US Bridges

T 93 over Tibbetts Brook

Fair

Mille Lacs County, Minnesota · 0.1 MI S of JCT Csah 16 · Structure no. L5904

Built
1972
53 years old
Condition
Fair
inspected September 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
20
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 93 over Tibbetts Brook is a concrete culvert carrying T 93 over Tibbetts Brook in Mille Lacs County, Minnesota. It was built in 1972, so it is 53 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 20 vehicles a day, projected to reach 20 by 2029. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesT 93
CrossesTibbetts Brook
Location0.1 MI S of JCT Csah 16
RouteCounty Highway 93
Coordinates45.86503, -93.74548
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
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 alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 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 traffic20 (1986)
Projected traffic20 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 93 over Tibbetts Brook built?

It was built in 1972, making it 53 years old in 2025.

What condition is T 93 over Tibbetts 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 September 2022.

How much traffic does T 93 over Tibbetts Brook carry?

About 20 vehicles per day (1986 count).

How long is T 93 over Tibbetts Brook?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.5 m).

Who owns T 93 over Tibbetts Brook?

It is owned by the Town or Township Highway Agency.