US Bridges

Csah 8 over W Br Rum River

FairPosted for load

Mille Lacs County, Minnesota · 1.2 MI W of JCT Csah 5 · Structure no. 48519

Built
1977
48 years old
Condition
Fair
inspected June 2023
Type
Slab
Wood or Timber
Length
96 ft
3 main spans
Daily traffic
260
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over W Br Rum River is a wood or timber slab carrying Csah 8 over W Br Rum River in Mille Lacs County, Minnesota. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 260 vehicles a day, projected to reach 285 by 2038. The structure is 96 ft (29.3 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 8
CrossesW Br Rum River
Location1.2 MI W of JCT Csah 5
RouteCounty Highway 8
CountyMille Lacs County
StateMinnesota
Coordinates45.69234, -93.69186
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2018)
Projected traffic285 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 8 over W Br Rum River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Csah 8 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 8 over W Br Rum River carry?

About 260 vehicles per day (2018 count).

How long is Csah 8 over W Br Rum River?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.

Who owns Csah 8 over W Br Rum River?

It is owned by the County Highway Agency.