US Bridges

Con 718 over Channel

Good

St. Louis County, Minnesota · 2.0 MI NE of JCT TH 535 · Structure no. 69816E

Built
1984
41 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
435 ft
6 main spans
Daily traffic
4,191
2021 count
Owner
State
State Highway Agency

About this bridge

Con 718 over Channel is a concrete continuous box beam or girders - multiple carrying Con 718 over Channel in St. Louis County, Minnesota. It was built in 1984, so it is 41 years old, older than the Minnesota average of 38.5 years.

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

It carries about 4,191 vehicles a day, roughly 1% of them trucks, projected to reach 2,000 by 2041. The structure is 435 ft (132.5 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCon 718
CrossesChannel
Location2.0 MI NE of JCT TH 535
RouteInterstate 718
Coordinates46.786, -92.09773
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length435 ft (132.5 m)
Longest span77 ft (23.5 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,191 (2021)
Projected traffic2,000 by 2041
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Con 718 over Channel built?

It was built in 1984, making it 41 years old in 2025.

What condition is Con 718 over Channel 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 October 2024.

How much traffic does Con 718 over Channel carry?

About 4,191 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Con 718 over Channel?

The structure is 435 ft (132.5 m) long with a longest span of 77 ft (23.5 m) and a deck 27 ft wide.

Who owns Con 718 over Channel?

It is owned by the State Highway Agency.