US Bridges

Csah 133 over W Br Floodwood River

Fair

St. Louis County, Minnesota · 2.4 MI W of JCT TH 73 · Structure no. 96537

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
170
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 133 over W Br Floodwood River is a concrete culvert carrying Csah 133 over W Br Floodwood River in St. Louis County, Minnesota. It was built in 1988, so it is 37 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 170 vehicles a day, projected to reach 115 by 2039. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 24.2 mi (39 km).

Location

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CarriesCsah 133
CrossesW Br Floodwood River
Location2.4 MI W of JCT TH 73
RouteCounty Highway 133
CountySt. Louis County
StateMinnesota
Coordinates47.08474, -93.04187
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 48 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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2019)
Projected traffic115 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 133 over W Br Floodwood River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Csah 133 over W Br Floodwood River 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 September 2024.

How much traffic does Csah 133 over W Br Floodwood River carry?

About 170 vehicles per day (2019 count).

How long is Csah 133 over W Br Floodwood River?

The structure is 29 ft (8.9 m) long with a longest span of 11 ft (3.5 m).

Who owns Csah 133 over W Br Floodwood River?

It is owned by the County Highway Agency.