US Bridges

Csah 6 over Millers Creek

Fair

St. Louis County, Minnesota · 0.1 MI W of JCT TH 53 · Structure no. 91293

Built
1975
50 years old, rebuilt 2008
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
10,000
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 6 over Millers Creek is a concrete culvert carrying Csah 6 over Millers Creek in St. Louis County, Minnesota. It was built in 1975 and reconstructed in 2008, so it is 50 years old, older 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 10,000 vehicles a day, projected to reach 9,600 by 2039. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCsah 6
CrossesMillers Creek
Location0.1 MI W of JCT TH 53
RouteCounty Highway 6
Coordinates46.80758, -92.16515
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2019)
Projected traffic9,600 by 2039
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 6 over Millers Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2008.

What condition is Csah 6 over Millers Creek 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 6 over Millers Creek carry?

About 10,000 vehicles per day (2019 count).

How long is Csah 6 over Millers Creek?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns Csah 6 over Millers Creek?

It is owned by the County Highway Agency.