US Bridges

Csah 39 over Rush Creek

Good

Chisago County, Minnesota · 0.1 MI S of JCT Csah 1 · Structure no. 13J21

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
2,155
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 39 over Rush Creek is a concrete culvert carrying Csah 39 over Rush Creek in Chisago County, Minnesota. It was built in 2020, so it is 5 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 2,155 vehicles a day, projected to reach 2,883 by 2042. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 39
CrossesRush Creek
Location0.1 MI S of JCT Csah 1
RouteCounty Highway 39
Coordinates45.68227, -92.98114
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,155 (2022)
Projected traffic2,883 by 2042
Trucks—
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 39 over Rush Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Csah 39 over Rush Creek 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 2024.

How much traffic does Csah 39 over Rush Creek carry?

About 2,155 vehicles per day (2022 count).

How long is Csah 39 over Rush Creek?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 39 over Rush Creek?

It is owned by the County Highway Agency.