US Bridges

Csah 33 over W Br Rum River

Fair

Morrison County, Minnesota · 0.1 MI W of JCT Csah 32 · Structure no. 91977

Built
1978
47 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
722
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 33 over W Br Rum River is a concrete culvert carrying Csah 33 over W Br Rum River in Morrison County, Minnesota. It was built in 1978, so it is 47 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 722 vehicles a day, roughly 5% of them trucks, projected to reach 510 by 2042. The structure is 46 ft (13.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 33
CrossesW Br Rum River
Location0.1 MI W of JCT Csah 32
RouteCounty Highway 33
Coordinates45.86588, -93.85216
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length46 ft (13.9 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 traffic722 (2022)
Projected traffic510 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 33 over W Br Rum River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Csah 33 over W Br Rum 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 October 2023.

How much traffic does Csah 33 over W Br Rum River carry?

About 722 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Csah 33 over W Br Rum River?

The structure is 46 ft (13.9 m) long with a longest span of 11 ft (3.5 m).

Who owns Csah 33 over W Br Rum River?

It is owned by the County Highway Agency.