US Bridges

T 123 over N Branch Root River Trib

Good

Mower County, Minnesota · 1.1 MI N of Csah 7 · Structure no. 50K71

Built
2019
6 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
49
2019 count
Owner
County
County Highway Agency

About this bridge

T 123 over N Branch Root River Trib is a concrete culvert carrying T 123 over N Branch Root River Trib in Mower County, Minnesota. It was built in 2019, so it is 6 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 49 vehicles a day, projected to reach 49 by 2039. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 123
CrossesN Branch Root River Trib
Location1.1 MI N of Csah 7
RouteCounty Highway 123
Coordinates43.77591, -92.7093
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.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2019)
Projected traffic49 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 123 over N Branch Root River Trib built?

It was built in 2019, making it 6 years old in 2025.

What condition is T 123 over N Branch Root River Trib 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 September 2023.

How much traffic does T 123 over N Branch Root River Trib carry?

About 49 vehicles per day (2019 count).

How long is T 123 over N Branch Root River Trib?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).

Who owns T 123 over N Branch Root River Trib?

It is owned by the County Highway Agency.