US Bridges

T 170 over E Br Chippewa River

Good

Pope County, Minnesota · 1.3 MI NW of JCT Csah 8 · Structure no. 91625

Built
1978
47 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
30
1994 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 170 over E Br Chippewa River is a concrete culvert carrying T 170 over E Br Chippewa River in Pope County, Minnesota. It was built in 1978, so it is 47 years old, older 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 30 vehicles a day, projected to reach 30 by 2029. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesT 170
CrossesE Br Chippewa River
Location1.3 MI NW of JCT Csah 8
RouteCounty Highway 170
Coordinates45.48205, -95.3615
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 inspectionAugust 2024
Inspection intervalevery 24 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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.1 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1994)
Projected traffic30 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 170 over E Br Chippewa River built?

It was built in 1978, making it 47 years old in 2025.

What condition is T 170 over E Br Chippewa 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 August 2024.

How much traffic does T 170 over E Br Chippewa River carry?

About 30 vehicles per day (1994 count).

How long is T 170 over E Br Chippewa River?

The structure is 40 ft (12.1 m) long with a longest span of 10 ft (3.1 m).

Who owns T 170 over E Br Chippewa River?

It is owned by the Town or Township Highway Agency.