US Bridges

STC6764;W Main ST over Egin Canal

Fair

Fremont County, Idaho · In ST Anthony;w.Main ST · Structure no. 000000000032235

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
1,100
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

STC6764;W Main ST over Egin Canal is a steel stringer/multi-beam or girder carrying STC6764;W Main ST over Egin Canal in Fremont County, Idaho. It was built in 1986, so it is 39 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 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 1,100 vehicles a day, projected to reach 1,650 by 2042. The structure is 63 ft (19.2 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSTC6764;W Main ST
CrossesEgin Canal
LocationIn ST Anthony;w.Main ST
RouteCity Street 6764
CountyFremont County
StateIdaho
Coordinates43.96644, -111.69728
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length63 ft (19.2 m)
Longest span47 ft (14.3 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,650 by 2042
Trucks0%
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$732,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC6764;W Main ST over Egin Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is STC6764;W Main ST 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 October 2024.

How much traffic does STC6764;W Main ST over Egin Canal carry?

About 1,100 vehicles per day (2023 count).

How long is STC6764;W Main ST over Egin Canal?

The structure is 63 ft (19.2 m) long with a longest span of 47 ft (14.3 m) and a deck 32 ft wide.

Who owns STC6764;W Main ST over Egin Canal?

It is owned by the City or Municipal Highway Agency.