US Bridges

Csah 5 over W Br Rum River

Fair

Mille Lacs County, Minnesota · 0.8 MI N of JCT Csah · Structure no. 48503

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
94 ft
3 main spans
Daily traffic
690
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 5 over W Br Rum River is a prestressed concrete channel beam carrying Csah 5 over W Br Rum River in Mille Lacs County, Minnesota. It was built in 1966, so it is 59 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 5 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 690 vehicles a day, projected to reach 640 by 2038. The structure is 94 ft (28.5 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 5
CrossesW Br Rum River
Location0.8 MI N of JCT Csah
RouteCounty Highway 5
CountyMille Lacs County
StateMinnesota
Coordinates45.67528, -93.66692
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length94 ft (28.5 m)
Longest span31 ft (9.5 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2018)
Projected traffic640 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 5 over W Br Rum River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 5 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 June 2023.

How much traffic does Csah 5 over W Br Rum River carry?

About 690 vehicles per day (2018 count).

How long is Csah 5 over W Br Rum River?

The structure is 94 ft (28.5 m) long with a longest span of 31 ft (9.5 m) and a deck 31 ft wide.

Who owns Csah 5 over W Br Rum River?

It is owned by the County Highway Agency.