US Bridges

T 180 over Vermillion River

Good

Dakota County, Minnesota · 1.5 MI N of JCT Csah 62 · Structure no. 19519

Built
1982
43 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
80
1993 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 180 over Vermillion River is a prestressed concrete tee beam carrying T 180 over Vermillion River in Dakota County, Minnesota. It was built in 1982, so it is 43 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 80 vehicles a day, projected to reach 80 by 2029. The structure is 136 ft (41.6 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 180
CrossesVermillion River
Location1.5 MI N of JCT Csah 62
RouteCounty Highway 180
Coordinates44.69578, -92.93388
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating26.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length136 ft (41.6 m)
Longest span46 ft (13.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (1993)
Projected traffic80 by 2029
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

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 180 over Vermillion River built?

It was built in 1982, making it 43 years old in 2025.

What condition is T 180 over Vermillion 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 November 2023.

How much traffic does T 180 over Vermillion River carry?

About 80 vehicles per day (1993 count).

How long is T 180 over Vermillion River?

The structure is 136 ft (41.6 m) long with a longest span of 46 ft (13.9 m) and a deck 32 ft wide.

Who owns T 180 over Vermillion River?

It is owned by the Town or Township Highway Agency.