US Bridges

Spr 4 over BNSF RR

FairPosted for load

Lyon County, Minnesota · 0.6 MI NW of JCT TH 23 · Structure no. L5994

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
133 ft
5 main spans
Daily traffic
150
1993 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Spr 4 over BNSF RR is a wood or timber stringer/multi-beam or girder carrying Spr 4 over BNSF RR in Lyon County, Minnesota. It was built in 1972, so it is 53 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 150 vehicles a day, projected to reach 150 by 2029. The structure is 133 ft (40.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSpr 4
CrossesBNSF RR
Location0.6 MI NW of JCT TH 23
RouteState Lands Road 4
CountyLyon County
StateMinnesota
Coordinates44.36017, -95.92499
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating37.3 US tons
Inventory rating25.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length133 ft (40.4 m)
Longest span35 ft (10.7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (1993)
Projected traffic150 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

OwnerState Park, Forest, or Reservation Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$477 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Spr 4 over BNSF RR built?

It was built in 1972, making it 53 years old in 2025.

What condition is Spr 4 over BNSF RR 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 September 2023.

How much traffic does Spr 4 over BNSF RR carry?

About 150 vehicles per day (1993 count).

How long is Spr 4 over BNSF RR?

The structure is 133 ft (40.4 m) long with a longest span of 35 ft (10.7 m) and a deck 24 ft wide.

Who owns Spr 4 over BNSF RR?

It is owned by the State Park, Forest, or Reservation Agency and maintained by the County Highway Agency.