US Bridges

Ut 79 over Beaver Brook

Fair

Koochiching County, Minnesota · 0.6 MI N of JCT Csah 8 · Structure no. 36516

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
92 ft
2 main spans
Daily traffic
24
1973 count
Owner
County
County Highway Agency

About this bridge

Ut 79 over Beaver Brook is a prestressed concrete tee beam carrying Ut 79 over Beaver Brook in Koochiching County, Minnesota. It was built in 1980, so it is 45 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 24 vehicles a day, projected to reach 24 by 2029. The structure is 92 ft (28 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUt 79
CrossesBeaver Brook
Location0.6 MI N of JCT Csah 8
RouteCounty Highway 79
Coordinates48.36846, -93.4653
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating32.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length92 ft (28 m)
Longest span45 ft (13.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (1973)
Projected traffic24 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Ut 79 over Beaver Brook built?

It was built in 1980, making it 45 years old in 2025.

What condition is Ut 79 over Beaver Brook 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 Ut 79 over Beaver Brook carry?

About 24 vehicles per day (1973 count).

How long is Ut 79 over Beaver Brook?

The structure is 92 ft (28 m) long with a longest span of 45 ft (13.6 m) and a deck 27 ft wide.

Who owns Ut 79 over Beaver Brook?

It is owned by the County Highway Agency.