Canal 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 620 North Road over Milner Gooding Canal carry?

About 560 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is 620 North Road over Milner Gooding Canal?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 22 ft wide.

Who owns 620 North Road over Milner Gooding Canal?

It is owned by the Other Local Agency.