US Bridges

Csah 61 over BNSF RR

Poor

Carlton County, Minnesota · 0.2 MI S of JCT TH 210 · Structure no. 09505

Built
1979
46 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
177 ft
3 main spans
Daily traffic
2,884
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 61 over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Csah 61 over BNSF RR in Carlton County, Minnesota. It was built in 1979, so it is 46 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 4 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.

It carries about 2,884 vehicles a day, projected to reach 2,650 by 2042. The structure is 177 ft (54 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCsah 61
CrossesBNSF RR
Location0.2 MI S of JCT TH 210
RouteCounty Highway 61
CountyCarlton County
StateMinnesota
Coordinates46.66108, -92.47912
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating71.3 US tons
Inventory rating42.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length177 ft (54 m)
Longest span66 ft (20.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,884 (2022)
Projected traffic2,650 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
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 Csah 61 over BNSF RR built?

It was built in 1979, making it 46 years old in 2025.

What condition is Csah 61 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 December 2024.

How much traffic does Csah 61 over BNSF RR carry?

About 2,884 vehicles per day (2022 count).

How long is Csah 61 over BNSF RR?

The structure is 177 ft (54 m) long with a longest span of 66 ft (20.1 m) and a deck 47 ft wide.

Who owns Csah 61 over BNSF RR?

It is owned by the County Highway Agency.