US Bridges

CR 121 over Estes Brook

Poor

Mille Lacs County, Minnesota · 0.3 MI N of JCT Csah 13 · Structure no. 48J14

Built
2013
12 years old
Condition
Poor
inspected June 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
40
2010 count
Owner
County
County Highway Agency

About this bridge

CR 121 over Estes Brook is a concrete culvert carrying CR 121 over Estes Brook in Mille Lacs County, Minnesota. It was built in 2013, so it is 12 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 40 vehicles a day, projected to reach 50 by 2030. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 121
CrossesEstes Brook
Location0.3 MI N of JCT Csah 13
RouteCounty Highway 121
CountyMille Lacs County
StateMinnesota
Coordinates45.64801, -93.70787
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2010)
Projected traffic50 by 2030
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 CR 121 over Estes Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is CR 121 over Estes Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does CR 121 over Estes Brook carry?

About 40 vehicles per day (2010 count).

How long is CR 121 over Estes Brook?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.3 m).

Who owns CR 121 over Estes Brook?

It is owned by the County Highway Agency.