US Bridges

CR 750 over Swan River

Good

St. Louis County, Minnesota · 0.5 MI E of JCT Csah 5 · Structure no. 69644

Built
2004
21 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
164 ft
3 main spans
Daily traffic
35
2015 count
Owner
County
County Highway Agency

About this bridge

CR 750 over Swan River is a prestressed concrete stringer/multi-beam or girder carrying CR 750 over Swan River in St. Louis County, Minnesota. It was built in 2004, so it is 21 years old, younger 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 35 vehicles a day, projected to reach 35 by 2039. The structure is 164 ft (50.1 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCR 750
CrossesSwan River
Location0.5 MI E of JCT Csah 5
RouteCounty Highway 750
Coordinates47.23967, -92.80178
Functional classRural Local

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length164 ft (50.1 m)
Longest span55 ft (16.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2015)
Projected traffic35 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 750 over Swan River built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 750 over Swan River 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 September 2023.

How much traffic does CR 750 over Swan River carry?

About 35 vehicles per day (2015 count).

How long is CR 750 over Swan River?

The structure is 164 ft (50.1 m) long with a longest span of 55 ft (16.7 m) and a deck 31 ft wide.

Who owns CR 750 over Swan River?

It is owned by the County Highway Agency.