US Bridges

Con 668 over BNSF Rr; 5th;6th Conn

Fair

Ramsey County, Minnesota · 0.2 MI E of JCT TH 52 · Structure no. 62875A

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
721 ft
7 main spans
Daily traffic
10,800
2020 count
Owner
State
State Highway Agency

About this bridge

Con 668 over BNSF Rr; 5th;6th Conn is a prestressed concrete stringer/multi-beam or girder carrying Con 668 over BNSF Rr; 5th;6th Conn in Ramsey County, Minnesota. It was built in 1989, so it is 36 years old, younger than the Minnesota average of 38.5 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 10,800 vehicles a day, roughly 5% of them trucks, projected to reach 5,750 by 2040. The structure is 721 ft (219.9 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCon 668
CrossesBNSF Rr; 5th;6th Conn
Location0.2 MI E of JCT TH 52
RouteInterstate 668
CountyRamsey County
StateMinnesota
Coordinates44.9547, -93.0782
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.2 US tons
Inventory rating39.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length721 ft (219.9 m)
Longest span130 ft (39.6 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,800 (2020)
Projected traffic5,750 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Con 668 over BNSF Rr; 5th;6th Conn built?

It was built in 1989, making it 36 years old in 2025.

What condition is Con 668 over BNSF Rr; 5th;6th Conn 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 June 2024.

How much traffic does Con 668 over BNSF Rr; 5th;6th Conn carry?

About 10,800 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Con 668 over BNSF Rr; 5th;6th Conn?

The structure is 721 ft (219.9 m) long with a longest span of 130 ft (39.6 m) and a deck 29 ft wide.

Who owns Con 668 over BNSF Rr; 5th;6th Conn?

It is owned by the State Highway Agency.