US Bridges

Csah 9 over Stream

Fair

Chisago County, Minnesota · 0.5 MI N of JCT 95 · Structure no. 13J07

Built
2004
21 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
1,032
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over Stream is a concrete culvert carrying Csah 9 over Stream in Chisago 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 fair condition with a lowest component rating of 6 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 1,032 vehicles a day, roughly 7% of them trucks, projected to reach 1,050 by 2042. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCsah 9
CrossesStream
Location0.5 MI N of JCT 95
RouteCounty Highway 9
CountyChisago County
StateMinnesota
Coordinates45.5201, -92.84741
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length29 ft (8.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,032 (2022)
Projected traffic1,050 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 9 over Stream built?

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

What condition is Csah 9 over Stream 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 October 2024.

How much traffic does Csah 9 over Stream carry?

About 1,032 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Csah 9 over Stream?

The structure is 29 ft (8.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 9 over Stream?

It is owned by the County Highway Agency.