US Bridges

T 306 over Shingle Creek

Good

Goodhue County, Minnesota · 0.7 MI W of JCT TH 57 · Structure no. 25622

Built
2021
4 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
57
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 306 over Shingle Creek is a prestressed concrete stringer/multi-beam or girder carrying T 306 over Shingle Creek in Goodhue 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 57 vehicles a day, projected to reach 57 by 2040. The structure is 66 ft (20.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 306
CrossesShingle Creek
Location0.7 MI W of JCT TH 57
RouteCounty Highway 306
Coordinates44.28358, -92.8064
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 inspectionSeptember 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length66 ft (20.1 m)
Longest span64 ft (19.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2020)
Projected traffic57 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 306 over Shingle Creek built?

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

What condition is T 306 over Shingle Creek 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 306 over Shingle Creek carry?

About 57 vehicles per day (2020 count).

How long is T 306 over Shingle Creek?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.4 m) and a deck 31 ft wide.

Who owns T 306 over Shingle Creek?

It is owned by the Town or Township Highway Agency.