US Bridges

N 700 West Street over Egin Canal

Fair

Fremont County, Idaho · In ST ANTHONY;N.700W.ST · Structure no. 000000000032230

Built
1973
52 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
29 ft
2 main spans
Daily traffic
210
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

N 700 West Street over Egin Canal is a prestressed concrete tee beam carrying N 700 West Street over Egin Canal in Fremont County, Idaho. It was built in 1973, so it is 52 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 210 vehicles a day, roughly 10% of them trucks, projected to reach 315 by 2039. The structure is 29 ft (8.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN 700 West Street
CrossesEgin Canal
LocationIn ST ANTHONY;N.700W.ST
RouteCity Street 0
StateIdaho
Coordinates43.965, -111.69175
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2023)
Projected traffic315 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$183,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N 700 West Street over Egin Canal built?

It was built in 1973, making it 52 years old in 2025.

What condition is N 700 West Street over Egin 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 November 2024.

How much traffic does N 700 West Street over Egin Canal carry?

About 210 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is N 700 West Street over Egin Canal?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.

Who owns N 700 West Street over Egin Canal?

It is owned by the City or Municipal Highway Agency.