US Bridges

Center Street over US 20;SUGAR City Half Ic

Fair

Madison County, Idaho · In Sugar City · Structure no. 000000000012578

Built
2001
24 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
202 ft
2 main spans
Daily traffic
4,000
2023 count
Owner
State
State Highway Agency

About this bridge

Center Street over US 20;SUGAR City Half Ic is a prestressed concrete continuous stringer/multi-beam or girder carrying Center Street over US 20;SUGAR City Half Ic in Madison 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 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 4,000 vehicles a day, projected to reach 6,000 by 2042. The structure is 202 ft (61.6 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCenter Street
CrossesUS 20;SUGAR City Half Ic
LocationIn Sugar City
RouteCity Street 0
CountyMadison County
StateIdaho
Coordinates43.87558, -111.75747
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length202 ft (61.6 m)
Longest span98 ft (29.9 m)
Deck width57 ft (17.5 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2023)
Projected traffic6,000 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Center Street over US 20;SUGAR City Half Ic built?

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

What condition is Center Street over US 20;SUGAR City Half 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 September 2023.

How much traffic does Center Street over US 20;SUGAR City Half Ic carry?

About 4,000 vehicles per day (2023 count).

How long is Center Street over US 20;SUGAR City Half Ic?

The structure is 202 ft (61.6 m) long with a longest span of 98 ft (29.9 m) and a deck 57 ft wide.

Who owns Center Street over US 20;SUGAR City Half Ic?

It is owned by the State Highway Agency.