US Bridges

T 47 over BNSF RR

PoorClosed to traffic

Isanti County, Minnesota · 0.3 MI E of JCT TH 65 · Structure no. R0089

Built
1985
40 years old
Condition
Poor
inspected September 2018
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
143 ft
8 main spans
Daily traffic
11
1971 count
Owner
Railroad
Railroad

About this bridge

T 47 over BNSF RR is a wood or timber stringer/multi-beam or girder carrying T 47 over BNSF RR in Isanti County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 11 vehicles a day, projected to reach 11 by 2029. The structure is 143 ft (43.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesT 47
CrossesBNSF RR
Location0.3 MI E of JCT TH 65
RouteCounty Highway 47
CountyIsanti County
StateMinnesota
Coordinates45.6553, -93.18733
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionSeptember 2018
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating18.5 US tons
Inventory rating13.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans8
Design loadH 20
Structure length143 ft (43.6 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (1971)
Projected traffic11 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was T 47 over BNSF RR built?

It was built in 1985, making it 40 years old in 2025.

What condition is T 47 over BNSF RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2018.

How much traffic does T 47 over BNSF RR carry?

About 11 vehicles per day (1971 count).

How long is T 47 over BNSF RR?

The structure is 143 ft (43.6 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns T 47 over BNSF RR?

It is owned by the Railroad.