US Bridges

T 470 over Unnamed Stream

Good

Fillmore County, Minnesota · 0.5 MI S of JCT Csah 12 · Structure no. 23K38

Built
2021
4 years old
Condition
Good
inspected June 2021
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
48
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 470 over Unnamed Stream is a concrete culvert carrying T 470 over Unnamed Stream in Fillmore County, Minnesota. It was built in 2021, so it is 4 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 48 vehicles a day, projected to reach 48 by 2041. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 470
CrossesUnnamed Stream
Location0.5 MI S of JCT Csah 12
RouteCounty Highway 470
Coordinates43.64976, -92.15419
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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal 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 length35 ft (10.8 m)
Longest span17 ft (5.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2021)
Projected traffic48 by 2041
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 470 over Unnamed Stream built?

It was built in 2021, making it 4 years old in 2025.

What condition is T 470 over Unnamed Stream 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 June 2021.

How much traffic does T 470 over Unnamed Stream carry?

About 48 vehicles per day (2021 count).

How long is T 470 over Unnamed Stream?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.1 m).

Who owns T 470 over Unnamed Stream?

It is owned by the Town or Township Highway Agency.