US Bridges

Event Center Drive over Porter Canal

Good

Bonneville County, Idaho · In Idaho Falls · Structure no. 000000000031640

Built
2019
6 years old
Condition
Good
inspected March 2023
Type
Frame
Concrete
Length
31 ft
1 main span
Daily traffic
500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Event Center Drive over Porter Canal is a concrete frame carrying Event Center Drive over Porter Canal in Bonneville County, Idaho. It was built in 2019, so it is 6 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, roughly 10% of them trucks, projected to reach 750 by 2041. The structure is 31 ft (9.4 m) long and 115 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEvent Center Drive
CrossesPorter Canal
LocationIn Idaho Falls
RouteCity Street 0
CountyBonneville County
StateIdaho
Coordinates43.47875, -112.06436
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating61.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width115 ft (35.1 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic750 by 2041
Trucks10%
Lanes on structure5
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Event Center Drive over Porter Canal built?

It was built in 2019, making it 6 years old in 2025.

What condition is Event Center Drive over Porter Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Event Center Drive over Porter Canal carry?

About 500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Event Center Drive over Porter Canal?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 115 ft wide.

Who owns Event Center Drive over Porter Canal?

It is owned by the City or Municipal Highway Agency.