US Bridges

Csah 9 over ST Francis River

Good

Sherburne County, Minnesota · 2.0 MI E of JCT Csah 5 · Structure no. 71518

Built
1998
27 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
3 main spans
Daily traffic
1,150
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over ST Francis River is a prestressed concrete stringer/multi-beam or girder carrying Csah 9 over ST Francis River in Sherburne County, Minnesota. It was built in 1998, so it is 27 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 1,150 vehicles a day, projected to reach 870 by 2038. The structure is 132 ft (40.1 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 9
CrossesST Francis River
Location2.0 MI E of JCT Csah 5
RouteCounty Highway 9
Coordinates45.4953, -93.69083
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80.7 US tons
Inventory rating61.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length132 ft (40.1 m)
Longest span42 ft (12.7 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2018)
Projected traffic870 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Csah 9 over ST Francis River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Csah 9 over ST Francis 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 October 2024.

How much traffic does Csah 9 over ST Francis River carry?

About 1,150 vehicles per day (2018 count).

How long is Csah 9 over ST Francis River?

The structure is 132 ft (40.1 m) long with a longest span of 42 ft (12.7 m) and a deck 39 ft wide.

Who owns Csah 9 over ST Francis River?

It is owned by the County Highway Agency.