US Bridges

T 312 over Pine Island Creek

FairPosted for load

Goodhue County, Minnesota · 1.7 MI N of JCT TH 52 · Structure no. L0740

Built
1935
90 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
53
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 312 over Pine Island Creek is a wood or timber slab carrying T 312 over Pine Island Creek in Goodhue County, Minnesota. It was built in 1935, so it is 90 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 53 vehicles a day, projected to reach 53 by 2029. The structure is 26 ft (8 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 312
CrossesPine Island Creek
Location1.7 MI N of JCT TH 52
RouteCounty Highway 312
CountyGoodhue County
StateMinnesota
Coordinates44.23569, -92.64079
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.3 US tons
Inventory rating28.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length26 ft (8 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (1986)
Projected traffic53 by 2029
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$290 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 312 over Pine Island Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is T 312 over Pine Island Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does T 312 over Pine Island Creek carry?

About 53 vehicles per day (1986 count).

How long is T 312 over Pine Island Creek?

The structure is 26 ft (8 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns T 312 over Pine Island Creek?

It is owned by the Town or Township Highway Agency.