CR 120 over N Br Root River

Good

Olmsted County, Minnesota · 0.4 MI W of JCT Csah 20 · Structure no. 55579

Built: 2004; 21 years old
Condition: Good; inspected October 2023
Type: Slab; Concrete Continuous
Length: 153 ft; 3 main spans
Daily traffic: 80; 2018 count
Owner: County; County Highway Agency

About this bridge

CR 120 over N Br Root River is a concrete continuous slab carrying CR 120 over N Br Root River in Olmsted County, Minnesota. It was built in 2004, so it is 21 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, projected to reach 67 by 2038. The structure is 153 ft (46.5 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCR 120

CrossesN Br Root River

Location0.4 MI W of JCT Csah 20

RouteCounty Highway 120

CountyOlmsted County

StateMinnesota

Coordinates43.88446, -92.44667

Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionOctober 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation8: Equal to present desirable criteria

Deck geometry8: Equal to present desirable criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating110.1 US tons

Inventory rating69.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 25 or greater

Structure length153 ft (46.5 m)

Longest span60 ft (18.3 m)

Deck width35 ft (10.8 m)

Roadway width32 ft (9.8 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2018)

Projected traffic67 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$1,000

NavigationNo navigation control on waterway

Frequently asked questions

When was CR 120 over N Br Root River built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 120 over N Br Root River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does CR 120 over N Br Root River carry?

About 80 vehicles per day (2018 count).

How long is CR 120 over N Br Root River?

The structure is 153 ft (46.5 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns CR 120 over N Br Root River?

It is owned by the County Highway Agency.